青海省抗得弄舍矿区Ⅴ1金多金属矿体矿石工艺矿物学研究

摘要

The paper mainly studies on technological minerology of polymetallic gold ore of zone Ⅴ1 of Kangde nongshe deposit in Qinghai province.The results showed that mineral composition of the ore is complex and its primary valuable elements are gold and silver which exist in the form of sulphides.Gold often presents in the form of electrum,native gold and kustelite.Silver mostly is found in such deposits as polybasite,pearceite,some of them in native silver deposit and kongsbergite deposit.The embedded characteristics of the ore is complicated,fine disseminated and often has close relation with sulphide.Test for mineral monomer dissociation showed,when grinding fineness of-0.074 mm counts up to 90％,the primary sulphides can fully dissociated and the valuable elements be better recovered.%对青海省抗得弄舍矿区Ⅴ1金多金属矿石进行了工艺矿物学研究.结果表明,矿石矿物组成复杂,矿石中主要的有价元素回收对象为金、银,主要以硫化物形式存在.金以银金矿、自然金及金银矿系列矿物形式存在,银主要以硫锑铜银矿及硫砷铜银矿形式存在,其次为自然银及汞银矿.矿石的矿物嵌布特征复杂,粒度偏细,硫化物紧密连生;矿物单体解离测试表明,当磨矿细度为-0.074 mm占90％时,各主要硫化物均能较充分解离,有利于有价元素的综合回收利用.