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Electrochemicalflotation separation of chalcopyritefrom molybdenite by CM Eh control
引用本文:蒋玉仁,周立辉 ,薛玉兰,张清香. Electrochemicalflotation separation of chalcopyritefrom molybdenite by CM Eh control[J]. 中国有色金属学会会刊, 2000, 10(Z1): 110-113
作者姓名:蒋玉仁  周立辉   薛玉兰  张清香
作者单位:JIANG Yu ren(蒋玉仁),ZHOU Li hui(周立辉),XUE Yu lan(薛玉兰),ZHANG Qing xiang(张清香) Department of Mineral Engineering,Central South University of Technology,Changsha 410083,P.R.China
摘    要:1 INTRODUCTIONMolybdeniteisofgoodnaturalfloatability ,andisnotdepressedinawidepotentialrange (- 1.2~1.4V) [1] .Ontheotherside ,thefloatabilityofchal copyriteisdecreasedquicklyataproperreductivepo tential.Therefore ,atlowpotential,chalcopyritecanbedepressedandmolyb…


Electrochemical flotation separation of chalcopyrite from molybdenite by CM Eh control
JIANG Yu ren. Electrochemical flotation separation of chalcopyrite from molybdenite by CM Eh control[J]. Transactions of Nonferrous Metals Society of China, 2000, 10(Z1): 110-113
Authors:JIANG Yu ren
Abstract:A new effective depressant of chalcopyrite CM was introduced. It is of strong reductibility and was used to control the pulp potential for depressing chalcopyrite in Cu Mo separation. Cyclic voltammetry measurements were made to study the redox reactions on the surface of chalcopyrite electrodes in different solution systems. Microflotation tests were performed to investigate its effect on the floatability of chalcopyrite. Results of cyclic voltammetry showed that CM - could be adsorbed on the surface of chalcopyrite prior to EX -, and was not easily oxidized in oxygen free solution. Microflotation tests indicated that the depressing effect of CM is better than that of Na 2S and TGA (HSCH 2CCOOH) under the same condition.
Keywords:electrochemical flotation  chalcopyrite  molybdenite
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