Relevant bibliographies by topics / Kaolin

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Kaolin'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 August 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Kaolin.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Kaolin"

1

Gan, Changjiao, Hongjie Hu, Zhiyun Meng, Xiaoxia Zhu, Ruolan Gu, Zhuona Wu, Hongliang Wang, et al. "Characterization and Hemostatic Potential of Two Kaolins from Southern China." Molecules 24, no. 17 (August 30, 2019): 3160. http://dx.doi.org/10.3390/molecules24173160.

Full text
Abstract:
The physicochemical properties and potential hemostatic application of Wenchang kaolin and Maoming kaolin were inspected and evaluated. Chemical composition analysis, Fourier transform infrared (FTIR) spectroscopy, surface area determination, X-ray diffraction, particle size, scanning electron microscopy (SEM) observations, and zeta potential analysis were performed to quantify the physical and chemical properties of the two kaolins. The results showed that both kaolins have typical FTIR bands of kaolinite with a weight fraction for kaolinite over 90 wt%. Larger conglobate aggregates of Maoming kaolin demonstrated wider particle size distributions with two peaks at 3.17 and 35.57 μm, while the book-like Wenchang kaolin had narrow particle size distribution, with a frequent size of 5.64 μm. Furthermore, thrombelastography, the whole blood clotting tests (WBCT), plasma recalcification time (PRT) measurement, and MTT assay were performed to measure the clotting activities and biocompatibility of the two kaolins. The results showed that both kaolins could promote blood coagulation with good cytocompatibility, while Wenchang kaolin had a better procoagulant activity than Maoming kaolin. These findings demonstrated Wenchang kaolin to be a more suitable local source material for application as a hemostatic agent.
APA, Harvard, Vancouver, ISO, and other styles
2

Oyebanjo, O. M., G. E. Ekosse, and J. O. Odiyo. "Mineral Constituents and Kaolinite Crystallinity of the <2 μm Fraction of Cretaceous-Paleogene/Neogene Kaolins from Eastern Dahomey and Niger Delta Basins, Nigeria." Open Geosciences 10, no. 1 (June 11, 2018): 157–66. http://dx.doi.org/10.1515/geo-2018-0012.

Full text
Abstract:
Abstract This study examines the mineral composition and kaolinite crystallinity of Cretaceous and Paleogene/Neogene kaolins from Nigeria based on X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy data of the <2 μm fraction. The purpose of this was to assess the minerals present, structural order, and possible industrial applications of the kaolins. A total of twenty-eight (28) samples comprising of fifteen (15) Cretaceous and thirteen (13) Paleogene/Neogene kaolins were analysed. The XRD results showed that both the Cretaceous and Paleogene/Neogene kaolins have kaolinite as the dominant phase followed by quartz with anatase, hematite, and goethite occurring in minor quantities. Based on the mineralogical composition, the Paleogene/Neogene deposits were classified as sandy kaolin and the Cretaceous deposits were classified as pure kaolin. The kaolinite structural order for the Cretaceous pure kaolin was higher than that obtained for the Paleogene/Neogene sandy kaolin with more quartz, iron, and titanium oxides. The economic consideration of the deposits showed that the sandy kaolin type can be used in pigment industrial applications whereas the pure kaolin type can be used in refractory, fiberglass, and ceramic industrial applications.
APA, Harvard, Vancouver, ISO, and other styles
3

Galan, E., P. Aparicio, I. Gonzalez, and A. Miras. "Contribution of multivariate analysis to the correlation of some properties of kaolin with its mineralogical and chemical composition." Clay Minerals 33, no. 1 (March 1998): 65–75. http://dx.doi.org/10.1180/000985598545435.

Full text
Abstract:
AbstractAccording to multivariate analysis, the following were established (a) kaolinite crystallinity index (KCI) values determined by XRD are highly correlated to one another and seemingly influenced by kaolin impurities; (b) kaolin minerals are concentrated mainly in the fractions <4 µm; (c) the kaolin surface area as determined by the BET (nitrogen adsorption) method is more markedly affected by kaolin impurities than by kaolin minerals themselves; (d) BET surfaces increase when kaolinite crystallinity decreases; (e) brightness is inversely correlated with kaolin impurities; (f) the more ordered the kaolinite and the greater the proportion in the <4 µm fraction of the kaolin, the greater the brightness; and (g) KCI values are particle size-distribution dependent for sedimentary-residual kaolins. The correlations obtained were better when kaolins were selected according to their origin because the kaolin minerals and their impurities, particle size-distribution and texture were more alike. The industrial properties of kaolin can not be predicted from other basic properties such as mineralogy, KCI, etc., because they are intricately related to one another.
APA, Harvard, Vancouver, ISO, and other styles
4

Tsolis-Katagas, P., and D. Papoulis. "PHYSICAL AND CHEMICAL PROPERTIES OF SOME GREEK KAOLINS OF DIFFERENT ENVIRONMENTS OF ORIGIN." Bulletin of the Geological Society of Greece 36, no. 1 (January 1, 2004): 130. http://dx.doi.org/10.12681/bgsg.16592.

Full text
Abstract:
Two widely different kaolin deposits were investigated in order to determine their physical and chemical properties and suggest their possible utilization. Kaolin deposits from Leucogia area, NE Greece, were formed in situ by weathering of gneissic rocks under a temperate climate; they consist largely of halloysite exhibiting different morphological forms, and stacks and plates of kaolinite in various proportions. The kaolin occurrences of Kos island are products of hydrothermally altered rhyolitic rocks of Pliocene age. The highly altered samples contain dickite and kaolinite. Testing included particle size distribution, brightness and whiteness, measurement of CEC (cation exchange capacity) and some ceramic properties including Atterberg limits. The CEC values range between 3.8-8 meq/100 g and 0.8-2.2 meq/100 g for kaolin samples from Leucogia and Kos island respectively and reflect the differences in clay mineralogy and the characteristic kaolin mineral present. Platy halloysite enhances CEC in Leucogia kaolins while kaolinite-rich samples in Kos exhibit higher CEC values than dickite-rich samples. Atterberg limit tests reveal the Leucogia and Kos kaolins to be of low to medium plasticity and to be classified in the category of kaolinitic clays suitable for brick making. The Leucogia kaolin shows relatively higher brightness (47-60%) and whiteness (62-77%) than Kos kaolin (41-48% and 61-66% respectively). These properties are influenced by the type of kaolin mineral present, their relative proportions and the FeaCb content of the samples. The obtained values for brightness and whiteness from both areas are lower compared to the standard commercial kaolins for the paper and filler market. Brightness, however, can be improved by fine grinding and refinement. The physical, chemical and mineralogical properties of Leucogia and Kos kaolins indicate that they are of low grade type. However, kaolin processing from the crude state can optimize some of these highly commercial properties
APA, Harvard, Vancouver, ISO, and other styles
5

