黄金科学技术 ›› 2019, Vol. 27 ›› Issue (5): 770-776.doi: 10.11872/j.issn.1005-2518.2019.05.770
Wenping ZHANG(),Mingming CAI,Chao XU
摘要:
某含金原生矿石的金品位为5.36×10-6,金是主要的目标回收矿物。为了查明影响选冶工艺指标的主要因素,对该矿石开展了工艺矿物学研究。通过矿物自动分析仪,对矿石的矿物组成、矿物嵌布特征、金的赋存状态、含金矿物的粒度和含金矿物解离度进行了系统研究,获得了目标矿物的工艺矿物学相关参数。研究结果表明:该矿石中主要金矿物是自然金和银金矿;矿石中金的粒度以细粒和微细粒为主,分别占49.43%和50.57%;金矿物的赋存状态以裸露金为主,占72.71%,包裹金占27.29%。通过分析研究结果得出:提高磨矿细度,使包裹金裸露出来,同时,在浸出之前,采取相应措施对毒砂进行氧化预处理,去除毒砂在浸金过程中的不利影响,有助于提高金的回收率。
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