ISP工艺烟化炉渣选铜的研究  

Experimental study on floating copper from the fuming furnace slag produced by ISP process

作　　者：于建忠[1] 王德海 殷勤生[1] YU Jian-zhong;WANG De-hai;YIN Qin-sheng

机构地区：[1]白银有色集团股份有限公司第三冶炼厂,甘肃白银730900 [2]白银有色红鹭资源综合利用科技有限公司甘肃白银730900

出　　处：《中国有色冶金》2019年第3期9-13,共5页China Nonferrous Metallurgy

摘　　要：ISP工艺冶炼铅锌,最大的优势是可以处理高含杂铅锌精矿、铅锌氧化物料等,在Cu回收过程中,部分Cu损失在最终弃渣——烟化炉渣中,损失率大约为1%。本文对冷却方式及缓冷时间、炉渣矿物学性质、磨矿细度等对铜回收率的影响进行了试验分析,试验结果表明:在烟化炉渣自然缓冷48h以上,控制前期冶炼环节的工艺技术条件尽量降低渣中硫化铜含量,磨矿细度为90%-325目条件下进行了闭路试验,试验中铜精矿品位可达到19.31%,回收率可达到81.13%。该试验结果说明缓冷-浮选法是ISP工艺烟化炉渣回收铜可行的工艺方法。The biggest advantage of ISP process for smelting lead and zinc is that it can handle lead-zinc concentrate with high-impurities content,lead-zinc oxide materials,etc.In the process of Cu recycling,part of the Cu loses in the final waste slag,fuming furnace slag,and the loss rate is approximately 1%.In this paper,the effects of cooling mode and slow cooling time,slag mineralogical properties and grinding fineness on copper recovery were analyzed. The closed circuit experiment was carried out under the conditions of the smelting furnace slag naturally slows down for more than 48 h,decreasing the copper sulfide content in the slag by controlling the technical conditions of the previous smelting process,grinding fineness 90%-325 mesh.The experimental results showed that the copper concentrate grade could reach 19.31%,and the recovery rate could reach 81.13%,so the slow cooling-flotation method was feasible for recovering copper from the fuming furnace slag in ISP process.

关 键 词：ISP工艺 高含杂铅锌精矿 烟化炉渣 铜回收率 

分 类 号：TF811[冶金工程—有色金属冶金] X758[环境科学与工程—环境工程]