Bekpulatov, Javlon Mustafokulievich, Dilmurod Bakhtiyarovich Makhmarezhabov, and Azamat Abdurashidovich Umirzokov. "On the Possibility of Waste-Free Use of Mineral Resources of the Angrensky Brain Coal Deposit." E3S Web of Conferences 491 (2024): 02018. http://dx.doi.org/10.1051/e3sconf/202449102018.

Full text
Abstract:
The Angren lignite basin is a complex coal-kaolin deposit. Here, in addition to brown coal, there are large reserves of kaolin clays of two types - primary and secondary, occurring respectively in the soil and the roof of the coal strata. Secondary clays, in turn, subdivided into gray and variegated, which during overburden and mining of coal seams in the bulk go to the dump. Gray kaolins currently partially processed at the “Angren Kaolin” LLC factory in order to obtain enriched kaolin used for the production of building ceramics, etc.
APA, Harvard, Vancouver, ISO, and other styles
6

Oyebanjo, Olaonipekun, Nenita Bukalo, and Georges-Ivo Ekosse. "Provenance and Paleoenvironmental Studies of Cretaceous African and South American Kaolins: Similarities and Differences." Minerals 11, no. 10 (September 30, 2021): 1074. http://dx.doi.org/10.3390/min11101074.

Full text
Abstract:
The African and South American continents are of great interest in continental drift studies. Hence, this study assesses the possible correlations in the provenance and paleoenvironment of selected Cretaceous Nigerian and Cameroonian (in Africa), and Argentine and Brazilian (in South America) kaolins through an analysis of their mineralogical and geochemical characteristics. On the basis of their mineralogical composition, the Nigerian Lakiri and Brazilian soft Capim River kaolins are predominantly characterised as pure kaolins, whereas the kaolins from Cameroon (except for Yatchika) and Argentina are mainly considered as sandy kaolins. The present study revealed that the Brazilian soft Capim River kaolin had the highest kaolinite structural order, whilst the Argentine Santa Cruz kaolin had the least. The kaolins from Nigeria, Cameroon, and Argentina were dominated by subhedral to anhedral kaolinite crystals relative to the Brazilian kaolin, which possess more euhedral kaolinite crystals. The kaolins were formed by the intense weathering of intermediate to felsic rocks under anoxic conditions, which is consistent with the structural framework of the basins. The average paleotemperatures obtained for the kaolins (except for the one from Santa Cruz) indicates that the paleoweathering took place under tropical climates.
APA, Harvard, Vancouver, ISO, and other styles
7

Turkovskii, V. A., I. A. Pavlova, I. D. Kashсheev, K. G. Zemlyanoi, A. A. Glebova, K. V. Baryshnikova, and E. P. Farafontova. "Research of properties of kyshtym kaolin." NOVYE OGNEUPORY (NEW REFRACTORIES) 1, no. 12 (June 1, 2023): 12–17. http://dx.doi.org/10.17073/1683-4518-2022-12-12-17.

Full text
Abstract:
In the research work, an attempt to identify the causes of unstable behavior of different samples of kyshtym kaolin during liquefaction was made. The chemical, phase composition and microstructure of kaolins of Kyshtymskoe and Glukhovetskoe deposits are investigated. It has been established that kaolin liquefaction ability is influenced both by the presence of smectite in kaolin and mainly by the degree of ordering of the kaolinite structure. A larger amount of kaolinite with a high-ordered structure ensures good kaolin liquefaction and stable properties of casting mixture based on them. Based on the conducted studies, the possibility of assessing the liquefaction ability of kaolin based on the results of X-ray phase analysis of its structure has been established.
APA, Harvard, Vancouver, ISO, and other styles
8

Murray, H. H., C. A. Alves, and C. H. Bastos. "Mining, processing and applications of the Capim Basin kaolin, Brazil." Clay Minerals 42, no. 2 (June 2007): 145–51. http://dx.doi.org/10.1180/claymin.2007.042.2.01.

Full text
Abstract:
AbstractHigh-quality kaolins are produced from two sites in the Capim River area in Pará State, northern Brazil. One mine is operated by Rio Capim Caulim (RCC) owned by Imerys and the other by Pará Pigmentos S.A. (PPSA) owned by Caemi (CVRD Group). The kaolin deposits are located on low-relief plateaux with a lateritic cap. The kaolin strata are in the Ipixuna Formation of Upper Cretaceous Age. There are two distinct kaolin layers, a 4–5 m thick soft kaolin which is overlain in the southern portion of the basin by a 4–5 m thick hard kaolin. The soft and hard designations refer to particle size, with the soft kaolin being relatively coarse and the hard kaolin very fine. The kaolin is mined, partially beneficiated, and pumped through pipelines to the port at Barcarena on the Guama River, a large tributary of the Amazon River. The PPSA kaolin is fully processed at the plant near the mine site and pumped to Barcarena where it is spray dried. The RCC kaolin is only partially processed at the mine site. This partially processed kaolin is pumped to Barcarena where it is beneficiated. The finished kaolin is high quality and is shipped to North and South American, European, and Asian paper-coating markets. More than 1.6M tons were shipped from Barcarena in 2005.
APA, Harvard, Vancouver, ISO, and other styles
9

Raphalalani, Avhatakali, Georges-Ivo Ekosse, John Odiyo, Jason Ogola, and Nenita Bukalo. "Trace Element and Stable Isotope Geochemistry of Lwamondo and Zebediela Kaolins, Limpopo Province, South Africa: Implication for Paleoenvironmental Reconstruction." Minerals 9, no. 2 (February 4, 2019): 93. http://dx.doi.org/10.3390/min9020093.

