氰化尾渣中微细粒低品位金回收技术研究与应用  

Research and application of micro-fine low-grade gold recovery technology in cyanide tailings

作　　者：陈路楠 徐学佳 豆娜 Chen Lunan;Xu Xuejia;Dou Na(Zhaojin Mining Industry Co.,Ltd.;Shandong Guohuan Solid Waste Innovation Technology Center Co.,Ltd.)

机构地区：[1]招金矿业股份有限公司 [2]山东国环固废创新科技中心有限公司

出　　处：《黄金》2024年第2期41-46,共6页Gold

摘　　要：针对某黄金生产企业氰化尾渣选硫生产过程中,微细粒低品位金无法回收利用造成资源浪费情况,开展系统试验研究。以现有氰化尾渣选硫系统为基础,以氰化尾渣及硫精矿为试验对象,进行金回收技术方案条件试验,最终形成氰化尾渣经现有选硫系统进行金、硫富集后,进行旋流器分级生产高金硫精矿和低金硫精矿技术方案。该技术方案成本低、易于工业化实施。现场改造后,产出金品位大于3.0 g/t、硫品位大于46.5%的高金硫精矿和硫品位大于46.5%的低金硫精矿2种产品,最大限度地提高了经济效益。In response to the issue of resource waste caused by the inability to recover and utilize microfine low-grade gold in the sulfur separation operation process of cyanide tailings in a gold production enterprise,a systematic experimental study was conducted.Based on the existing sulfur separation system,cyanide tailings and sulfur concentrate were used as experimental objects to test the gold recovery conditions of the technical scheme,forming a technical scheme for producing high-grade gold and sulfur concentrate and low-grade gold and sulfur concentrate through the enrichment of cyanide tailings by the existing sulfur separation system and further classification with a hydrocyclone.The scheme has the advantages of low cost and easy implementation for industrialization.After on-site transformation,two products were produced:high-grade gold and sulfur concentrate with a gold grade greater than 3.0 g/t and a sulfur grade greater than 46.5%,and low-grade gold and sulfur concentrate with a sulfur grade greater than 46.5%,which maximized the economic benefits.

关 键 词：氰化尾渣 微细粒 低品位金 旋流器 金回收 

分 类 号：TD926.4[矿业工程—选矿]