提高含砷金精矿回收率的生产实践

Productive practice of increasing recovery of arsenic-bearing gold concentrate

某含砷精矿采用细菌氧化—氰化浸出工艺,回收率只能达到70%,而将其工艺流程进行优化改造后,金的回收率可达到89%,获得了较好的经济效益。

Some arsenic-bearing refractory gold concentrate was treated by bacterial oxidation and cyaniding leaching, the gold leaching rate only reached 70%. By the optimization of pretreatment process, the gold leaching rate reached 89%, and quite good economic benefit was obtained.