山东某浮选金精矿氰化浸出实验研究

Study on Cyanide Leaching of a Floating Gold Concentrate in Shandong

山东某浮选金精矿工艺矿物学研究表明,该精矿主要金属矿物为黄铁矿,铜、铅、锌、砷等金属元素含量都比较低,对该精矿采用氰化浸出金、银比较有利,浮选精矿含金品位平均为21.86 g/t,含银10.5 g/t、硫47.16%。矿物组成比较简单。实验结果表明,采用直接氰化搅拌浸出可以获得金浸出率为95.06%,银浸出率71.43%的良好指标。

The process mineralogy study of a gold flotation concentrate in Shandong province shows that the main metal mineral of the concentrate is pyrite,and the content of copper,lead,zinc,arsenic and other metal elements is relatively low.It is more favorable for the cyanide leaching of gold and silver from the concentrate.The average gold grade of the flotation concentrate is 21.86 g/t,silver 10.5 g/t,sulfur 47.16%.The mineral composition is relatively simple.The results show that the gold leaching rate of 95.06% and silver leaching rate of 71.43% can be obtained by direct cyanide stirring leaching.