【摘要】 为了有效回收某铜矿石中伴生的低品位金和银,利用矿物自动分析仪MLA对其进行了系统的工艺矿物学研究,结果表明,该矿石中的金、银都以独立矿物存在,其中金矿物主要为自然金、银金矿和碲金银矿,银矿物主要为碲银矿和硒银矿,粒度均呈微细粒产出,金的载体矿物主要为硫化铜矿物,银的载体矿物主要为脉石,因此,金易回收于铜精矿中,银易损失于尾矿中。更多还原

【Abstract】 In order to recover low-grade associated Au and Ag in a copper ore effectively,systematic process mineralogy research is carried out on the ore by using MLA. The results show that gold,silver are both exist as independent minerals. Au minerals are mainly native gold,electrum and petzite. Ag minerals are mainly hessite and naumannite. Au minerals disseminated as micro-fine particles and usually included in copper sulfide minerals. Ag minerals disseminated also as micro-fine particles and usually included in gangue minerals. Therefore,it is easy for Au to be riched in copper concentrate,while Ag is easily lost in the flotation tailings.更多还原