Full text
Abstract:
The aim of the present study was the paleoenvironmental reconstruction of the prevailing environment under which the Lwamondo and Zebediela kaolin deposits were formed. Hence, this study reports deuterium and oxygen stable isotope values and trace and rare earth element concentrations for two samples of kaolin. Upper continental crust-normalised trace-element patterns reveal that large ion lithophile elements and high-field-strength elements are generally depleted in Lwamondo and Zebediela kaolins, whereas transition trace elements are generally enriched in these kaolins. Upper continental crust-normalised rare earth element (REE) patterns show that there is a slight enrichment of heavy REEs (HREEs) compared to light REEs (LREEs) in these kaolins. The δ18O and δD stable isotope values for kaolinite from Lwamondo ranged from 17.4‰ to 19.1‰ and from −54‰ to 84‰, respectively, whereas those values for kaolinite from Zebediela varied from 15.6‰ to 17.7‰ and from −61‰ to –68‰ for δ18O and δD, respectively. The REE patterns and the content of other trace elements indicate ongoing kaolinitisation in the Lwamondo and Zebediela kaolins with minimum mineral sorting. The sources of the kaolins varied from basic to acidic and these were derived from an active margin tectonic setting. Lwamondo kaolin was deposited in an oxic environment whereas Zebediela kaolin was deposited under suboxic/anoxic conditions. Based on the δ18O and δD values of the kaolinite, they formed in a supergene environment at temperatures generally below 40 °C.
APA, Harvard, Vancouver, ISO, and other styles
10

Kroshko, Y. V., M. S. Kovalchuk, H. O. Kuzmanenko, and T. V. Okholina. "STRUCTURAL AND LITHOLOGICAL MODEL OF THE ZHEZHELIV DEPOSIT OF ELUVIAL KAOLIN." Geological Journal, no. 3 (September 29, 2022): 67–80. http://dx.doi.org/10.30836/igs.1025-6814.2022.3.253551.

Full text
Abstract:
This study characterizes the geological structure of the Zhezheliv eluvial kaolin deposit, zoning and material composition of the weathering crust, and the mineral composition and physicochemical characteristics of eluvial kaolins. The relationship between rock-forming oxides and the distribution of the contents of Fe2O3, TiO2 and Al2O3 in the vertical section and through the area were investigated. The content of titanium and iron oxides in the kaolin concentrate and its granulometric composition were characterized, depending on the petrotypes of the weathered parent rocks. Maps of the relationship between isolines of the top surface of eluvial kaolins, isolines of their thickness and isolines of the surface of their base have been compiled. A correlation has been established between the topography of the bottom and top and the thickness of the kaolin deposit. A map of the spatial distribution of kaolin whiteness has been compiled. The vertical distribution of whiteness and Fe2O3 and TiO2 contents was investigated for individual wells in the kaolin deposit. It was found that there is no steady correlation between the content of Fe2O3 and TiO2 in the vertical section. The whiteness index of kaolins in the vertical section depends on the content of the indicated oxides or one of them. Based on the analysis of satellite images at different times, the change in the area of the disturbed geological environment during the deposit development through 2006-2020 was assessed.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Kaolin"

1

Branco, Marta Sofia de Pinho. "Electrophoretic deposition of kaolin." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22591.

Full text
Abstract:
Mestrado em Engenharia de Materiais
A deposição eletroforética (EPD) é uma técnica interessante do ponto de vista de processamento de materiais permitindo a formação de filmes dos mais variados materiais em diferentes substratos condutores. É uma técnica simples, versátil e de baixo custo associado. No presente trabalho, conduziram-se estudos que permitiram estabelecer as condições apropriadas para a produção de filmes espessos de caulino por EPD. Depositaram-se filmes de caulino em verde, com cerca de 5 mg, em três tipos de substrato: aço inoxidável, folha de platina e silício platinizado. Para a identificação das condições de deposição, contribuiu o estudo sistemático das condições de preparação da suspensão de caulino que incluíram a avaliação do potencial zeta de suspensões com o pH da mesma, do efeito da composição do meio suspensor (água, etanol, ou mistura de ambos), do recurso ao iodo como aditivo, e da variação com o tempo da transmitância da luz UV por parte dos diferentes meios suspensores, com ou sem iodo. Os resultados obtidos permitiram concluir que as melhores condições de deposição são as que combinam a adição de alguma água ao etanol, enquanto meio suspensor, e o uso de iodo como aditivo. Os filmes preparados por EPD foram sinterizados a 1200 e 1300 oC, durante 2 h. A microestrutura dos filmes, antes e após sinterização, observada por microscopia eletrónica de varrimento (SEM) permitiu concluir que as partículas de caulino tendem a depositar de uma forma orientada em que as suas superfícies basais se alinham paralelamente ao substrato. Os filmes de caulino sinterizados foram submetidos a ensaios de nanoindentação e determinou-se a sua dureza Vickers e módulo de Young para os quais se obtiveram, respetivamente, 300 MPa e 40 GPa. Este trabalho contribuiu para identificar condições para obter filmes espessos de caulino de cuja a microestrutura anisotrópica se aponta a possibilidade de aceder a propriedades maximizadas segundo determinadas direções o que do ponto de vista das suas aplicações pode abrir novas oportunidades.
Electrophoretic deposition (EPD) is an interesting technique from the point of view of materials processing. The technique allows the formation of films of many different materials on different conductive substrates. Besides that, EPD is a simple, versatile and low cost technique. The studies conducted, in the present work, allowed the establishment of appropriate conditions to produce kaolin thick films by EPD. Green kaolin films with around 5 mg were deposited on three types of substrate: stainless steel, platinum foil and platinized silicon. A systematic study about the preparation conditions of the kaolin suspension contributed to identify the deposition conditions. This study included the assessment of the pH dependence of zeta potential of the suspension and the effect of the suspension media (water, ethanol or a mixture of both) as well as the use of iodine as additive. Transmittance variation of the UV light with time was also assessed for the different suspension media with and without iodine. The obtained results allowed to conclude that the best deposition conditions are those that combine the use some water in the ethanol based suspension media added also with iodine. The kaolin films produced by EPD were sintered at 1200 and 1300 oC for 2 h. The observation of the films microstructure by scanning electron microscopy (SEM), before and after sintering, allowed to conclude that the kaolin particles tend to deposit in an oriented way in which their basal surfaces align parallel to the substrate. The sintered kaolin films were submitted to nanoindentation tests and their Vickers hardness and Young’s modulus was determined as 300 MPa and 40 GPa, respectively. This work contributed to identify the conditions to obtain kaolin thick films of which the anisotropic microstructure is expected the possibility of assessing maximized properties under certain directions. From the point of view of applications, this can open new possibilities
APA, Harvard, Vancouver, ISO, and other styles
2

Li, Qiang, and 李强. "Time effects on artificially cemented kaolin." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208034.

