王水渣综合回收金银工艺研究

Research on Recycling of Gold and Silver from Aqua-Regia-Treated Gold Slag

针对金泥王水湿法处理过程中产生的王水渣,探索了使用氨水处理,然后氯化分金。结果表明,采用氨水分银-氯化分金全湿法工艺处理王水渣,具有工艺流程简单、金银损耗少等特点,银直收率可95%,金直收率98%,金银总回收率均99.8%以上。

The method of aqua-regia-treated residue treatment,which was produced in the process of gold mud treatment,and then residue treated by chloridizing separated gold was studied.The aqua regia gold mud in the process of aqua-regia-treated gold slag,explores the use of ammonia treatment it,then the tailings of gold chloride treatment points.The results showed that the treatment of aqua-regia-treated residue by ammonia solution leaching and chloridizing separated gold has the advantages of simple technological process,and the direct recovery rate of silver and gold reached 95%and 98%,separately.