分银工序影响分精银矿银含量的因素分析  

Analysis of Factors Affecting the Silver Content of Silver Concentrate in Silver Separation Process

作　　者：房孟钊 FANG Meng-zhao(China Nonferrous Mining Group Congo Mining Co.,Ltd.,Beijing 100000,China/Daye Nonferrous Metals Co.,Ltd.,Huangshi 435002,China)

机构地区：[1]中国有色矿业集团刚果矿业有限责任公司,北京100000 [2]大冶有色金属有限责任公司,湖北黄石435002

出　　处：《硫磷设计与粉体工程》2024年第4期16-19,I0001,共5页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：针对某厂外销的分银精矿银含量超标的问题,通过模拟分银工序的实际工况,选择不同的氨水配制方案,对分金渣与超标的分银精矿进行分银试验,验证了分银精矿银含量超标的原因不是回用氨水质量与分银精矿洗涤效果,而是分银过程中大量氨气的散排。For the problem of excessive silver content in silver concentrate exported by a factory,by simulating the actual working conditions of the silver separation process,different ammonia preparation schemes are selected,and silver separation tests are carried out on gold separation slag and excessive silver concentrate.It is verified that the reason for the excessive silver content in silver concentrate is not the quality of recycled ammonia water and the washing effect of silver concentrate,but rather the fugitive emission of large amount of ammonia gas during the silver separation process.

关 键 词：分银工序 分金渣 分银精矿 氨水 洗涤 散排 

分 类 号：TF111.52[冶金工程—冶金物理化学]