摘要
Abstract
Jilin copper-bearing gold mine contains 11% -13% copper,30 ~50g/t gold. Since the gold is partially wrapped by chalcopyrite and other sulfides.the gold leaching rate is only 48.9% by direct cyanide leaching. Directed at the ore properties,research on gold leaching by the thiosulfate — ammonia system was carried on,focusing on the influence of leaching time, liquid-solid ratio, thiosulfate concentration and ammonia concentration on the leaching rate. The results showed that the leaching rate could reach 92% by leaching for 24 hours under the synthesis condition. This paper provides new ideas and technology for non-cyanide leaching. Meanwhile,it gives important reference to this kind of ore. Of course,the research on the recovery of gold in the leaching liquid should be enhanced.关键词
硫代硫酸盐/浸出/含铜金矿Key words
Thiosulfate leaching/Gold/Copper-bearing gold ore分类
矿业与冶金