Full text
Abstract:
With the aim to achieve a better understanding of the time-dependent behaviour of structured clays, especially cemented clay, a critical review of the literature and a programme of laboratory testing have been carried out. In order to investigate the time effects on different structured clays, a series of advanced triaxial and oedometer tests were conducted on reconstituted pure kaolin (PK), artificially cemented kaolin (ACK) with different curing periods, and remoulded artificially cemented kaolin (RACK). Strain rate effects were examined in pure kaolin with different degrees of over-consolidation in both undrained and drained shearing. The influence of bond structure on the monotonic stress-strain behaviour of cemented kaolin was investigated on specimens prepared with two different curing stress and curing periods. Tests on pure kaolin and remoulded cemented kaolin were also performed. Strain rate effects on long cured cemented kaolin under low and high confining stresses, with constant rate of straining in pre-peak stage and step-wise change rate of straining in post-peak stage were examined. This was completed by a study of the microstructure of pure kaolin and cemented kaolin specimens before and after tests via scanning electronic microscope. The coupling between stress or strain rate and curing time effects was investigated on cemented kaolin cured for shorter periods. The results have added significant data to the existing database and addressed the relationship between bond structure and time effect. The main conclusions are: ••The viscous type of PK determined is characterized as decaying positive isotache and General TESRA in undrained and drained shearing repectively. The strain rate history does not affect the critical state in both q-p’ and v-ln p’ spaces. ••The addition of cement not only creates new inter-particle bonds but also affects new fabric. The shear strength is dominated by bond structure under low confining stress, and by volume change under high confining stress. ••The viscous type of long-term cured ACK is dependent on the degree of bond structure. It is almost insensitive to strain rate changes when the specimen is stiff, and the apparent “aging” effect dominates resulting in a “negative” rate effect when bond structure is destroyed. A special rate phenomenon called stick-slip seems to occur under the lowest strain rate (0.01%/h) during the pre-peak stage. The RACK shows a TESRA type of viscosity in undrained shearing. ••The short-term cured ACK, in which structuring and rate effects are combined, shows negative rate effects due to the curing under low confining stress and apparent aging under high confining stress. Stick-slip occurs both in pre-peak and post-peak stages, due to different reasons.
published_or_final_version
Civil Engineering
Doctoral
Doctor of Philosophy
APA, Harvard, Vancouver, ISO, and other styles
3

Schultz, Hillary S. "The Effects of Kaolin Particle Film on the Viburnum Leaf Beetle During Container Production of Viburnum Dentatum under Different Levels of Applied Nitrogen." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/SchultzHS2006.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Celes, Josepha D. "Transformation of processed kaolin by plasma magmavication." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/21643.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Elmes, D. R. "Creep and viscosity in two kaolin clays." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372627.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Haghighi, Ali. "Thermo-hydro-mechanical behaviour of Kaolin clay." Thesis, Heriot-Watt University, 2011. http://hdl.handle.net/10399/2479.

Full text
Abstract:
The need for an improved understanding of the effects of temperature on the hydro-mechanical behaviour of compacted clays is important in many applications, such as disposal of high level nuclear wastes, burial of high voltage cables, drilling of deep offshore wells, and clay liners used on landfills. In this thesis, a study of the thermo-hydro-mechanical (THM) behaviour of kaolin clay under different conditions is presented. A series of experimental unsaturated tests was carried out, including temperature and suction controlled oedometer tests, and suction measurements to obtain the soil water retention curves at different temperatures. In order to describe the dependency of the soil water retention curves on temperature, the influences of temperature on the contact angle of menisci and the microstructure of the soil samples were studied. Moreover, Environmental Scanning Electron Microscopy was employed for studying the microstructure of the soil at certain conditions of interest. A new suction and temperature controlled oedometer cell was designed, developed and calibrated for investigating THM behaviour of kaolin clay. The oedometer was used to examine the combined effects of suction and temperature on compressibility and collapse behaviour of the soil. In this thesis, special attention was given to the filter paper methodology for suction measurements at different temperatures. The calibration curve of Whatman No. 42 filter paper was determined at 10, 25 and 50ºC using the vapour equilibrium technique with sodium chloride solutions at different concentrations and the axis translation technique. Based on the experimental data, a unique calibration equation was proposed; taking into account the effect of temperature. The experimental results showed that temperature has a relevant influence on filter paper suction measurement and that misleading results can be obtained if temperature is not taken into account in the calibration equation.
APA, Harvard, Vancouver, ISO, and other styles
7

Le, Grange Monique. "Effect of kaolin applications on pome fruit." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52255.

