Results 81 to 90 of about 17,376 (215)
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1962 Thermal transformation of chalcopyrite in argon atmosphere has been studied in temperature from 200°up to 1000°C, using the thermogravimetric, X-ray analyes and erflected microscopic examination. Both of the thermogravimetric and differential thermal analyses curves suggest some endouthermic eraction or transformation, as formerly recognized, at 540 ...
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Electron paramagnetic resonance, optical absorption and Raman spectral studies on a pyrite/chalcopyrite mineral [PDF]
, 2012 Pyrite and chalcopyrite mineral samples from Mangampet barite mine, Kadapa, Andhra Pradesh, India are used in the present study. XRD data indicate that the pyrite mineral has a face centered cubic lattice structure with lattice constant 5.4179 Å. Also it
Seshamaheswaramma, K. +5 more
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MetalsThe effective and environmental separation of chalcopyrite and molybdenite has long presented a challenge in mineral processing due to their similar floatability and close association at room temperature. This study explores the non-toxic 1-thioglycerol (
Feng Jiang +4 more
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MetalsThis paper presents a systematic analysis of the solid products formed during the cathodic decomposition of chalcopyrite using the acetic acid system. The reduction of chalcopyrite was assessed using different electrochemical and surface characterization
Laura Denisse Jasso-Recio +5 more
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Iron and sulfur utilisation patterns in chemolithotrophic cultures [PDF]
, 2012 In this study, the growth and behaviour of chemolithotrophic organisms in the presence of both ferrous and tetrathionate ions was investigated. Given the impact of chemolithotrophic metabolic activity upon the chemistry and leaching of mineral sulfide ...
Shiers, Denis
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An evaluation of sulfidisation in the flotation recovery of heavily oxidised sulfide minerals : with particular reference to oxidised Merensky ores [PDF]
, 2007 Includes bibiographical references (p. 165-180)
Newell, Andrew James Haigh
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, 2017 Chemical element analysis and X-ray diffraction (XRD) analysis showed that the two chalcopyrite minerals were of high purity. A mixed culture of moderately thermophiles was used for chalcopyrite bioleaching at 45°C and the copper recovery of chalcopyrite
Jun Wang +7 more
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Effects of turbomilling parameters on the simultaneous grinding and ferric sulfate leaching of chalcopyrite [PDF]
"As part of its mission, the U.S. Bureau of Mines continues to develop technologies that will enable cost-effective compliance with environmental requirements.
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Chalcopyrite-Derived NaxMO2 (M = Cu, Fe, Mn) Cathode: Tuning Impurities for Self-Doping
, 2019 Discovering cathode materials composed of earth-abundant elements has become the current priority for developing sodium-ion batteries (SIBs) to meet the ever-increasing demand of large-scale energy storage. Herein, for the first time, layered NaxMO2 (M =
Yue Yang (52715) +17 more
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Communications Earth & EnvironmentChalcopyrite (CuFeS2) is the main source of copper worldwide and is usually formed at high temperature. Its occurrence at low temperature is poorly documented, and the mechanisms controlling its formation remain uncertain.
Andrey M. Ilin +15 more
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