摘要
团结沟金精矿为黄铁矿型,部分金赋存在黄铁矿物相中。直接氰化时金浸出率为77—85%;采用催化氧化酸浸法预处理后,则金浸出率可达95%以上。本文对催化氧化酸浸操作条件及其变化的影响进行了详细研究,确定了各主要因素的合理操作范围。
The gold concentrate from Tuan Jie Gou gold mine is of pyritic type, from which only 77 to 85% gold could be recovered by conventional cyanidation method,because of the dissmination of submicroscopic gold with the pyrite. However,it is found that the gold extraction as high as 95% could be obtained through a pretreatment with catalytic oxidation acid leaching to destroy the pyrite matrix to render the gold amenable for recovery. The effects of various operation conditions and their change on acidic leac- hing have been studied in detail,and rational operation conditions for the main factors have also been given in this paper
出处
《化工冶金》
CSCD
北大核心
1989年第3期23-30,共8页
关键词
金精矿
黄铁矿型
催化氧化
酸浸
Catalytic oxidation Pressure leaching Pyrite gold concentrate Refactory gold concentrate