Full text
Abstract:
Thesis (MScAgric)--Stellenbosch University, 2001.
ENGLISH ABSTRACT: Sunburn is a major problem in the apple industry worldwide. A kaolin product, M-97- 009 (100% kaolin), originally developed for insect control, was evaluated for its efficacy in controlling sunburn on pome fruit. Trials were conducted over two seasons in two different areas of the Western Cape, South Africa. During the first season, 'Royal Gala', 'Fuji' and 'Granny Smith' apples were evaluated in the Koue Bokkeveld. The kaolin was mixed with water and applied to the trees by means of a hand-gun regularly throughout the season. In addition to the effect on sunburn, effects on yield, colour development, snout beetle damage and other defects were determined. Sunburn was reduced on all the cultivars tested, although not significantly on 'Granny Smith'. Inconsistent effects on yield parameters were observed. The applications significantly reduced red colour on 'Fuji', but this problem was rectified by an improved application technique the following season. During the second season, additional apple cultivars and 'Rosemarie' pears were included in the trials. The apple trials were conducted in the Elgin area, and the 'Rosemarie' trial in the Koue Bokkeveld. Surround™ (95% kaolin) was applied to the trees by means of a commercial "blower". The effects on sunburn, yield, colour development and fruit maturity were determined. In contrast to the previous season, sunburn was not reduced on any of the cultivars examined. Yield parameters were not affected except in the case of 'Royal Gala' where the number of fruit was increased, and 'Cripps' Pink' where the number of fruit was reduced. Fruit colour was not affected in the apple cultivars, but chroma of 'Rosemarie' pears was reduced, indicating a less intense colour. The kaolin applications had a variable effect on fruit maturity. The effect of the foliar applications on photosynthetic photon flux density (PPFD), photosynthetic rate, stomatal conductance and transpiration rate was determined. In addition to these spot measurements, photosynthetic light response curves were determined. Measurements were taken on both the inner and outer canopies The applications significantly reduced photosynthetic rates in the inner canopy and reduced the apparent quantum efficiency of leaves on the outer canopy. No significant effect on PPFD was found. It appears that the white coating reflects light and allows less light to penetrate the leaf, thus reducing photosynthesis. Surround™ treatments could not counteract the damaging effects of the high temperatures experienced in the Western Cape during this season and was not effective as a control measure for sunburn. This does not appear to be a commercially viable solution for the sunburn problem and it would be worthwhile to investigate the use of alternative options, such as evaporative cooling.
AFRIKAANSE OPSOMMING: Sonbrand is een van die grootste probleme wat wêreldwyd in die appelbedryf ondervind word. 'n Nuwe produk, M-97-009 (100% kaolien), is oorspronklik ontwikkel vir insekbeheer in geïntegreerde plaagbeheer, maar daar is beweer dat dit moontlik sonbrand op kemvrugte kan verminder. Proewe is oor twee seisoene uitgevoer in die Koue Bokkeveld en ook in die Grabouw-omgewing in die Wes-Kaap. Tydens die eerste seisoen is die effek van M-97-009 op 'Royal Gala', 'Fuji' en 'Granny Smith' appels beoordeel. Die kaolien is met water gemeng en deur die loop van die seisoen met 'n handspuit op die bome gespuit. Die effek van die produk op sonbrand, oesgrootte, vruggrootte, kleurontwikkeling, kalanderskade en ander defekte is bepaal. Sonbrand is op alle kultivars verminder, alhoewel nie betekenisvolop 'Granny Smith' nie. Die effek van kaolien op oesparameters was rue konsekwent nie. kleurontwikkeling op 'Fuji' benadeel, heel moontlik Die toedienings het as gevolg van die toedieningstegniek. Met verbeterde toedieningsmetodes die volgende seisoen, is kleurontwikkeling van 'Fuji' nie benadeel nie. Tydens die tweede seisoen is die effek van kaolien op nog appelkultivars en 'Rosemarie' pere ge-evalueer. Die appelproewe is in Elgin uitgevoer, terwyl die 'Rosemarie'-proefin die Koue Bokkeveld uitgelê is. Surround™ (95% kaolien) is met kommersiële spuitpompe toegedien. Weereens is die effek van die produk op sonbrand, oesgrootte, vruggrootte, kleurontwikkeling en vrugrypheid bepaal. Sonbrand is nie verminder nie. Vruglading tydens oes is nie betekenisvol beïnvloed nie, behalwe in die geval van 'Royal Gala' waar die vruglading verhoog is, en 'Cripps' Pink' waar daar minder vrugte op die gespuite bome was. Die Surround™ toedienings het geen uitwerking op kleur van appels gehad nie, maar het die chromawaarde van 'Rosemarie' pere verlaag, d.w.s die vrugkleur was minder intens. Die kaolienspuite het 'n uiteenlopende effek op vrugrypheid gehad. Fotosintetiese foton vloeddigtheid (FFV), fotosintesetempo, huidmondjieweerstand en transpirasietempo is gemeet en ligreponskurwes van beide die buitenste en binneste blaardak is bepaal. Die Surround™ toedienings het fotosintese van blare ill die binneste gedeelte van die blaardak verminder en die kwantumdoeltreffendheid van blare op die buitenste deel van die blaardak verminder. Geen betekenisvolle effek is op FFV gekry nie. Dit wil voorkom asof die wit laag kaolien op die bome lig weerkaats en veroorsaak dat minder lig na die blaar deurdring. Dit verminder dan die fotsintesetempo. Met die baie warm weer wat in die Wes-Kaap gedurende die tweede seisoen ervaar is, kon die SUITound™behandelings nie sonbrand verhoed nie. Dit wil voorkom asof Surround™ nie 'n baie doeltreffende oplossing in kommersiële boorde sal wees nie. Alternatiewe oplossings, soos byvoorbeeld evaporatiewe verkoeling, saloorweeg moet word.
APA, Harvard, Vancouver, ISO, and other styles
8

McKeown, Ian Patrick. "Adsorption of surfactants from solution onto kaolin." Thesis, Liverpool John Moores University, 1990. http://researchonline.ljmu.ac.uk/4988/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Heß, Viola, and Wolfram Heidenfelder. "Schätze im Geopark: Kaolin – das weiße Gold." Geopark „Porphyrland. Steinreich in Sachsen“ e.V, 2015. https://slub.qucosa.de/id/qucosa%3A36066.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Aguilar-Mamani, Wilson. "Crystallization of NBA-ZSM-5 from kaolin." Doctoral thesis, Luleå tekniska universitet, Kemiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63169.

