添加亚硫酸钠焙烧—氰化 提高金、银回收率的试验研究

Improving gold and silver recoveries for gold concentrates treated by roasting-cyaniding adding sodium sulfite

进行了添加亚硫酸钠焙烧—氰化浸出金、银的工艺试验研究。试验结果表明，在矿样中加入1％～3％亚硫酸钠进行焙烧。可使焙烧一氰化工艺金、银的浸出率分别提高2％和25％以上。

Experimental investigation on improving the recoveries of gold and silver for gold concentrates treated by roasting-cyanidation adding sodiurn sulfite was conducted . The results showed that the recoveries of gold and silver were increased more than 2% and 25% respectively by addition of 1 - 3g sodium sultite per 100g concentrate to roast.