加压氧化—氰化浸出工艺从酸浸渣中提金试验研究

Experimental research on extraction gold using compression oxidation and cyanidation from acid-leached slag

对加压氧化—氰化浸出工艺从酸浸渣中提金进行了试验研究。研究结果表明 ,利用高效浸金设备进行氰化浸出 4h ,金的氰化浸出率可达 97.85 % ;其与常规氰化法相比 ,浸出时间缩短了32h ,浸出率提高了 2 .0 5 % ,NaCN用量减少了 4kg/t。

Experimental research on extraction gold using compression oxidation and cyanidation from acid leached slag demonstrated that gold extraction rate can be up to 97.85% when the samples are cyanided by high efficient gold extracting equipments for four hours.In comparison with common cyaniding method,extraction time of it decreased by 32 hours,extraction rate increased by 2.05%,the quantity of NaCN used decreased by 4kg/t.It is a gold extracting technique worth popularizing.