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Trans. Nonferrous Met. Soc. China 25(2015) 2388-2397 Adsorption mechanism of 2-mercaptobenzothiazole on chalcopyrite and sphalerite surfaces: Ab initio and spectroscopy studies Fen JIAO, Wen-qing QIN... mechanism of the collector, 2-mercaptobenzothiazole (MBT), with chalcopyrite and sphalerite surfaces were investigated by Fourier transform infrared (FTIR) and density functional theory. Results of FTIR......
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and X-ray diffraction shows that it contains essentially copper, lead, zinc and iron in the form of chalcopyrite, sphalerite and galena. A small amount of pyrite is also present in the ore but does... spectrometry and X-ray diffraction allow to conclude that the rate of dissolution of the minerals contained in the complex sulphide concentrate are in the order of galena＞sphalerite＞chalcopyrite. Key......
, the electronic structures of chalcopyrite, chalcocite, covellite and bornite were calculated, and the relationship between electronic structure and flotation property was discussed. Different active... that chalcopyrite is a direct band-gap p-type semiconductor with band gap of 0.99 eV, while chalcocite, covellite and bornite are all conductor. On the basis of frontier orbital theory, the oxidation differences......
of metal and metal oxide, hydrometallurgy of chalcopyrite and metallic oxidized ore, and extraction and separation of metal ions, are introduced. Key words: ionic liquids; hydrometallurgy; nonferrous... studies of the extraction and separation of nonferrous metal in ionic liquids including metal oxide processing, hydrometallurgy of chalcopyrite and metallic oxidized ore, and extraction and separation......
Action time effect of lime on its depressive ability for pyriteTichang Sun Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正> Two sample groups of bulk concentrates consisting mainly of pyrite and chalcopyrite from Daye and Chenghchao Minesin Hubei Province of China were used......
and are found to have chalcopyrite structure(I"42d), in accordance with the Cu In Te2–Cu In Se2 phase diagram. The lattice constants deduced from the refinement have showed linear variation with Se content......
. And pH value and conductivity increase. The flotation tests show that magnetized water have greatly influence on flotation process with chalcopyrite. When the magnetic field intensity increases from 0 to 300 mT, the recovery rate of chalcopyrite reaches 90.19% from 86.74% with magnetized mater, and when reagents is magnetized, the recovery rate of chalcopyrite reaches 90.44% from 86.90%. Key......
High-temperature formation phases and crystal structure of hot-pressed thermoelectric compounds with chalcopyrite-type structureAtsuko Kosuga1,2,Yosuke Fujii1,3,Akito Horie11. Department of Physical... telluride CuGaTe2 with chalcopyrite structure from 300 to 800 K. These two compounds are potential thermoelectric materials in the intermediate temperature range; however, the temperature-dependent formation......
phase of the ore was siderite with chalcopyrite as the major sulfide mineral. The effects of parameters such as agitation, temperature, NH3 concentration, particle size and oxygen partial pressure... was (37.6±1.9) kJ/mol and empirical orders of reaction with respect to pO2 and [NH3] were about 0.2 and 1, respectively. Key words: ammonia leaching; chalcopyrite; siderite; leaching kinetics 1......
