概述马坝冶炼厂湿法炼铜浸出渣是一种含铜物料,采用氰化法回收黄金时遇到了铜氰络合物的严重影响,大大降低了氰化浸出率。该厂采用贫液返回浸出,锌丝置换的工艺流程(图1)。投产前曾进行试验,氰化浸出率为94～98%,投产初期氰化浸出率可达到90%以上,但浸出 Overview Maba smelting hydrometallurgical copper leaching residue is a copper-containing material, the use of cyanide recovery of gold met the serious impact of copper cyanide complexes, greatly reducing the cyanide leaching rate. The plant used lean liquid back to leaching, zinc wire replacement process (Figure 1). Put into operation before the test, cyanide leaching rate of 94 ~ 98%, the initial production of cyanide leaching rate can reach more than 90%, but the leaching