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Relevant bibliographies by topics / Carbonate component

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Academic literature on the topic 'Carbonate component'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Carbonate component"

1

Nikiforov, Anatoly V., Elena O. Dubinina, Nikolay A. Polyakov, Amina M. Sugorakova, and Aylan K. Khertek. "Influence of Host Marble Rocks on the Formation of Intrusive Alkaline Rocks and Carbonatites of Sangilen (E. Siberia, Russia)." Minerals 11, no. 7 (2021): 666. http://dx.doi.org/10.3390/min11070666.

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The study of the O and C isotope composition of calcite from nepheline syenites, ijolites and carbonatites of the Chik intrusion and the intrusions of the Erzin–Tarbagatay group of Sangilen (Eastern Siberia, Russia) showed derivation from alkaline melts enriched with a carbonate component from the host marbleized sedimentary rocks. The calculations showed that about 40% of the initial mass of carbonates involved in the interaction with silicate melts have remained after decarbonation. During the assimilation of the carbonate, an oxygen isotope exchange took place between the residual carbonate

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Wang, Xiao-Jun, Li-Hui Chen, Albrecht W. Hofmann, et al. "Recycled ancient ghost carbonate in the Pitcairn mantle plume." Proceedings of the National Academy of Sciences 115, no. 35 (2018): 8682–87. http://dx.doi.org/10.1073/pnas.1719570115.

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The extreme Sr, Nd, Hf, and Pb isotopic compositions found in Pitcairn Island basalts have been labeled enriched mantle 1 (EM1), characterizing them as one of the isotopic mantle end members. The EM1 origin has been vigorously debated for over 25 years, with interpretations ranging from delaminated subcontinental lithosphere, to recycled lower continental crust, to recycled oceanic crust carrying ancient pelagic sediments, all of which may potentially generate the requisite radiogenic isotopic composition. Here we find that δ26Mg ratios in Pitcairn EM1 basalts are significantly lower than in n

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Rosatelli, G., F. Wall, and M. J. Le Bas. "Potassic glass and calcite carbonatite in lapilli from extrusive carbonatites at Rangwa Caldera Complex, Kenya." Mineralogical Magazine 67, no. 5 (2003): 931–55. http://dx.doi.org/10.1180/0026461036750152.

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AbstractThe ∽16 Ma Rangwa Caldera Complex, part of the large Kisingiri nephelinite-carbonatite volcano, Homa Bay District, western Kenya (0º34’S; 34º09’E) contains carbonatitic lapilli and ash tuffs, agglomerate and tuffisite, and a number of intrusive calcite carbonatites. A detailed petrographic and electron microprobe study has been performed on 20 fresh samples from the collection at The Natural History Museum, London.Most of the juvenile lapilli and ash particles are either predominantly composed of devitrified silicate glass (now biotite/phlogopite but probably also originally potassic s

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Ren, Fu Zeng, and Yang Leng. "Carbonated Apatite, Type-A or Type-B?" Key Engineering Materials 493-494 (October 2011): 293–97. http://dx.doi.org/10.4028/www.scientific.net/kem.493-494.293.

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Carbonated apatite, the basic mineral component in human hard tissues and an important bioceramic material, has been extensively studied. However, its atomic arrangements in apatite crystal structure and its experimental characterization are still not lack of debating. We analyzed infrared (IR) vibrational spectroscopy for carbonated apatite determinations, by comparatively studying the IR spectra of hydroxyapatite and of surface carbonate absorption, biological apatites (human enamel, human cortical bone, and two animal bones) and carbonated apatite. The carbonated apatite samples were sythes

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Arefiev, Anton V., Anton Shatskiy, Altyna Bekhtenova, and Konstantin D. Litasov. "Phonolite-Carbonatite Liquid Immiscibility at 3–6 GPa." Minerals 13, no. 3 (2023): 443. http://dx.doi.org/10.3390/min13030443.

