网络出版日期: 2024-07-03
基金资助
中国地质调查局地质调查项目“铁钴锆等金属矿综合利用调查与技术增储”(DD20230353);河南省重点研发专项“豫西地区金铅锌多金属矿综合利用关键技术及示范”(221111320300)
Experimental Study on Beneficiation of a Gold-Silver Copper Sulfide Ore from Henan Province
Online published: 2024-07-03
对河南某含金银硫化铜矿开展了工艺矿物学和选矿试验研究。结果表明:矿石中主要有用元素铜含量为0.82%,伴生的有益组分为硫、金和银,主要有用金属矿物为黄铜矿、辉铜矿和黄铁矿,脉石矿物主要为石英。试验以新型药剂TB1021为铜硫分离捕收剂,采用混合浮选—铜硫分离工艺获得铜精矿和硫精矿,硫精矿再经摇床重选回收部分微细粒铜精矿。混合浮选采用丁基黄药和丁铵黑药组合捕收剂,总药剂用量为120 g/t,采用一粗两精三扫工艺流程;铜硫分离浮选采用新型捕收剂TB1021,采用一粗三精三扫工艺流程。最终获得铜品位为15.21%、铜回收率为80.13%,金品位为3.02 g/t、金回收率为66.51%,银品位为160.43 g/t、银回收率为41.82%的铜精矿,以及硫品位为49.13%、回收率为54.34%的硫精矿。
周立波, 曹飞, 曹进成, 吕良 . 河南某含金银硫化铜矿选矿试验研究[J]. 黄金科学技术, 2024 , 32(2) : 377 -386 . DOI: 10.11872/j.issn.1005-2518.2024.02.153
Copper is an important key metal raw material.It is of great significance to comprehensively recover and utilize copper ores containing precious metals such as gold and silver.The process mineralogy and beneficiation test of a copper sulfide ore containing gold and silver in Henan Province have been carried out.The results show that the main useful element copper content is 0.82%,the associated beneficial groups are sulfur,gold and silver,the main useful metal minerals are chalcopyrite,chalcocite,pyrite,gangue minerals are mainly quartz.The combined collector of butyl xanthoxanthate and butyl ammonium black is used in mixed flotation,the total amount of agent is 120 g/t,and the process flow of one coarse,two fine and three sweeps is adopted.The new collector TB1021 is used in copper sulfur separation flotation,and the process flow of one coarse,three fine and three sweeps is adopted.Finally,a copper concentrate with a copper grade of 15.21% and a copper recovery of 80.13%,a gold grade of 3.02 g/t,a gold recovery of 66.51%,a silver grade of 160.43 g/t and a silver recovery of 41.82%,and a sulfur concentrate with a sulfur grade of 49.13% and a recovery of 54.34% were obtained.
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