广东某高铜含砷金精矿处理工艺的试验研究

Experimetal Study of the Treatment Process about High-copper Gold Concentrate Containing Arsenic

为提高某高铜含砷金精矿的浸出效果,对碱预处理时间与石灰用量、磨矿细度、浸出速度等主要因素进行一系列的探索试验。结果表明,石灰与碱钠10∶1配合预处理16～14 h,矿浆浓度33%～35%,CN^-浓度为（0.9～1.2）×10^-5,磨矿细度-320目90%,浸出48 h能取得较好的效果。

In order to improve the leaching effect of a high-copper gold concentrate containing arsenic,we made a series of exploratory experiment about alkaline pretreatment time,lime dosage,grinding fineness,the leaching rate and other major factors.The results shown that we pretreat lime and alkali sodium with 10：1 for 16～14 hours,when the pulp concentration is 33%～35%,CN^-concentration is（0.9～1.2）×10^-5,grinding fineness of-320 mesh 90%,than leached them for 48 hours,could achieve better effect.