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Liquid immiscibility plays an important role in the formation of carbonatites and associated alkaline Si-undersaturated magmas. Experiments in the sodium carbonate-aluminosilicate systems suggest that the carbonate-silicate miscibility gap is limited by crustal and shallow mantle pressures (up to 2.5 GPa). Unlike in the potassium-rich carbonate-aluminosilicate systems, the carbonate-silicate miscibility gap was established at pressures of 3.5–6 GPa. It is therefore interesting to elucidate the immiscibility range under intermediate pressures, corresponding to 100–200 km depths. Here we conduct

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Dubinina, E. O., A. S. Morozova, I. T. Rass, and A. S. Avdeenko. "OXYGEN ISOTOPE FRACTIONATION IN THE SILICATE-CARBONATE SYSTEM DURING THE ROCK FORMATION OF THE KOVDOR MASSIF (KOLA PENINSULA)." Доклады Российской академии наук. Науки о Земле 512, no. 2 (2023): 212–18. http://dx.doi.org/10.31857/s268673972360145x.

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For the first time the δ18O values both in carbonate and non-carbonate (Ol, Phl, Mt) components of the rocks (calcite carbonatites, phoscorites, ijolites, turyaites) of the Kovdor massif were studied to clarify the role of contamination processes, retrograde exchange, and high-temperature fractionation in the igneous system. It has been established that the processes of crustal contamination are not recorded in the isotopic characteristics of the silicate part of the rocks, and the δ18О values of olivine, phlogopite, and magnetite are lowered compare to the compositions attributed to equilibri

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Azzaro, E., A. Bellanca, and R. Neri. "Mineralogy and geochemistry of Mesozoic black shales and interbedded carbonates, southeastern Sicily: evaluation of diagenetic processes." Geological Magazine 130, no. 2 (1993): 191–202. http://dx.doi.org/10.1017/s0016756800009857.

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AbstractUpper Triassic/Lower Jurassic organic-rich shales and interbedded carbonates (Rhaetian → Sinemurian) are widespread in the subsurface of southeastern Sicily where important oil fields have been found hosted in Triassic reservoirs. Core samples from wells drilled offshore and onshore were studied from petrographie and geochemical viewpoints.In the Hettangian/Sinemurian shale-carbonate sequences, which accumulated in a rapidly subsiding basin, the micritic aragonitic mud is still largely preserved. Mixed-layer I/S has remained randomly interstratified to a depth > 4000 m. Diagenetic c

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Mitchell, Neil C., Rui Quartau, Sandra Moreira, et al. "An equation for deriving spatial variations in carbonate production rates from sediment deposition rates and dilution: Application to Santa Maria Island, Azores." Journal of Sedimentary Research 92, no. 11 (2022): 1003–21. http://dx.doi.org/10.2110/jsr.2022.006.

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Abstract Knowledge of how carbonates are produced on shelves is needed for working out how these “carbonate factories” generate stratigraphy by providing particles for potential export or local deposition. Production rates can be derived straightforwardly in low-energy environments from one-dimensional analysis (age–depth variations) but rates are less easily derived for high-energy hydrodynamical environments where particles are transported away from their sites of production. This particularly affects knowledge of spatial variations in production rates, needed for working out controlling inf

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Shen, Zhanhui, Jialu Shi, Shuzhan Zhang, Jing Fan, and JianSheng Li. "Effect of optimized three-component antiscalant mixture on calcium carbonate scale deposition." Water Science and Technology 75, no. 2 (2016): 255–62. http://dx.doi.org/10.2166/wst.2016.512.

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The mixture of 1-hydroxyethane-1,1-diphosphonic acid (HEDP), and polyacrylic acid (PAA) and synthesized hydrolyzed polymaleic anhydride (HPMA) was optimized by using simplex lattice of Design-Expert software through calcium carbonate precipitation method. The optimum mass ratio of HEDP, PAA and synthesized HPMA was obtained at 10/10/80, which showed excellent performance on controlling calcium carbonate deposition. The antiscale efficiency of the optimum mixture was 84% and 95%, respectively, in the calcium carbonate precipitation test and the calcium carbonate scale deposit test. The optimum

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Jarot, Raharjo, Andanastuti Muchtar, Wan Ramli Wan Daud, Norhamidi Muhamad, and Edy Herianto Majlan. "Fabrication of Dense Composite Ceramic Electrolyte SDC-(Li/Na)₂CO₃." Key Engineering Materials 447-448 (September 2010): 666–70. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.666.