Full text
Abstract:
ZSM-5 is an aluminosilicate zeolite with high Si/Al ratio with suitable properties for catalysis, ion exchange, adsorption and membrane applications. The main goal of this thesis was to study the growth of ZSM-5 zeolite crystals from inexpensive natural sources of silica and alumina, as well as n-butylamine (NBA) as a low-cost structure directing agent. The first objective of this work was to develop pathways to synthesize ZSM-5 crystals from kaolin clay or diatomaceous earth, two inexpensive natural sources of silica and alumina (Paper I). In the case of kaolin, a heat treatment was used in order to form amorphous metakaolinite. Subsequently, dealumination of the raw materials by acid leaching made it possible to reach appropriate Si/Al ratios and to reduce the amount of impurities. Finally, leached metakaolinite or diatomaceous earth was reacted with sodium hydroxide and NBA. After synthesis optimization, both sources of aluminosilicates were found to behave differently during the course of synthesis and to lead to slightly different reaction products. The final products exhibited Si/Al ratios in the range 10-20. The use of leached diatomaceous earth allowed to reach higher yield of ZSM-5 crystals within comparable synthesis times. However, low amounts of mordenite were inevitably formed as a by-product, which was related to the high calcium content of diatomaceous earth. Therefore, the rest of the thesis focused on the kaolin system. In order to study the growth mechanism of ZSM-5 from leached metakaolinite, a proper methodology to gain local compositional data by energy dispersive spectroscopy (EDS) on aluminosilicates was developed (Paper II). Zeolite A was used as a model system that could be ion-exchanged with various elements. In order to evaluate the reliability of the measurements, inductively coupled plasma-sector field mass spectrometry (ICP-SFMS) and EDS were compared. The EDS method developed in this work resulted in molar ratios very close to theoretical values and was therefore found more reliable than ICP-SFMS. Therefore, the method developed for zeolite A was applied in the rest of the thesis work to study the formation and growth of ZSM-5 crystals. The second part of this work focused on the kaolin system in order to understand the nucleation and growth processes of the ZSM-5 crystals. This system was heterogeneous, due to the formation of a gel upon heating of the synthesis mixture. First, the internal structure of the gel was investigated (Paper III). Second, a kinetic study was performed and compared with microstructural observations (Paper IV). Finally, the mechanisms leading to Al-zoning and dendritical growth of the zeolite crystals were investigated (Paper V). The characterization of the intermediate phases during the different stages of the hydrothermal synthesis were analyzed by different analytical techniques, such as inductively coupled plasma-sector field mass spectrometry (ICP-SFMS), dynamic light scattering (DLS), extreme high resolution-scanning electron microscopy (XHR-SEM), energy dispersive spectroscopy (EDS), high resolution-transmission electron microscopy (HR-TEM), X-ray diffraction (XRD) and nitrogen gas adsorption. These investigations led to several important conclusions: 1) The walls of the gel were shown for the first time to be inhomogeneous and to possess a biphasic internal structure consisting of a mesoporous skeleton of aluminosilicate nanoparticles embedded in a silicate-rich soluble matrix of soft matter. 2) The kinetic study and microstructural evidences indicated that the early crystals were fully embedded inside the gel phase and that crystal growth was retarded, as the formation of the gel occurred simultaneously with the early growth of the crystals. Hence, nucleation and growth appeared to be solution mediated.  3) Finally, the Al zoning of the crystals was related to the biphasic internal structure of the gel, since the silicate-rich matrix was preferentially consumed first. 4) The dendrites present at the surface of the crystals during most of the growth process were shown to be caused by the presence of a web of nanoparticles, most likely originating from the mesoporous skeleton inside the gel. In the future, these findings are expected to lead to optimized synthesis pathways of catalysts with homogeneous properties and to contribute to the development of poor regions in Bolivia.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Kaolin"

1

Raw Materials Research and Development Council (Nigeria). Kaolin. 2nd ed. Abuja, NIgeria]: Raw Materials Research and Development Council, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Rossi, Paul Louis. La montagne de kaolin. Paris: Julliard, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Abeysinghe, P. B. Kaolin in Western Australia. Perth: Western Australia Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pekkala, Yrjö. Assessment of kaolin deposits in Nyeri District, Kenya. [Nairobi]: Republic of Kenya, Ministry of Environment and Natural Resources, Mines and Geological Dept., 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Thurlow, Charles. China clay from Cornwall and Devon: An illustrated account of the modern china clay industry. 3rd ed. St Austell: Cornish Hillside Publications, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nazrul, Islam M. White clay (Kaolin) deposits of Bijaipur area, Netrokona District, Bangladesh. Dhaka: Govt. of the People's Republic of Bangladesh, Geological Survey of Bangladesh, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Mshali, R. S. M. Evaluation of Senzani kaolinitic clay deposit--western sector. Zomba [Malawi]: Ministry of Energy and Mining, Geological Survey Dept., 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Indian Bureau of Mines. Mineral Economics Division. and Indian Bureau of Mines, eds. China clay (Kaolin): A market survey. Nagpur: Mineral Economics Division, Indian Bureau of Mines, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zoltán, Adamis, Williams Richard B, International Labour Organisation, United Nations Environment Programme, World Health Organization, and Inter-Organization Programme for the Sound Management of Chemicals., eds. Bentonite, kaolin, and selected clay minerals. Geneva: World Health Organization, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

H, Murray Haydn, Bundy Wayne M, Harvey Colin C, Keller Walter D, and Clay Minerals Society. Annual meeting,, eds. Kaolin genesis and utilization: (a collection of papers presented at the Keller '90 Kaolin Symposium). Boulder, Col: Clay Minerals Society, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Kaolin"

1

Puterka, Gary J., D. Michael Glenn, George Hangay, Darryl Gwynne, John B. Heppner, Emmett R. Easton, John L. Capinera, and Eugene J. Gerberg. "Kaolin." In Encyclopedia of Entomology, 2075. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_1605.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Duca, Joseph. "Kaolin." In Functional Fillers for Plastics, 221–39. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527605096.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Crowson, Phillip. "Kaolin." In Minerals Handbook 1992–93, 125–29. London: Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-12564-7_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Duca, Joseph. "Kaolin." In Functional Fillers for Plastics, 241–58. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527629848.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Crowson, Phillip. "Kaolin." In Minerals Handbook 1994–95, 135–39. London: Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1007/978-1-349-13431-1_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Crowson, Phillip. "Kaolin." In Minerals Handbook 1996–97, 187–94. London: Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-13793-0_23.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gooch, Jan W. "Kaolin." In Encyclopedic Dictionary of Polymers, 409. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6621.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bährle-Rapp, Marina. "Kaolin." In Springer Lexikon Kosmetik und Körperpflege, 295. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_5527.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Stief, T. "Kaolin Clotting Time." In Lexikon der Medizinischen Laboratoriumsdiagnostik, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49054-9_1656-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Stief, T. "Kaolin Clotting Time." In Springer Reference Medizin, 1312–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-48986-4_1656.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Kaolin"

