含铜金矿的氯水浸出,锑粉置换富集提金工艺研究

Technological study on extracting gold by leaching of copper-bearing gold ore with chlorine water followed by antimony powder precipitation in pregnant solution

This paper described the technological study on extracting gold from copper-bearing ore disseminated with fine grained gold somewhere in Yulin Prefecture, Guangxi. An operation program of small scale was recommended and put into production with better result.The main process flow was calcine leaching of ore with dilute sulfuric acid for the separation of copper, then, leaching the slag with chlorine water followed by aantimony powder precipitation in pregnant solution. The gold loaded antimony powder was washed with water and dried, then, sending to melt into an alloy of antimony and gold. The alloy was then put on a grey utensil for smelting and finally cast into finished gold.