Kinetics of electrochemical process ofgalena electrode in diethyldithiocarbamate solution
来源期刊:中国有色金属学报(英文版)2001年第4期
论文作者:覃文庆 邱冠周 胡岳华 徐竞
文章页码:587 - 590
Key words:electrode process; galena; electrochemistry of flotation
Abstract: The electrode process of galena in diethyldithiocarbamate (DDTC) solution at pH 11.4 has been investigated using cyclic voltammetry, potentiostatic and chronopotentiometry. Electrodeposit of PbD2 on galena electrode surface can occur while the electrode potential is higher than -0.05V. The relationship between the current density caused by diffusion and reaction time has been ascertained, and the diffusion coefficient of DDTC on galena surface in DDTC solution is about 1. 12×10-6 cm2/s. A passive PbD2 film covers the surface of galena electrode.