湿法炼锌铁矾渣工艺矿物学研究  

Process Mineralogy of Jarosite Slag of Zinc Hydrometallurgy

作　　者：巩燕飞 杨斌 闵小波 李俞良 李彦龙[2,3] 程亮 陶成[4] 鲁兴武 GONG Yanfei;YANG Bin;MIN Xiaobo;LI Yuliang;LI Yanlong;CHENG Liang;TAO Cheng;LU Xingwu(Baiyin Nonferrous Group Co.,Ltd.,Baiyin 730900,Gansu,China;Northwest Research Insti tute of Mi ning and Metallurgy,Baiyin 730900,Gansu,China;Technological Innovat ion Center of Comprehensi ve Utilization of Non-ferrous Mineral Resources of Gansu Provi nce,Baiyin 730900,Gansu,China;School of Metallurgy and Envi ronment,Central South Uni versity,Changsha 410083,China)

机构地区：[1]白银有色集团股份有限公司,甘肃白银730900 [2]西北矿冶研究院,甘肃白银730900 [3]甘肃省有色矿产资源综合利用技术创新中心,甘肃白银730900 [4]中南大学冶金与环境学院,长沙410083

出　　处：《有色金属(冶炼部分)》2025年第4期161-168,共8页Nonferrous Metals(Extractive Metallurgy)

基　　金：甘肃省科技重大专项-科技成果转化引导专项(24ZDCD002);甘肃省科技重大专项-工业类(23ZDGD002);国家重点研发计划项目(2019YFC1907303)。

摘　　要：以西北某铅锌冶炼厂湿法炼锌浸出过程黄钾铁矾工艺除铁产出的铁矾渣为研究对象,通过化学多元素分析、MLA、SEM、TG-DSC等测试分析方法,对铁矾渣的化学组成、矿物成分、铁、锌等有价矿物的赋存状态以及铁矾渣碳热还原过程进行了详细研究。结果表明,铁矾渣中的主要有价元素有铁、锌、铅等,铁主要赋存于铁矾中,锌主要以硫酸锌和铁酸锌存在,铅主要以白铅矿、铅铁矾、硫化铅、硫酸铅分散分布于铁矾渣中;通过TG-DSC测试分析,1400℃内,铁矾渣中的铁、锌、铅等物相可发生分解,通过碳热还原可实现各有价金属的回收利用。The jarosite slag produced from process of iron removal from the zinc leaching process in a lead-zinc smelter in northwest China was taken as the research object.The chemical composition,mineral composition and occurrence state of valuable minerals such as iron and zinc,and the carbothermal reduction process of jarosite slag were studied in detail by means of chemical multi-element analysis,MLA,SEM and TG-DSC.The results show that the main valuable elements in jarosite slag are iron,zinc,lead,etc.The iron mainly exists in ferrite,zinc mainly exists in zinc sulfate and zinc ferrite,and the lead mainly distributes in the ferrite slag by cerusite,plumbojarosite,lead sulfide and lead sulfate.Through TG-DSC analysis,iron,zinc and lead in jarosite slag can be decomposed within 1400℃,and the valuable metals can be recovered by carbothermal reduct ion.

关 键 词：湿法炼锌 铁矾渣 工艺矿物学 无害化处置 

分 类 号：TF813[冶金工程—有色金属冶金]