OXIDATION OF GALENA IN AMMONIUM CARBONATE SOLUTION AND APPLIED REACTOR

来源期刊：中国有色金属学报(英文版)1995年第3期

论文作者：Gong, Qian Gong, Yajun Cao, Changlin Lu, Keyuan

文章页码：41 - 44

Key words：galena; carbonate; reactor

Abstract: Anodic behaviour of galena in ammonium carbonate solution and products of anodic reaction resulting in passivation have been studied by electrochemical technologies including rotating ringdisc electrode etc. and physical detects. The effects of impurities in galena such as pyrite, pyrrhotite on converting galena to lead carbonate have been explained. The conversion rate can be accelerated by addition of some cupric ions to the ammonium carbonate solution and can be expressed by a = Klogt + B.The optimum reactor suitable for the conversion is a propeller agitation reactor without baffles, which has been proved in enlarged experiments with the reactor charged 50 kg ore.