Electrochemical flotation separation of chalcopyrite from molybdenite by CM Eh control

来源期刊：中国有色金属学报(英文版)2000年第z1期

论文作者：蒋玉仁 周立辉 薛玉兰 张清香

文章页码：110 - 113

Key words：electrochemical flotation； chalcopyrite； molybdenite

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 (HSCH₂CCOOH) under the same condition.