Results 211 to 220 of about 31,354 (260)

Enriching Saranov chromites

Refractories, 1967
A new technology was developed for enriching Saranov chromites using modern methods of enrichment and an effective technological set-up yielding chromite powders of high quality for the refractories industry. The use of enriched Saranov chromite makes it possible to produce chrome-containing refractories of high resistance.
V. V. Klyachin, R. L. Gabdulkhaev
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Chromite and chromite chondrules in meteorites—I

Geochimica et Cosmochimica Acta, 1967
Abstract In a number of chondrites, several chondrules have been found containing chromite as a major component. The second, most common mineral in these chondrules is usually an albite-like plagioclase. Besides coarse grains of chromite, many chondrules contain fine chromite grains, intergrown with feldspar as pseudomorphs after a previously ...
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Chromite-Rich and Chromite-Poor Ophiolites: The Oman Case

1991
Chroinite deposits in Oman belong dominantly to the concordant structural type, meaning that these have been intensely deformed by plastic flow and tectonically rotated to become parallel to the peridotite foliation. This occurred soon after their formation within the transition zone below the ridge of origin. Subconcordant and discordant pods are also
A. Nicolas, H. Al Azri
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Chromite-periclase roof articles

Refractories, 1996
An investigation of the technology for chromite-periclase roof articles is presented. With a scarcity of periclase powders compositions with 25–30% granular chromium ore and 35% finely milled mixture of periclase and chromite seem a suitable material for chromite-periclase roof linings. It is possible to use charges with 65% scrap.
G. I. Antonov, V. P. Nedosvitii
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Copper Chromite-Quinoline

2001
[12053-18-8] Cr2Cu2O5 (MW 311.07) InChI = 1S/2Cr.2Cu.5O InChIKey = JGDFBJMWFLXCLJ-UHFFFAOYSA-N [91-22-5] C9H7N (MW 129.16) InChI = 1S/C9H7N/c1-2-6-9-8(4-1)5-3-7-10-9/h1-7H InChIKey = SMWDFEZZVXVKRB-UHFFFAOYSA-N (decarboxylation catalyst) Physical Data: see the entries for Copper Chromite and Quinoline. Form
Edward J. Parish, Stephen Kizito
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Structural, optical, and dielectric properties for Mg0·6Cu0·2Ni0·2Cr2O4 chromite spinel

Physica B: Condensed Matter, 2022
Fakher Hcini, S. Hcini, M. A. Wederni, B. Alzahrani, H. Al Robei, K. Khirouni, S. Zemni, M. Bouazizi   +7 more
semanticscholar   +1 more source

Indian chromites [discussion]

Economic Geology, 1966
Relative to a paper by K. L. Chakraborty on the geologic and mineralogic characteristics of chromite occurrences in India (for reference, see this Bibliography Vol. 30), the age of the country rocks is questioned, as well as the degree of alteration of the dunite host, the evidence for injection of chromite, and the high alumina content of all Indian ...
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On meteoric chromites

Proceedings of the United States National Museum, 1908
USNM_index ...
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Chemistry and Leaching Behavior of Chromite Ore Processing Residue from the Soda Ash Process

Hazardous Waste, 2018
This study presents chemical, mineralogical, and leaching characterization of chromite ore processing residue (COPR) derived from the soda ash process, which is currently replacing the lime-based process in China, the world's largest chromite processor ...
Yaguang Du, M. Chrysochoou
semanticscholar   +1 more source

Preparation of stoicheiometric chromites

Journal of Inorganic and Nuclear Chemistry, 1962
Abstract The preparation of pure stoicheiometric chromites MCr2O4 (M  Mg2+, Zn2+, Cu2+, Mn2+, Fe2+, Co2+, Ni2+) from suitable precursors is discussed. Atomic ratios Cr/M very close to the theoretical values were obtained. The chromites were examined by chemical analysis and several physical constants were measured.
E. Whipple, A. Wold
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