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Composite electrolytes made of samarium-doped cerium (SDC, Ce0.8Sm0.2O1.9) and (67 mol% Li/ 33mol% Na)2CO3 carbonate salts were investigated in relation to their structure, morphology and porosity of the electrolyte. The fabrication of the SDC–(Li/Na)2CO3 composite electrolytes were achieved in two steps: step (1) preparation of the samarium-doped cerium powders by sol-gel; step (2) mixing of the samarium-doped cerium with carbonates in various compositions by solid state reaction. The electrolyte pellets were compacted at different pressures (25 and 50 MPa) and sintered at 600oC, 700oC and 80

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Dissertations / Theses on the topic "Carbonate component"

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Woodward, Stephen M. "PRINCIPAL COMPONENT ANALYSIS OF SEDIMENT DEPOSITED IN THE VILLAGE OF TITIANA FROM THE SOLOMON ISLANDS TSUNAMI OF APRIL 2, 2007." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1239917497.

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Dasgupta, Jaydip. "The effect of carbonated soft drink components on isolated detrusor muscle contraction." Thesis, University of Leicester, 2007. http://hdl.handle.net/2381/29857.

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The objective of our study was to investigate the hypothesis that carbonated soft drink components modulate detrusor muscle contraction. Strips of rat detrusor muscle were placed in an organ bath and stimulated with electrical field stimulation (EFS) in the absence and presence of atropine, and with alpha, beta methylene ATP, potassium, calcium and carbachol. The responses were repeated in the presence of carbonated soft drink components and the whole carbonated soft drink. The artificial sweeteners, ascorbic acid and critic acid (10-7 M to 10-2 M) enhanced the contractile response to 10 Hz EP

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Utami, Dwi Amanda [Verfasser], Peter [Akademischer Betreuer] Kukla, and Miriam [Akademischer Betreuer] Pfeiffer. "Modern, equatorial carbonates from Kepulauan Seribu, Indonesia : facies, isotope geochemistry, and microplastic as a sedimentary component / Dwi Amanda Utami ; Peter Kukla, Miriam Pfeiffer." Aachen : Universitätsbibliothek der RWTH Aachen, 2021. http://d-nb.info/1235180239/34.

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Roux-Levy, Philippe. "Nanostructures de carbone dédiées aux interconnexions hautes fréquences." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0102/document.

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A extrêmement hautes fréquences, les applications électroniques vont être confrontées à des challenges liés à la réduction des dimensions et la compacité des systèmes. Les limites physiques des matériaux conventionnels étant atteintes, de nouvelles alternatives sont nécessaires dans le domaine du nano-packaging. De nouveaux matériaux ont été étudiés pour remplacer les matériaux conventionnels. Parmi eux, le nanotube de carbone démontre une excellente conductivité électrique et thermique ainsi qu’une résistance physique extraordinaire. Il est donc un candidat de choix pour des applications comm

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Rodrigues, Fábio Wilson Pinto. "Recuperação de componentes de metal duro por projeção térmica." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15787.

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Mestrado em Engenharia Física<br>The main objective of this work is the development of a hardmetal components (WC-6%Co) recovery method by thermal deposition process. The thermal deposition technique used was HVOF (high velocity oxygen-fuel). The HVOF enables depositions of thick coatings (100-500 µm) with low porosity levels, high hardness and excellent adhesion. Before deposition, hardmetal samples with different geometries (plates and cylinders) were finished in order to have different roughness. The influence of these parameters in adhesion was studied. After this step, different re-sinter

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Papaix, Claire. "Mise en œuvre des instruments de politique publique allant dans le sens d’une mobilité bas carbone des personnes en milieu urbain." Thesis, Paris Est, 2015. http://www.theses.fr/2015PEST0059.

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Cette thèse s'intéresse à la réconciliation entre le défi mondial du changement climatique et les solutions locales et sectorielles qu'il convient de bien articuler pour contribuer, efficacement, équitablement et de la manière la plus acceptable, à la réduction des émissions de CO2. Plus précisément, nous étudions les conditions pour une mise en place réussie de la politique climatique à l'échelle de la mobilité urbaine des personnes<br>This PhD thesis deals with the reconciliation of the global challenge that is climate change and the local and sectoral solutions that need to be accurately de

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Zorica, Panić. "Утицај газираних пића на тврда зубна ткива - in vitro студија". Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107189&source=NDLTD&language=en.