1

Burns, B., and G. S. Ghataora. "Internal Erosion of Kaolin." In Geo-Denver 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40906(225)6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

ZHANG, X., Y. QIN, Y. PEI, and Z. X. HUANG. "Preparation and Characterization of Ceramizable Kaolin/VMQ and Kaolin/ZB/VMQ Composites." In The 2015 International Conference on Mechanical Engineering and Control Systems (MECS2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814740616_0088.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kosmidi, Dimitra, Chrysa Panagiotopoulou, Panagiotis Angelopoulos, and Maria Taxiarchou. "Thermal Activation of Kaolin: Effect of Kaolin Mineralogy on the Activation Process." In RawMat 2021. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/materproc2021005018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sun, Qinglei, Yang Peng, Hao Cheng, Yun Mou, and Mingxiang Chen. "Direct Ink Printing of Cavities in DPC Ceramic Substrates With Kaolin Pastes for Hermetic Packaging." In ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ipack2019-6616.

Full text
Abstract:
Abstract Fabrication of three-dimensional cavities containing kaolin pastes to be used as direct plated copper (3DPC) substrates ceramics is a very important advancement for electronic packaging of hermetic and ultraviolet light emitting diodes. This work demonstrates usage of pastes consisting of 32–40 wt% of kaolin clay and polyacrylic acid for direct ink printing (DIP) of 3DPC. Rheological and zeta potential tests were performed to determine printability and stability, respectively, of these kaolin pastes. Kaolin content variation had minimum effect on absolute values of the zeta potentials. All pastes had enough stability with the absolute values larger than 30 mV. 40 wt% kaolin solids mass paste was the optimal for DIP due to its excellent shear thinning and viscoelastic properties. Cured 40 wt% kaolin solids mass paste had superior compressive, flexural and bonding strengths. DIP using pastes containing 40 wt% of kaolin is promising for electronic chip integrated hermetic packaging.
APA, Harvard, Vancouver, ISO, and other styles
5

Guatame-Garcia, Adriana, and Mike Buxton. "Visible and infrared reflectance spectroscopy for characterization of iron impurities in calcined kaolin clays." In OCM 2015 - 2nd International Conference on Optical Characterization of Materials. KIT Scientific Publishing, 2015. http://dx.doi.org/10.58895/ksp/1000044906-18.

Full text
Abstract:
Visible (VIS) and ShortWavelength Infrared (SWIR) Reflectance Spectroscopy are used to determine the presence of iron impurities on calcined kaolin. For industrial applications, primary kaolin is calcined by roasting at temperatures of greater than 1100 °C. The presence of iron impurities in the primary kaolin affects the optical properties of the processed calcined clay. Spectral analysis in the VIS and SWIR ranges allows the analysis of iron phases in kaolin. In the kaolin calcination sequence, features in the VIS range change as a consequence of the variations in iron oxidation. Some of these variations are related to iron released in the breakdown of the kaolinite crystal lattice, which is identified by the changes in the SWIR features. The spectral characterization of the calcination of kaolin contributes to the understanding of these processes. Its application would enable more precise control of calcined kaolin properties and help to optimise the calcination process.
APA, Harvard, Vancouver, ISO, and other styles
6

Mannhalter, C., and E. Deutsch. "IMMUN0BL0TTING STUDIES OF THE INTERACTION OF PLASMA-FACT0R XI WITH KAOLIN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644806.

Full text
Abstract:
An immunoblotting technique with a commercially available, polyclonal Factor XI antibody was developed for Factor XI in plasma samples.Aliquots containing equivalents of 6 ul plasma were treated with appropriate amounts of SDS, electrophoresed on 7.5 % SDS-PAGE and immunoblotted onto nitrocellulose membranes. The blots were quenched with low fat milk and incubated with 2 % Factor Xl-antiserum, which was preadsorbed with Factor XI deficient plasma. The bound Factor XI antibody was identified by incubation with 125I-labelled Factor XI followed by autoradiography. Using this method, the interaction of Factor XI with kaolin was studied in plasma. Normal plasma was incubated with kaolin for various time periods. Aliquots were removed, centrifuged and the plasma supernatant and the kaolin pellets were examined after treatment with SDS on 7.5 % SDS-PAGE followed by immunoblotting.Factor XI was adsorbed onto kaolin and, after five minutes no Factor XI antigen was present in the plasma supernatant.However, after twenty minutes a band corresponding to Factor XI became again visible in the plasma, indicating a release of Factor XI from the kaolin surface. The electrophoretic results obtained with the SDS-eluates of the kaolin pellets confirm these observations. After thirty seconds a significant amount of Factor XI was present on the kaolin, and it exhibited the same electrophoretic mobility as Factor XI in the starting material. After ten minutes incubation, the protein concentration adsorbed onto the kaolin had increased. However, after twenty minutes clearly less Factor XI was present on the kaolin than after ten minutes.Thus, our results indicate that Factor XI is quickly adsorbed from plasma onto kaolin. However, Factor XI or XIa do not remain surface-bound but are released into solution.
APA, Harvard, Vancouver, ISO, and other styles
7

Fang, Jin, Peide Sun, Yi Zhang, Qi Wang, Wanggang Ma, Fangming Jin, Qi Zhou, and Bing Wu. "Synthesis of New Kaolin Molecular Sieves from Kaolin and Its Adsorption of NH[sub 4]+]." In 2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy. AIP, 2010. http://dx.doi.org/10.1063/1.3529300.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tran, Khanh-Quang, M. Kristiina Iisa, Britt-Marie Steenari, Oliver Lindqvist, Magnus Hagstro¨m, and Jan B. C. Pettersson. "Capture of Alkali Metals by Kaolin." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-083.

