Electrochemical studies on chalcocite-heazlewoodite system.

摘要

issolution, rest potential, cyclic voltammetry and contact angle studies have been conducted on the components of INCO matte, chalcocite (Cu4;Dissolution of Ni from heazlewoodite was observed at pH ;Rest potential measurements were conducted over pH range 4 to 12 in the presence and absence of 2 ;Cyclic voltammetry experiments were carried out on chalcocite and heazlewoodite at pH 10 and 12; the minerals showed a significant difference in their response in the presence and absence of collectors. The voltammograms suggested that both NaEX and MBT interact with the minerals in a similar manner, the interaction being more significant in the case of chalcocite than heazlewoodite. A notable reaction was that of NaEX and MBT in suppressing (passivating) the oxidation of chalcocite at potentials ;Contact angle measurements were performed with chalcocite and heazlewoodite in the presence of 2