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Značajan porast prevalence dentalnih erozija u savremenom dru&scaron;tvu, zahteva sve vi&scaron;e pažnje ka  istraživanju njihove etiologije i preventivnih mera koje se mogu preduzeti. Cilj ove studije bio je da se ispita erozivni potencijal gaziranih napitaka i njihov uticaj na zubna tkiva, tokom različitih vremenskih intervala.Stepen kiselosti izražen pH vrednostima za svaki ispitivani napitak (gaziranu vodu &bdquo;Knjaz Milo&scaron;“, Coca-Cola-u i Schweppes Bitter Lemon), određen je odmah po otvaranju ambalaže sa napitkom, nakon 5 i 60 minuta kao i nakon 12 i 24 sata od potapanj

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Maurice, Isabelle. "Mise en place du volume et dépôt de composés carbonés et azotés au cours de la croissance de la feuille de fétuque élevée (Festuca arundinacea Schreb. )." Vandoeuvre-les-Nancy, INPL, 1997. http://docnum.univ-lorraine.fr/public/INPL_T_1997_MAURICE_I.pdf.

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La croissance foliaire est une composante du rendement particulièrement importante chez les graminées fourragères, tant sur le plan de la quantité que sur le plan de la qualité de la biomasse produite. Nous avons donc étudié la croissance foliaire du point de vue de la mise en place des dimensions et des flux de carbone et d'azote, depuis le moment ou la feuille en croissance émerge des gaines des feuilles précédentes jusqu'à la fin de la croissance en longueur. La largeur et l'épaisseur moyenne de la feuille varient de manière importante entre la base et la pointe de la feuille. Elles sont gé

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Leontyev, Anton. "Laser decontamination and cleaning of metal surfaces : modelling and experimental studies." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00661695.

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Metal surface cleaning is highly required in different fields of modern industry. Nuclear industry seeks for new methods for oxidized surface decontamination, and thermonuclear installations require the cleaning of plasma facing components from tritium-containing deposited layer. The laser ablation is proposed as an effective and safe method for metal surface cleaning and decontamination. The important factor influencing the laser heating and ablation is the in-depth distribution of laser radiation. The model of light propagation in a scattering layer on a metal substrate is developed and appl

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Martins, Cristel Jesus. "Caracterização organocomposicional (betume e querogénio) de uma série carbonatada da Bacia Lusitânica: Formação de Cabaços." Master's thesis, 2014. http://hdl.handle.net/10316/98862.

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Dissertação de Mestrado em Geociências, Geologia do Petróleo, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.<br>O presente trabalho consiste na caracterização petrográfica e geoquímica da matéria orgânica da Formação de Cabaços de Idade Jurássico superior (Oxfordiano), importante geradora de hidrocarbonetos na Bacia Lusitânica (Margem Ocidental Ibérica). Esta unidade é composta por calcários betuminosos evidenciando, por vezes, níveis abundantes de lignite. Foram feitas análises de palinofácies, teor de Carbono Orgânico Total (COT) e de enxofre, Resíduos Inso

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Books on the topic "Carbonate component"

1

Smith, W. Soil degradation risk indicator: Organic carbon component. Agriculture and Agri-Food Canada, 1997.

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United States. National Aeronautics and Space Administration., ed. Analysis of minerals containing dissolved taraces of the fluid phase components "water" and "carbon dioxide": Final report submitted to the NASA Ames Research Center for NASA cooperative agreement NCC 2-446. SETI Institute, 1991.

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Sedimentation as a three-component system: Organic carbon, carbonate, noncarbonate. Springer-Verlag, 1993.

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(Editor), E. Insalaco, P. W. Skelton (Editor), and T. J. Palmer (Editor), eds. Carbonate Platform Systems: Components and Interactions (Geological Society Special Publication). Geological Society of London, 2001.

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Vaughan, David. 1. The mineral world. Oxford University Press, 2014. http://dx.doi.org/10.1093/actrade/9780199682843.003.0001.

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Minerals are the fundamental components of the Earth. ‘The mineral world’ describes the fields of mineralogy and crystallography that study them. There are approximately 4,400 known minerals, but the ‘big ten’ minerals that are most abundant in the rocks of the Earth’s crust and Upper Mantle are calcite, quartz, olivines, pyroxenes, amphiboles, muscovite, biotite, orthoclase, albite, and anorthite. The two essential characteristics of any mineral are its chemical composition and its crystal structure. Minerals can be assigned to one of seven crystal classes depending on their elements of symme

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Clarke, Andrew. Water. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199551668.003.0005.

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Liquid water is essential for life, and a metabolically active cell is ~70% water. The physical properties of liquid water, and their temperature dependence, are dictated to a significant extent by the properties of hydrogen bonds. From an ecological perspective, the important properties of liquid water include its high latent heats of fusion and vapourisation, its high specific heat, the ionisation, low dynamic viscosity and high surface tension. The solubility in water of oxygen, carbon dioxide and the calcium carbonate used to build skeletons in many invertebrates groups all increase with d

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Murray, James W. Aquatic Geochemical Oceanography. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780191853241.001.0001.

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Abstract This book is intended as a text for advanced undergraduate and graduate level courses in Aquatic Chemistry, Marine Chemistry and Geochemistry and as a reference for marine geochemists. There is a need for a teaching book that integrates principles and basic tools of aquatic chemistry and ocean distributions, with a geochemical focus. There is a core body of fundamental knowledge that forms the backbone that can be built on and this should be taught first. Strengthening the core aquatic chemical skill set and obtaining a solid background in previous research are two of the main tools t

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Jovic, Sebastián Miguel. Geología y metalogénesis de las mineralizaciones polimetálicas del área El Tranquilo (Cerro León), sector central del Macizo del Deseado, provincia de Santa Cruz. Editorial de la Universidad Nacional de La Plata (EDULP), 2010. http://dx.doi.org/10.35537/10915/4346.

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La presente investigación tiene como eje principal el estudio detallado de las mineralizaciones y la geología de un área del Macizo del Deseado con características geológicas y metalogénicas únicas. La elección del área del El Tranquilo o también conocido como “anticlinal” El Tranquilo, como zona de estudio, se ha basado en el reducido conocimiento y la presencia características atípicas en las mineralizaciones y la escasa representación, en el Macizo del Deseado, de las rocas y unidades geológicas aflorantes. La investigación ha sido realizada en tres etapas: una primera con recopilación de a

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Book chapters on the topic "Carbonate component"

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Koerner, George R. "Calcium Carbonate Content of Various Bentonites Used in GCLs." In Current and Future Practices for the Testing of Multi-Component Geosynthetic Clay Liners. ASTM International, 2013. http://dx.doi.org/10.1520/stp156220120092.

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Lu, Nu, Xi-li Deng, Ya-jie Bai, et al. "Miscibility Evaluation for Rich Gas Flooding in Low-Permeability Carbonate Reservoirs Based on Component Characteristics." In Springer Series in Geomechanics and Geoengineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-5158-0_94.

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Li, Xi-ning, Xiao-dong Cheng, Peng Qu, Jia-peng Wu, and Yi-jie Jin. "Reservoir Identification and Classification Based on Principal Component Analysis and Supervised Neural Network in Carbonate Rocks." In Springer Series in Geomechanics and Geoengineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0479-8_25.

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Al-Dousari, Ali, and Muntha Bahbahani. "Mineralogy (XRD)." In Atlas of Fallen Dust in Kuwait. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66977-5_4.

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Abstract The two main particle size components of the dust samples were subjected to mineralogical analysis to identify the mineral constituents and determine their frequency percentage in each textural class; the fine sand (particle size between 0.125 and 0.063 mm) and Mud (less than 0.063 mm). The average percentage of minerals was mapped out for each season i.e. March, June, September and December 2010 showing the high and low mineral concentration in areas in Kuwait covering the mineral concentrations of Calcite, Carbonate, clay minerals, dolomite, feldspars, and quartz.

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Quesnel, Benoît, Christophe Scheffer, and Georges Beaudoin. "The Light Stable Isotope (Hydrogen, Boron, Carbon, Nitrogen, Oxygen, Silicon, Sulfur) Composition of Orogenic Gold Deposits." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_10.

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AbstractOrogenic gold deposits formed in various terranes of most ages since the Paleoarchean and generally consist of quartz veins hosted in shear zones formed at the ductile brittle transition under greenschist to lower amphibolite metamorphic conditions. Vein mineralogy is dominated by quartz with various amounts of silicates, carbonates, phyllosilicates, borates, tungstates, sulfides, and oxides. The isotopic composition of these minerals and fluid inclusions has been investigated since the 1960s to constrain the characteristics of orogenic fluid systems involved in the formation of gold d

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True, Mary B., and Oliver C. Zafiriou. "Reaction of Br2-Produced by Flash Photolysis of Sea Water with Components of the Dissolved Carbonate System." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0327.ch008.

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Absar, Nurul, Mohd Qaim Raza, Sminto Augustine, Shreyas Managave, D. Srinivasa Sarma, and S. Balakrishnan. "Trace, Rare-Earth Elements and C, O Isotope Systematics of Carbonate Rocks of Proterozoic Bhima Group, Eastern Dharwar Craton, India: Implications for the Source of Dissolved Components, Redox Condition and Biogeochemical Cycling of Mesoproterozoic Ocean." In Society of Earth Scientists Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89698-4_13.

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Huston, David L., Robert B. Trumbull, Georges Beaudoin, and Trevor Ireland. "Light Stable Isotopes (H, B, C, O and S) in Ore Studies—Methods, Theory, Applications and Uncertainties." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_8.

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AbstractVariations in the abundances of light stable isotopes, particularly those of hydrogen, boron, carbon, oxygen and sulfur, were essential in developing mineralization models. The data provide constraints on sources of hydrothermal fluids, carbon, boron and sulfur, track interaction of these fluids with the rocks at both the deposit and district scales, and establish processes of ore deposition. In providing such constraints, isotopic data have been integral in developing genetic models for porphyry-epithermal, volcanic-hosted massive sulfide, orogenic gold, sediment-hosted base metal and

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Stanton, R. L. "Manganese." In Ore Elements in Arc Lavas. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198540502.003.0016.

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Abstract Manganese is a commonly prominent, but erratically occurring, component of exhalative ores. It may appear (usually as complex mixed oxides, but also as silicate and carbonate and as a component of some sulphides) as the dominating element of exhalative sediments, and a number of important manganese ore deposits are of this nature. It also occurs, as a constituent of iron manganeserich exhalites, as an associate of, but separate from, some base metal sulphide ores; and in other instances constitutes an important component of the sulphide orebody itself.

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Yusupova, A. A., L. R. Baraeva, and G. A. Medvedeva. "Obtaining a Sulfur Composite Material Based on Carbonate-Containing Waste." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde230768.

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A significant group of man-made products consists of mineral sludge formed as part of the process of chemical preparation and clarification of water at the energy sector enterprises. Generally, mineral slimes are ultra-dispersed heterogeneous systems that precipitate during subsequent coagulation and dewatering and, under certain circumstances, form solidified structures. The high dispersion and stable chemical composition of certain sludges provide significant prospects for their use as microfillers and hydration activators, as well as for structure formation of composite materials. At the pr

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Conference papers on the topic "Carbonate component"

1

Singh, P., L. Paetsch, and H. C. Maru. "Corrosion Prevention in Molten Carbonate Fuel Cells." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86087.

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Abstract Molten carbonate fuel cell components have been found sometimes to experience accelerated corrosion in the presence of molten electrolyte and fuel and oxidant gases. Development of long-term cost effective cell component materials hence plays an important role in the commercialization of fuel cell power plants. Thermodynamically stable coatings and corrosion resistant materials have been based on accelerated corrosion tests. Aluminum rich wet seal coatings have also been to minimize wet seal corrosion and electrolyte migration.

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Orfield, Mary L., and David A. Shores. "The Dissolution of NiO in Molten Carbonate Mixtures." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86088.

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Abstract The dissolution of transition metal oxides in molten carbonates is of interest for studies of hot corrosion and of the degradation of cathodes in molten salt fuel cells. This dissolution is generally believed to be a function of the basicity of the solvent salt, and consequently an understanding of the relationship between basicity and solubility of metal oxides is important. When the solvent is a mixture of salts, the basicity is regarded as a common ionic activity which satisfies the dissociation constants of both component carbonates. A method for calculating basicity similar to th

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Lu, Peng, Tao Chen, and Qiwei Wang. "Kinetic Approach to Predict Iron Carbonate Preciptation During Acid Stimulation." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16769.

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Abstract In this work, an advanced numerical geochemical method, reactive transport modeling (RTM), is applied to simulate the iron carbonate formation during and post-acid stimulation. The code Toughreact is used for the prediction of the dynamic processes of reservoir fluid composition, and porosity and permeability alteration during and after stimulation treatment. This allows an insight into the spatial and temporal distribution of iron carbonate precipitation. Results of an acid treatment scenario in a sweet carbonate reservoir demonstrate that iron carbonate formation is a corrosion indu

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Ciolkowski, Michal, and Anne Neville. "A Systematic Scale-corrosion Study of a Combined Inhibitor in Scale-corrosion Environment via Experimental Design." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3960.