Full text
Abstract:
Alkali metals present in biomass fuels may cause increased bed agglomeration during fluidized bed combustion. In worst case this may lead to complete defluidization of the bed. Other problems caused by alkali metals include increased fouling and slagging. One possibility to reduce the impact of alkali metals is to add sorbents, e.g. aluminosilicates, to the bed for the capture of alkali metals. In the current investigation, the capture of vapor phase potassium compounds by kaolin was investigated in a fixed bed reactor. The reactor consisted of an alkali metal source placed at a variable temperature from which gaseous potassium compounds were generated, a fixed bed holding the kaolin, and an on-line detector for the alkali metal concentration. The on-line alkali metal detector was based on ionization of alkali metals on hot surfaces and is capable of detecting alkali metals down to ppb levels. This makes it possible to perform experiments at alkali metal concentrations relevant to fluidized bed combustion of biomass fuels. In the experiments, KCl was used as the alkali metal source with inlet concentrations of 0.5–3.5 ppm. The experiments were performed at reactor temperatures of 800–900°C and a contact time of 0.26 s. The capture efficiencies of KCl were always above 97%. The capture efficiency was somewhat higher in oxidizing than in reducing gas atmospheres. In the oxidizing gas atmosphere, the conversion was slightly higher with H2O addition than without. The capture efficiency decreased slightly as temperature or KCl concentration was increased.
APA, Harvard, Vancouver, ISO, and other styles
9

"Pozzolanic behavior of thermally activated kaolin." In "SP-132: Fly Ash, Silica Fume, Slag, and Natural Pozzolans and Natural Pozzolans in Concrete - Proceedings Fourth Interna". American Concrete Institute, 1992. http://dx.doi.org/10.14359/2133.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hill, Jane P. "Direct Heat Cogeneration Applications for Kaolin Producers." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-179.

Full text
Abstract:
Direct heat cogeneration using gas turbines presents an unusually attractive means of supplying two end products when both are required simultaneously. Most cogeneration applications involve steam as the thermal end product. While steam has many industrial and commercial uses, the conversion of thermal output to usable steam involves losses in the heat recovery steam generator (HRSG). When the heat rejected by a gas turbine can be used directly, system losses can be minimized. One such application exists in the kaolin industry. Kaolin is a white alumina-silicate clay used in many products, including paper, medicines, plastics and paints. One step in producing kaolin requires large spray dryers, the heat for which can be supplemented by cogeneration. This study outlines conditions necessary to achieve economic viability with cogeneration and suggests ways to maximize economic benefits. Risks associated with cogeneration ventures are also discussed.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Kaolin"

1

HANSEN, ERICH. PHYSICAL PROPERTIES OF KAOLIN/SAND SLURRY USED DURING SUBMERSIBLE MIXER PUMP TESTS AT TNX. Office of Scientific and Technical Information (OSTI), November 2005. http://dx.doi.org/10.2172/882706.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

HANSEN, ERICHK. Physical Properties of Kaolin/Sand Slurry Used During Submersible Mixer Pump Tests at TNX. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/829909.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Burns, Carolyn A., Phillip A. Gauglitz, and Renee L. Russell. Shear Strength Correlations for Kaolin/Water Slurries: A Comparison of Recent Measurements with Historical Data. Office of Scientific and Technical Information (OSTI), January 2010. http://dx.doi.org/10.2172/971099.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Eyler, L. L., and L. A. Mahoney. Computer simulation of mobilization and mixing of kaolin with submerged liquid jets in 25,000-gallon horizontal cylindrical tanks. Office of Scientific and Technical Information (OSTI), March 1995. http://dx.doi.org/10.2172/38997.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Arnett, Clint, Justin Lange, Ashley Boyd, Martin Page, and Donald Cropek. Expression and secretion of active Moringa oleifera coagulant protein in Bacillus subtilis. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41546.

Full text
Abstract:
Cationic polypeptide proteins found in the seeds of the tropical plant Moringa oleifera have coagulation efficiencies similar to aluminum and ferric sulfates without their recalcitrant nature. Although these proteins possess great potential to augment or replace traditional coagulants in water treatment, harvesting active protein from seeds is laborious and not cost-effective. Here, we describe an alternative method to express and secrete active M. oleifera coagulant protein (MO) in Bacillus subtilis. A plasmid library containing the MO gene and 173 different types of secretory signal peptides was created and cloned into B. subtilis strain RIK1285. Fourteen of 440 clones screened were capable of secreting MO with yields ranging from 55 to 122 mg/L of growth medium. The coagulant activity of the highest MO secreting clone was evaluated when grown on Luria broth, and cell-free medium from the culture was shown to reduce turbidity in a buffered kaolin suspension by approximately 90% compared with controls without the MO gene. The clone was also capable of secreting active MO when grown on a defined synthetic wastewater supplemented with 0.5% tryptone. Cell-free medium from the strain harboring the MO gene demonstrated more than a 2-fold reduction in turbidity compared with controls. Additionally, no significant amount of MO was observed without the addition of the synthetic wastewater, suggesting that it served as a source of nutrients for the effective expression and translocation of MO into the medium.
APA, Harvard, Vancouver, ISO, and other styles
6

Gauglitz, P. A., and J. T. Aikin. Waste behavior during horizontal extrusion: Effect of waste strength for bentonite and kaolin/ludox simulants and strength estimates for wastes from Hanford waste tanks 241-SY-103, AW-101, AN-103, and S-102. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/565570.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, H. Thermal conductivity Measurements of Kaolite. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/885883.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

McNabb, J. Kaon Filtering For CLAS Data. Office of Scientific and Technical Information (OSTI), January 2001. http://dx.doi.org/10.2172/774088.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hadavand, Haleh K. The Measurement of CP Asymmetries in the Three-Body Charmless Decay Neutral B Meson Decays to Neutral Kaon(S) Neutral Kaon(S) Neutral Kaon(S). Office of Scientific and Technical Information (OSTI), March 2006. http://dx.doi.org/10.2172/878354.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Murray, M. Kaon and pion interferometry. Final report. Office of Scientific and Technical Information (OSTI), December 1998. http://dx.doi.org/10.2172/307888.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Kaolin' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography