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Journal articles on the topic 'Ore characterization'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Khalkho, Rajiv. "3D Geological Modelling for Ore Deposit Characterization and Mine Planning." International Journal of Science and Research (IJSR) 14, no. 2 (2025): 707–11. https://doi.org/10.21275/sr25204203555.

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2

Andia, Andia, Adi Rahwanto, and Zulkarnanin Jalil. "SYNTHESIS AND CHARACTERIZATION OF HEMATITE (Fe2O3) EXTRACTED FROM IRON ORE BY PRECIPITATION METHOD." Jurnal Natural 16, no. 1 (2016): 15–17. http://dx.doi.org/10.24815/jn.v16i1.4361.

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Indonesia has a lot of mining material of iron ore that could be used for various purposes in the steel industry or for other. This research, has synthesized and characterization of hematite from local iron ore from Lhoong area by precipitation mechanism. The iron ore powder was magnetic separation with magnet then mixed with HCl and NH4OH. Then, it was dried at temperature of 150 ºC and calcinated at 500º C for 2 hours. Characterizations were perfomed using X-ray Diffraction (XRD) and X-ray Fluorescence (XRF). As the results, it was found that the magnetic separation iron ore showed the compo

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3

Kamolpornwijit, Wiwat, Jay N. Meegoda, and Zhengbo Hu. "Characterization of Chromite Ore Processing Residue." Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management 11, no. 4 (2007): 234–39. http://dx.doi.org/10.1061/(asce)1090-025x(2007)11:4(234).

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4

Wikedzi, A., S. Saquran, T. Leißner, U. A. Peuker, and T. Mütze. "Breakage characterization of gold ore components." Minerals Engineering 151 (June 2020): 106314. http://dx.doi.org/10.1016/j.mineng.2020.106314.

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5

Stenebråten, J. F., W. P. Johnson, and D. R. Brosnahan. "Characterization of Goldstrike ore carbonaceous material." Mining, Metallurgy & Exploration 16, no. 3 (1999): 37–43. http://dx.doi.org/10.1007/bf03402817.

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6

Stenebråten, J. F., W. P. Johnson, and J. McMullen. "Characterization of Goldstrike ore carbonaceous material." Mining, Metallurgy & Exploration 17, no. 1 (2000): 7–15. http://dx.doi.org/10.1007/bf03402823.

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7

Abbaker, Ahmed Mohammedelmubarak, Eltahir Mohamed Moslim, and Montasir Sabbah El Din Elsalmawy. "Mineralogical and Chemical Characterization of Bajrawia Iron Ore, Sudan." FES Journal of Engineering Sciences 8, no. 1 (2019): 8–14. http://dx.doi.org/10.52981/fjes.v8i1.3.

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In this contribution, the mineralogical and chemical characterization of Bajrawia iron ore is investigated. The chemical analysis was conducted using atomic absorption spectroscopy, X-ray Fluorescence, Energy Dispersive X-ray and titration. The mineralogical characterization was obtained by optical microscopy and X-ray diffraction. The physical properties such as densities, water content and porosity were determined. It was found that Bajrawia iron ore contains about 35.5% Fe and some impurities like phosphorus and silica. Goethite is the major iron mineral associated with minor contents of he

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8

Mesquita, J., R. Belissont, M. Badawi, H. Turrer, and Y. Foucaud. "Integrated approach for Mont Reed iron ore: From characterization to ore processing." Minerals Engineering 232 (October 2025): 109469. https://doi.org/10.1016/j.mineng.2025.109469.

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9

Kolb, F., A. Pichler, H. Mali, and J. Schenk. "Standardized Iron Ore Characterization Methodology for Metallurgy." Practical Metallography 52, no. 1 (2015): 5–20. http://dx.doi.org/10.3139/147.110326.

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10

Ricardo Assuncao Godinho, Jose, Shuvam Gupta, Camila Guimaraes da Silva Tochtrop, et al. "Quantitative 3D characterization of chromite ore particles." Minerals Engineering 204 (December 2023): 108403. http://dx.doi.org/10.1016/j.mineng.2023.108403.

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11

A., U. Itodo, A. Egbegbedia L., S. Eneji I., and A. Asan A. "Iron Ore Deposit and Its Tailing Impact on the Toxic Metal Level of Neighboring Agricultural Soils." Asian Journal of Environment & Ecology 2, no. 4 (2017): 1–16. https://doi.org/10.9734/AJEE/2017/32900.

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<strong>Aim: </strong>This is one of our mineralogical study series aimed at the preliminary characterization of iron ore and its neighboring farmland soils, with focus on ore impact on soil quality, toxic metals concentration and the geo-accumulation status of pollutants. <strong>Methodology:</strong> Mineral (Iron ore) samples and ore rich soils from neighboring farmlands, coded as I-Soil, I-soil-FLA, I-soil-FLB and I-soil-FLC were collected from Itakpe, Kogi State in North Central Nigeria. Samples were qualitatively characterized using Fourier Transform Infrared Spectrometer (FTIR), Scannin

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12

Mgbemere, H.E., E.O. Obidiegwu, and H.O. Onovo. "Beneficiation of Low-grade Barite ore from Dadin Kowa, Gombe State, Nigeria." Nigerian Research Journal of Engineering and Environmental Sciences 08, no. 01 (2023): pp. 147–154. https://doi.org/10.5281/zenodo.8094696.

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<em>The challenge with using most Barite ores from Nigeria is usually their low specific gravity values as a result of impurities contained in them. This research investigates the beneficiation using froth floatation process of low grade Barite ore from Dadin Kowa in Gombe State, Nigeria. The concentration of the floatation chemicals was varied from 0 to 0.5 mol. X-ray fluorescence (XRF), microscopy, X-ray diffraction (XRD) and specific gravity (S.G) methods were used to analyse the constituents, morphology, phases and concentration of the barite respectively. The results show that 80% improve

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13

Messai, Ali, Abdelaziz Idres, and Aissa Benselhoub. "Mineralogical characterization of limonitic iron ore from the Rouina mine, Ain Defla (Algeria)." Journal of Geology, Geography and Geoecology 27, no. 2 (2018): 305–15. http://dx.doi.org/10.15421/111854.

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The Rouina mine is one of the oldest operated mines of iron ore in Algeria, its product is used like an adjuvant in the cement industry because the extracted raw material is considered as a low-grade ore. The present paper investigates on the one hand its mineralogical composition with the aim of understanding the morphology, texture, phase identification and iron properties; and on the other hand studying the influence of washing on its quality. For characterization, X-Ray Diffractions (XRD) of collected samples, analysis of thin sections with scanning electron microscope (SEM), and a sieve a

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14

DeMiglio, D. S. "Ore characterization by digital color x-ray mapping." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 850–51. http://dx.doi.org/10.1017/s0424820100145595.

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A silver ore was examined by scanning electron microscopy (SEM) to aid in the selection of an extraction process by documenting the distribution and association of elements found within a representative sampling of ore particles. Through the use of color image processing similar to that used by Krakow digital X-ray maps were acquired which showed elemental distributions indicative of mineral phases previously identified by X-ray powder diffraction. Prior to this investigation silver particles (<10 microns) were observed to be randomly distributed throughout the host rock which was primarily

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15

Gessner, Klaus, Tom Blenkinsop, and Peter Sorjonen-Ward. "Characterization of ore-forming systems – advances and challenges." Geological Society, London, Special Publications 453, no. 1 (2018): 1–6. http://dx.doi.org/10.1144/sp453.16.

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16

Olubambi, P. A., S. Ndlovu, J. H. Potgieter, and J. O. Borode. "Mineralogical characterization of Ishiagu (Nigeria) complex sulphide ore." International Journal of Mineral Processing 87, no. 3-4 (2008): 83–89. http://dx.doi.org/10.1016/j.minpro.2008.02.008.

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17

LEROY, ANDRÉ, and JERZY MATCZUK. "ORE EXTENSIONS SATISFYING A POLYNOMIAL IDENTITY." Journal of Algebra and Its Applications 05, no. 03 (2006): 287–306. http://dx.doi.org/10.1142/s0219498806001727.

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Necessary and sufficient conditions for an Ore extension S = R[x;σ,δ] to be a PI ring are given in the case σ is an injective endomorphism of a semiprime ring R satisfying the ACC on annihilators. Also, for an arbitrary endomorphism τ of R, a characterization of Ore extensions R[x;τ] which are PI rings is given, provided the coefficient ring R is noetherian.

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18

Contreras, M., M. J. Gázquez, and J. P. Bolívar. "Mineral Separation and Characterization of the Ilmenite Ore Phases: Optimization of the TiO2 Pigment Process." International Journal of Thermal and Environmental Engineering 16, no. 2 (2018): 105–12. http://dx.doi.org/10.5383/ijtee.16.02.006.

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19

Taofeek, A., and I. A. Amos. "Physicochemical characterization of Copper Ore from Akiri, Awe LGA, Nasarawa State." Science World Journal 18, no. 3 (2023): 371–74. http://dx.doi.org/10.4314/swj.v18i3.7.

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The bulk density, compressional strength, hardness, particle study and chemical analysis of ore from Akiri were determined using standard methods and Energy Dispersive x-ray Fluorescence spectrometry (ED-XRFS). The results obtained indicated that the ore bulk density was 3.58 (g/cm3 ), compressional strength 1.24 (%), and hardness 96.0(N). The particle size analysis of +0-90µm, +125-90µm, and +125-180µm, revealed over-size fractions above 250µm.The chemical composition of the ore in terms of oxide showed that the ore is composed of different minerals: 63.52% Fe2O3, 11.25% SO3, 7.62% CuO, 4.30%

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20

Ali, Sajad, Fahad Nawaz, and Yaseen Iqbal. "Phase, Microstructural Characterization and Beneficiation of Iron Ore by Shaking Table." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 64, no. 1 (2021): 19–25. http://dx.doi.org/10.52763/pjsir.phys.sci.64.1.2021.19.25.

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To know about the nature of gangue associated with the ores, characterization has become an integral part in mineral processing and beneficiation, therefore, the as-mined iron ore collected from Karak region of KP has been characterized for its phase, microstructure and chemical composition via XRD, SEM and EDS respectively. Beneficiation of the iron ore has been carried out by shaking table and magnetic separator. XRD analysis confirmed the presence of iron oxide (Fe203) as the major phase along with quartz (Si02) as the minor phase. Finely grinded iron ore powder of 100 (149 µm) and 200 (74

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21

Chen, Yong, Yongsheng Song, Wenjuan Li, and Liulu Cai. "Mineralogical Characteristics of a Micro-Fine and Low Grade Refractory Gold Ore." MATEC Web of Conferences 142 (2018): 02011. http://dx.doi.org/10.1051/matecconf/201814202011.

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Detailed characterization of a micro-fine, low-grade refractory gold ore from a beneficiation plant in Yunnan Province, China, was investigated. Different analytical techniques, such as videlicet size analysis, scanning electron microscopy, and mineral analysis by a Mineral Liberation Analyser, were used for mineralogical characterization of the ore. The results show that the most valuable metal is gold. Grain size of pyrites and arsenian pyrites, which are main gold carrying minerals, are mostly 1 ~ 30 μ m. The gangue mineral is composed of quartz, mica, dolomite and feldspar, while the conte

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22

Ocheri, C., and C. N. Mbah. "CHARACTERIZATION AND MINERALOGICAL ANALYSIS OF EZEAGU IRON ORE, ENUGU STATE, NIGERIA." JOURNAL OF METALLURGY AND MATERIALS ENGINEERING 14, no. 1 (2024): 54–66. http://dx.doi.org/10.62934/jmme/nms-2024-pt006.

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An investigation was conducted on the characteristics and mineralogical analysis of Ezeagu iron ore. Ezeagu is situated in the Ezeagu Local Government Area of Enugu State with its administrative headquarters located in the town of Aguobu-Owa. The characterization and mineralogical analysis were conducted by utilizing some basic techniques for analysis such Scanning Electron Microscopy (SEM attached with Energy Dispersive X-Ray Spectroscopy (EDX), X-ray fluorescence (XRF), and an X-ray diffractometer (XRD) and Fourier Transformed Infrared Spectroscopy (FTIR). These analytical techniques were us

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23

Ocheri, C., and C. N. Mbah. "CHARACTERIZATION AND MINERALOGICAL ANALYSIS OF EZEAGU IRON ORE, ENUGU STATE, NIGERIA." Journal of Metallurgy and Materials Engineering 14, no. 1 (2024): 54–64. http://dx.doi.org/10.62934/jmme.14.1.2024.54-64.

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An investigation was conducted on the characteristics and mineralogical analysis of Ezeagu iron ore. Ezeagu is situated in the Ezeagu Local Government Area of Enugu State with its administrative headquarters located in the town of Aguobu-Owa. The characterization and mineralogical analysis were conducted by utilizing some basic techniques for analysis such Scanning Electron Microscopy (SEM attached with Energy Dispersive X-Ray Spectroscopy (EDX), X-ray fluorescence (XRF), and an X-ray diffractometer (XRD) and Fourier Transformed Infrared Spectroscopy (FTIR). These analytical techniques were us

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24

Pramanik, Susanta, and Swapan Kumar Mitra. "Development of Hollow Iron Ore Agglomerate and its Characterization." Materials Science Forum 783-786 (May 2014): 956–60. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.956.

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Blast Furnace remains to be one of main producers of molten iron. The secondary or alternate sources of producing molten iron have come in place and contribute around 30% of molten iron production in the world. Good iron ore reserves are fast depleting coupled with a huge amount of fines being produced during mining.

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25

Abouzeid, Abdel-Zaher M., and Abdel-Tawab A. Negm. "Characterization and Beneficiation of an Egyptian Nepheline Syenite Ore." International Journal of Mineralogy 2014 (February 16, 2014): 1–9. http://dx.doi.org/10.1155/2014/128246.

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Nepheline syenite ore is an essential constituent in ceramics and glass raw material meals, as a flux and as a source of alumina. The natural nepheline syenite rocks contain some undesired minerals, which are usually eliminated or reduced to the allowable limits by beneficiation. The present paper is concerned with characterization and beneficiation of an Egyptian nepheline syenite rock, at Abu Khruq locality, Eastern Desert, Egypt. The ore is exceptionally hard, with high crushing strength of 875 kg/cm2, and iron oxide content of about 6.5%. The grain size of the constituents is relatively la

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26

Sajjad Ali. "Phase, Minero-Chemical and Microstructural Characterization of Chromite Ore." Dandao Xuebao/Journal of Ballistics 36, no. 1 (2024): 125–34. https://doi.org/10.52783/dxjb.v36.162.

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Chromite ore sample was collected from active mine of Heroshah (34.503041 °N, 71.904565 °E) Malakand agency, Khyber Pakhtunkhwa (KP), Pakistan. The sample was properly washed, dried, and grounded to 74 m (200 mesh) in a pestle and mortar. The phase, microstructure and chemical composition of the ore was studied. X-rays diffraction (XRD) analysis revealed the presence of Aluminium chromite [Fe(Al,Cr)2O4] and Ringwoodite (Mg2SiO4) phases. Microstructural study revealed granular morphology where the chromite grains were surrounded by veins and grains of gangue material. It also shows fractures f

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27

Singh, Mandeep, Satish Kumar, Sagar Kumar, Gopal Nandan, and Munish Gupta. "Characterization of Iron-ore suspension at In-situ conditions." Materials Today: Proceedings 5, no. 9 (2018): 17845–51. http://dx.doi.org/10.1016/j.matpr.2018.06.110.

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28

BABA, A. A., S. SWAROOPA, M. K. GHOSH, and F. A. ADEKOLA. "Mineralogical characterization and leaching behavior of Nigerian ilmenite ore." Transactions of Nonferrous Metals Society of China 23, no. 9 (2013): 2743–50. http://dx.doi.org/10.1016/s1003-6326(13)62792-2.

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29

Parian, Mehdi, Abdul Mwanga, Pertti Lamberg, and Jan Rosenkranz. "Ore texture breakage characterization and fragmentation into multiphase particles." Powder Technology 327 (March 2018): 57–69. http://dx.doi.org/10.1016/j.powtec.2017.12.043.

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30

Gustafsson, G., H. Å. Häggblad, and S. Knutsson. "Experimental characterization of constitutive data of iron ore pellets." Powder Technology 194, no. 1-2 (2009): 67–74. http://dx.doi.org/10.1016/j.powtec.2009.03.026.

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31

Niiranen, Kari, and Viktoria Töyrä. "Characterization of Mertainen Iron Ore Deposit for Mineral Processing." BHM Berg- und Hüttenmännische Monatshefte 165, no. 8 (2020): 346–52. http://dx.doi.org/10.1007/s00501-020-01014-w.

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32

Mufakhir, F. R., W. Astuti, E. Purwaningsih, et al. "Characterization of gold ore from Tanggamus mine Lampung Province." IOP Conference Series: Materials Science and Engineering 478 (February 26, 2019): 012018. http://dx.doi.org/10.1088/1757-899x/478/1/012018.

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33

Farrokhpay, Saeed, Michel Cathelineau, Simon B. Blancher, Odile Laugier, and Lev Filippov. "Characterization of Weda Bay nickel laterite ore from Indonesia." Journal of Geochemical Exploration 196 (January 2019): 270–81. http://dx.doi.org/10.1016/j.gexplo.2018.11.002.

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34

Goes, Thiago, Kelly Ferreira, Raulim Galvão, Stephânia Nogueira, and Carlos Pereira. "Characterization of polymetallic ore of zinc, copper and lead." Concilium 24, no. 7 (2024): 361–76. http://dx.doi.org/10.53660/clm-3230-24g19.

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The study aimed to characterize a sample of approximately 150 kg of polymetallic zinc, copper and lead ore from the Aripuanã region, Mato Grosso. Due to the strategic importance of these minerals in the Brazilian economy and the complexity of processing. To achieve the objective, techniques such as scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDS), X-ray diffraction (XRD) and inductively coupled plasma mass spectrometry (ICP) were used to identify the minerals and determine its chemical composition. Furthermore, the Bond Work Index (WI) test was performed to evalua

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35

Baghdadi, M. Y., Z. Chafi, M. Louz, T. Tahri, M. E. A. Benamar, and S. Bellucci. "Origin of the over consumption of cyanide during the leaching of the Amesmessa gold ore." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 2 (April 30, 2025): 26–32. https://doi.org/10.33271/nvngu/2025-2/026.

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Purpose. Physicochemical characterization of four gold ores from the Amesmessa deposit centre (western Hoggar, in the south of Algeria) to determine the mineralogical and chemical composition of the ore body in the depth zone and ore cyanidation behaviour. The principle is to compare the gold recovery and the cyanide consumption rates at the end of the leaching process. The purpose of this test is to detect the possible presence of cyanogenic elements in the mineralised zone. Methodology. The samples were crushed and analysed using many techniques, such as x-ray diffraction (XRD), Infrared spe

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36

Li, Jian, Laura Kuhar, Peter Austin, and Micheal Da Costa. "Characterization of a low-grade copper-sulphide ore to assess its suitability for in situ recovery." Powder Diffraction 32, S2 (2017): S78—S84. http://dx.doi.org/10.1017/s088571561700077x.

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CSIRO Minerals is developing new technologies and approaches for the in situ recovery (ISR) of valuable metals. ISR provides opportunities to process small and/or deep deposits and could create additional revenue for conventional uneconomic mines. Unlike for conventional processing, no standard methodology exists for characterizing sample suitability for ISR. The authors are developing a workflow to understand sample and deposit amenability to ISR processing. A South Australian low-grade iron-oxide-copper-gold sulphide ore was studied. A total of 37 drill cores samples were obtained from the o

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37

Muwanguzi, Abraham J. B., Andrey V. Karasev, Joseph K. Byaruhanga, and Pär G. Jönsson. "Characterization of Chemical Composition and Microstructure of Natural Iron Ore from Muko Deposits." ISRN Materials Science 2012 (December 3, 2012): 1–9. http://dx.doi.org/10.5402/2012/174803.

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The study aimed at investigating the chemical composition and microstructure of raw iron ore from the deposits in Muko area (south-western Uganda). The quality of this iron ore was evaluated to establish its suitability to serve as a raw material for iron production. Samples were taken from the six hills of Muko ore deposits and tests carried out to establish their composition and properties. X-ray diffraction and scanning electron microscopy were employed in the investigation and chemical analysis performed to determine the compounds constituting the ore. The quality of this ore was compared

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38

Gibson, Borbor A. K. K., Glen Nwaila, and Jochen Petersen. "Characterization of a coarse synthetic silver ore as a model ore material for heap leaching research." Minerals Engineering 174 (December 2021): 107253. http://dx.doi.org/10.1016/j.mineng.2021.107253.

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39

Zulkania, Ariany, Brian Adi Febrananda, Rahemas Sri Laude, Artha Dewi Mella Melati, and Achmad Chafidz. "Characterization and Reduction Behavior of Carbonized Ore Prepared by Iron Ore Immersion in Tar Derived from Biomass Pyrolysis." Materials Science Forum 1029 (May 2021): 181–87. http://dx.doi.org/10.4028/www.scientific.net/msf.1029.181.

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The provision of carbon reducing agents for the direct reduction process of iron ore is carried out by immersing the iron ore in a tar solution and then proceeding with the pyrolysis/ carbonization process to obtain carbon deposits on the surface of the iron ore. The purpose of this study is to investigate the characterization and reduction behavior of Fe compounds resulting from impregnation and carbonization processes. In this study, iron ore is immersed in the pine flower tar with immersion time varying from 0 - 12 hours and a fixed ratio of tar / ore 1: 1. The soaking mixture is then carbo

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40

Ghani, Usman, and Ishaq Ahmad. "Geological investigations and mineralogical characterization of the Awreith Gol Lead-Antimony Deposit, Chitral, Pakistan." Mining of Mineral Deposits 17, no. 4 (2023): 103–8. http://dx.doi.org/10.33271/mining17.04.103.

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Purpose. The importance of mineralogical characterization for complex ore deposits is continuously increasing due to the increasing demand for minerals worldwide. The proper mineral characterization needs to be carried out for selecting appropriate processing technology for the beneficiation of complex ore in order to efficiently obtain ore concentrate according to the market demand. The purpose of this study is to carry out a detail mineral characterization of the complex lead-antimony ore deposit of Chitral, Pakistan, necessary for selecting the most appropriate processing technology and des

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41

Xing, Yu, Hong Gao, Yuan Fang Ying, and De Zheng Qu. "Mechanochemical Activation and Characterization of Low-Medium Grade Phosphorite Ore." Advanced Materials Research 690-693 (May 2013): 3529–32. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.3529.

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The activation effect of ball-to-powder ratio and activation time on phosphorite ore that takes place in mechanochemical activation has been investigated in present paper, which is carried out in a planetary mill AGO-II. The results show that, particle sizes decreased after activation; the leaching rate of water-soluble P2O5 increased 4.6 percentage as ball-to-powder ratio rose from 8:1 to 40:1; the activated particle of samples has been highly dispersed, while the leaching rate of water-soluble P2O5 reached 10.1% after milling 15 minutes during activation, which was 4 times as high as the un-

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42

El-Hazek, M. N., T. E. Amer, R. M. Issa, M. G. Abu El-Azm, S. A. Omar, and S. M. El-Hady. "Characterization and Breakdown of South Gabal EL A’urf Polymineralized ore Material." Eurasian Chemico-Technological Journal 11, no. 2 (2016): 149. http://dx.doi.org/10.18321/ectj309.

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The polymineralized ore material of south Gabal El-A’urf area hosts several economic minerals. These include tanteuxenite, monazite, bastanasite, anatase, as well as zircon. The corresponding interesting rare metals of these minerals include Nb, Ta, lanthanides (REE), Ti, and Zr. Different breakdown techniques have been investigated namely; agitation, pug and fusion. The latter technique is found to be preferred under the following conditions; potassium bisulphate ore/reagent weight ratio of 1/3 at 650 ºC for 3 h. The realized dissolution efficiencies for all metal values were as follows 98.0%

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43

Hashemi, Ebrahim, and Mona Abdi. "On the diameter of compressed zero-divisor graphs of ore extensions." Filomat 34, no. 7 (2020): 2387–400. http://dx.doi.org/10.2298/fil2007387h.

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This paper continues the ongoing effort to study the compressed zero-divisor graph over noncommutative rings. The purpose of our paper is to study the diameter of the compressed zero-divisor graph of Ore extensions and give a complete characterization of the possible diameters of ?E(R[x; ?,?]), where the base ring R is reversible and also have the (?,?)-compatible property. Also, we give a complete characterization of the diameter of ?E (R[[x;?]]), where R is a reversible, ?-compatible and right Noetherian ring. By some examples, we show that all of the assumptions ?reversiblity?, ?(?,?)-compa

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44

Tang, Kunning, Ying Da Wang, Peyman Mostaghimi, et al. "Bridging micro-to-nano scales for metal ore characterization via one-shot super-resolution." Minerals Engineering 225 (June 2025): 109219. https://doi.org/10.1016/j.mineng.2025.109219.

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45

Thiéry, Vincent. "Characterization of Fibrous Mimetite." Microscopy and Microanalysis 20, no. 2 (2014): 596–601. http://dx.doi.org/10.1017/s143192761301413x.

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AbstractMimetite, Pb5(AsO4)3Cl, is a ubiquitous mineral that is of interest in various fields such as ore mineralogy, environmental studies, and minerals engineering. Mimetite generally forms hexagonal prisms and barrel-shaped crystals, but its fibrous form is quite an uncommon one. Here we attempt to present its worldwide occurrences on the basis of a literature review. We then present a study on fibrous mimetite from one of its historical locations based on the petrographic microscope, SEM-SE and EDX, and Raman spectroscopy.

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Pazoki, Amir, Reza Rashidi-Khabir, Reza Jahanian, and Ali Pourbahaadini. "Characterization of Band-E Narges magnetite iron ore for mineral processing." Earth Sciences Research Journal 22, no. 2 (2018): 145–48. http://dx.doi.org/10.15446/esrj.v22n2.73438.

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The Band-e Narges deposit is located about 70 km northeast of the city of Badrud, northern Isfahan province. Band-E Narges ore deposit is mining for magnetite. To release valuable minerals, crushing and grinding implemented for separation ore from the gangue. Magnetic separation and flotation methods for upgrading magnetite iron ore were carried out in different experimental conditions with varied parameters. The particle size of the initial content was 74 microns for flotation, and 150 microns for magnetic separation. The initial samples, with the iron grade of 43.4% and sulfur of 1.9%, are i

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Guntoro, Pratama Istiadi, Yousef Ghorbani, and Jan Rosenkranz. "3D Ore Characterization as a Paradigm Shift for Process Design and Simulation in Mineral Processing." BHM Berg- und Hüttenmännische Monatshefte 166, no. 8 (2021): 384–89. http://dx.doi.org/10.1007/s00501-021-01135-w.

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AbstractCurrent advances and developments in automated mineralogy have made it a crucial key technology in the field of process mineralogy, allowing better understanding and connection between mineralogy and the beneficiation process. The latest developments in X‑ray micro-computed tomography (µCT) have shown a great potential to let it become the next-generation automated mineralogy technique. µCT’s main benefit lies in its capability to allow 3D monitoring of the internal structure of the ore sample at resolutions down to a few hundred nanometers, thus excluding the common stereological erro

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Gerasimov, Boris, and Larisa Kondratieva. "Mineral Characterization of Gold Ore Occurrences in the Khaptasynnakh Ore Zone, Anabar Shield, Far East Region, Russia." Minerals 15, no. 8 (2025): 774. https://doi.org/10.3390/min15080774.

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Mineral characterization of gold-bearing metasomatites in the Khaptasynnakh ore zone of the Anabar Shield is provided in detail. The following ore formation sequence of mineral associations in the Khaptasynnakh zone was found: pyrite and pyrrhotite → gersdorffite and molybdenite → chalcopyrite, sphalerite, and galena → bornite and chalcocite → tellurides, native gold, stibnite, cinnabar, and native bismuth. Native gold is characterized by varying fineness (550 to 926‰) and Cu impurity (up to 7.87%) values. Most often, it forms symplectite intergrowths with Au telluride–calaverite. Native gold

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Bendaikha, W., S. Larbi, and A. Ramdane. "Mineralogical and chemical characterization of an oolitic iron ore, and sustainable phosphorus removal." Journal of the Southern African Institute of Mining and Metallurgy 124, no. 2 (2024): 59–66. http://dx.doi.org/10.17159/2411-9717/2051/2024.

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An oolitic iron ore from Gara Djebilet, Algeria was characterized by X-ray diffraction, scanning electron microscopy, and energy dispersive spectrosopy and the phosphorus distribution between various phases studied. Two ore types were identified - a haematite-dominated, oolitic type and a more massive, magnetite-dominated type. The haematite-dominated ore had a higher phosphorus content, up to 0.6% in the iron oxide minerals, than the magnetite-dominated type (0.3% P). Owing to the very fine-grained texture of the gangue minerals, reducing the phosphorus content to levels suitable for steelmak

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Vitoretti, Flavia de Paula, Maria Carolina dos Santos Freitas, Camila Martins Hosken, Jose Adilson de Castro, and Fabiane Roberta Freitas da Silva. "Evolution of Sintering of Particles that Compose Iron Ore Agglomerates." Materials Science Forum 899 (July 2017): 371–76. http://dx.doi.org/10.4028/www.scientific.net/msf.899.371.

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The increasing demand for new technologies in the ironmaking/steelmaking field has been motivating several studies towards pelletizing process improvement. Within this context, evaluate the reduction of iron ore pellets using the dilatometer technique constitutes a promising approach for optimizing this process. This paper aims the metallurgical characterization through the sintering of particles in iron ore pellets. With this purpose, some experimental procedures are of concern as follows. Firstly, the kinetic densification of the iron ore pellets is measured using a dilatometer, which heats

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