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Abstract The scale-corrosion performance of combined inhibitors for oilfield has been assessed under scale-corrosion conditions in a newly developed bubble cell/jar test. The general corrosion of carbon steel X65, localised corrosion, bulk scale precipitation and surface scale deposition have been determined by various techniques (Linear Polarisation Resistance, contact 3D profiler, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Analysis (EDX), X-ray diffraction (XRD) and Turbidity-meter). The parameters used in this study are temperature, supersaturation ratio with respect to

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Kriel, B. G., C. A. Lacey, and R. H. Lane. "The Effect of Soluble Iron on the Performance of Scale Inhibitors in the Inhibition of Calcium Carbonate Scales." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94044.

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Abstract Calcium carbonate deposition, a common problem in oil production, is often controlled by application of commercially available scale inhibitors. Aqueous iron (II) is a minor component of most oil field brines but is rarely incorporated into scale inhibitor studies due to its infrequent occurrence at elevated concentrations and the procedural difficulties associated with preventing its oxidation. In this laboratory study the effect of iron (II) on the performance of scale inhibitors is determined for calcite inhibition in the Prudhoe Bay surface facilities. A tube block test procedure

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Raheem, Kabir, Olujide Sanni, Thibaut Charpentier, and Anne Neville. "Surface Precipitation and Growth Kinetics of Calcium Carbonate (CaCO3) Scale Using a Novel Capillary Flow Rig." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16560.

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Abstract The oil and gas industry is plagued with various flow assurance challenges including the formation of inorganic scale on component surfaces. Much research into scaling and inhibition is now being directed towards surface deposition as fouling on surfaces often causes operational problems and the rates cannot be predicted by consideration of bulk precipitation processes. However, achieving a mechanistic understanding of surface kinetics requires laboratory techniques that offer the ability to control thermodynamic parameters. A novel once-through capillary flow rig design based on the

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Yuan, Juntao, Anqing Fu, Chengxian Yin, et al. "Corrosion of N80 Tubing Steel in Multi-thermal Fluid Used for Enhacing the Production of Heavy Oil." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13235.

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Abstract The multi-component thermal fluid generator is one of the usages of high-pressure combustion and jetting mechanism of rocket engine. The injected fuel (e.g. natural gas, diesel oil, crude oil) and oxidizer (e.g. air) are burned in the airtight combustor, and then generate high temperature and high pressure gas mixture containing carbon dioxide, nitrogen gas, oxygen and (superheated) steam. The thermal gas mixture is directly injected into the oil reservoir to extract heavy oil, which would cause serious corrosion of metallic tubing. In the present paper, the corrosion of N80 tubing st

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Yang, Yan, Rajan Ambat, Riccardo Rizzo, and Magdalena Rogowska. "Multipronged Characterization of Scales and Corrosion on L80 Steel in the Presence of Microorganism." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13226.

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Abstract Scale deposit and corrosion attack on the L80 steel were observed using several analytical techniques, including 3D scanning microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). This multipronged approach provided a more complete image and component of the species found on the steel surface. Cross-sectional SEM examinations showed the distribution and characteristic of scale. The results of EDS revealed that Fe, O and S were the most abundant elements in the scale layer, and the component analysis results showed that iron hy

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Yepez, Omar, Nihal Obeyesekere, and Jonathan Wylde. "Can Critical Pitting Temperature Be Used on Carbon Steel? and Finding the Localized Corrosion Behavior in the Impedance Spectra of the CO2 Corrosion Process." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11389.

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Abstract Critical Pitting Temperature (CPT) is used to measure the breakdown of passive layers on corrosion resistant alloys. A large oxidative potential, typically +720 mV (SCE) is imposed on a metal surface. Then, the reaction temperature is increased from 0 °C until a breakdown of the metallic passive layer occurs. This breakdown is observed as an abrupt increase in the current. For example, in the case of UNS S31600, the failure of its metallic passive layer occurs around 12 °C. The high current observed is due to localized corrosion occurring where the layer broke. An oxidative potential

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Lu, Peng, Tao Chen, Qiwei Wang, and Frank Chang. "New Understanding on Iron Sulfide Deposition During Acid Stimulation in Sour Gas Wells Using an Advanced Modeling Approach." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11060.

