Research Information System
Canadian Metallurgical Quarterly, vol.33, no.3, pp.175-183, 1994 (SCI-Expanded)
Rest potential and cyclic voltammetry studies were conducted on chalcocite and heazlewoodite as a function of pH in the presence and absence of the sulfhydryl collectors, sodium ethyl xanthate (EX) and the sodium salt of mercaptobenzothiazole (MBT). The minerals showed a significant difference in their response both in the presence and absence of collectors. The voltammograms suggested that EX- and MBT- interact with the minerals in a similar manner. Most reactions of chalcocite and heazlewoodite in the presence and absence of EX were identified from the literature. For the case of MBT and chalcocite the following new reaction is proposed at Ee = -0.060 V: Cu2S + 2MBT- → 2CuMBT + S° + 2e−. © 1994 Canadian Institute of Mining and Metallurgy Pergamon Press Ltd.