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Abstract Iron sulfide scaling has been a persistent problem for oil and gas production from sour reservoirs. To study iron sulfide deposition in near-wellbore formations, an advanced numerical geochemical method, reactive transport modeling (RTM), is applied in this paper to simulate the iron-bearing scale formation, especially during and post acid stimulation. The code Toughreact is used for simulation. The model results allow an insight into the spatial and temporal distribution of iron-bearing scale precipitation, wormhole formation, as well as reservoir pressure and water chemistry evoluti

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Reports on the topic "Carbonate component"

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Calabrese, Andrea, Pitiporn Asvapathanagul, Nisarg N. Patel, et al. Experimental Investigation of the Self-Healing Potential of Bacteria for Sustainable Concrete Structures Phase 2. Mineta Transportation Institute, 2024. http://dx.doi.org/10.31979/mti.2024.2331.

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Concrete is a critical component of so much of the modern construction industry. This material, well known for its versatility, robustness, longevity, and strength, is well-suited for a wide range of structural applications. Nonetheless, the widespread occurrence of cracks in concrete structures, primarily attributed to its limited tensile strength, shrinkage, and overstain, imposes a considerable economic and environmental challenge when it comes to retrofitting these fissures. This study tackles this problem by harnessing bacteria tolerant to high alkaline conditions to enable Microbially In

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Rainbird, R. H., and W. J. Davis. Summary of the Statherian-Calymmian paleogeography of northwestern Laurentia. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332508.

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The ca. 1.75 to 1.27 Ga Hornby Bay intracontinental basin, in northwestern Canada, includes the Big Bear, Mountain Lake, and Dismal Lakes groups. This paper investigates the original depositional environments, paleogeography, and architecture of these groups and how they correlate in time and space. The Big Bear group comprises mainly immature clastic rocks deposited by high-energy rivers, the overlying Mountain Lake group was deposited by westerly flowing rivers over a much broader region, and, following tectonic uplift and erosion, basal clastic rocks of the Dismal Lakes Group were deposited

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Hutson, N. D. An evaluation of foaming potential in the IDMS melter. [Neutralization of waste sludge base components (hydroxides and carbonates) with nitric acid]. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/6808755.

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Mackie, S. J., C. M. Furlong, P. K. Pedersen, and O. H. Ardakani. Stratigraphy, facies heterogeneities, and structure in the Montney Formation of northeastern British Columbia: relation to H2S distribution. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329796.

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In the last decade, the Lower Triassic Montney Formation of the Western Canada Sedimentary Basin (WCSB) has undergone significant development, providing a rich dataset to study structural, stratigraphic, and facies control on the variations in hydrogen sulphide (H2S) gas content. Splitting the siltstone dominated Montney into the three regional members (i.e., Lower Montney, Middle Montney, and Upper Montney) allows for detailed analysis on the enrichment of H2S within a local-scale study area in northeastern British Columbia (BC). Within this study area, Upper Montney H2S content increases wit

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Delwiche, Michael, Boaz Zion, Robert BonDurant, Judith Rishpon, Ephraim Maltz, and Miriam Rosenberg. Biosensors for On-Line Measurement of Reproductive Hormones and Milk Proteins to Improve Dairy Herd Management. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7573998.bard.

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The original objectives of this research project were to: (1) develop immunoassays, photometric sensors, and electrochemical sensors for real-time measurement of progesterone and estradiol in milk, (2) develop biosensors for measurement of caseins in milk, and (3) integrate and adapt these sensor technologies to create an automated electronic sensing system for operation in dairy parlors during milking. The overall direction of research was not changed, although the work was expanded to include other milk components such as urea and lactose. A second generation biosensor for on-line measuremen

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Kirby, Stefan M., J. Lucy Jordan, Janae Wallace, Nathan Payne, and Christian Hardwick. Hydrogeology and Water Budget for Goshen Valley, Utah County, Utah. Utah Geological Survey, 2022. http://dx.doi.org/10.34191/ss-171.

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Goshen Valley contains extensive areas of agriculture, significant wetlands, and several small municipalities, all of which rely on both groundwater and surface water. The objective of this study is to characterize the hydrogeology and groundwater conditions in Goshen Valley and calculate a water budget for the groundwater system. Based on the geologic and hydrologic data presented in this paper, we delineate three conceptual groundwater zones. Zones are delineated based on areas of shared hydrogeologic, geochemical, and potentiometric characteristics within the larger Goshen Valley. Groundwat

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