烟化炉烟灰硫酸化焙烧-低酸浸出试验研究  

Experimental Study on Sulfating Roasting and Low Acid Leaching of Fuming Furnace Ash

作　　者：王平 周国杰 WANG Ping;ZHOU Guojie(Jiangxi Zili Environmental Protection Technology Co.,Ltd.,Fuzhou 344000,China;Jiangxi Nonferrous Metal Recycling Technology Innovation Center,Fuzhou 344000,China)

机构地区：[1]江西自立环保科技有限公司,江西抚州344000 [2]江西省有色金属再生利用技术创新中心,江西抚州344000

出　　处：《湖南有色金属》2023年第2期31-33,共3页Hunan Nonferrous Metals

摘　　要：试验研究了硫酸化焙烧-低酸浸出工艺从烟化炉中浸出锌,考察了焙烧条件(酸料质量比、焙烧温度、焙烧时间)以及浸出条件(温度,时间)对锌浸出率的影响。结果表明,在焙烧温度600℃,焙烧时间1 h,98%浓硫酸与烟化炉烟灰质量配比为60%的最佳焙烧条件,浸出时间15 min,浸出温度20℃,锌浸出率可达93.20%。The sulfuric acid roasting low acid leaching process was studied to leach zinc from fuming furnace,and the effects of roasting conditions(mass ratio of acid to soot,roasting temperature,roasting time)and leaching conditions(temperature,time)on zinc leaching rate were investigated.The results showed that the zinc leaching rate could reach 93.20%under the optimum roasting conditions of 600℃roasting temperature,1.0 h roasting time,60%mass ratio of 98%concentrated sulfuric acid to smoke furnace ash 60%,and leaching time 15 min and leaching temperature 20℃.

关 键 词：焙烧 烟化炉烟尘 锌 浸出率 

分 类 号：TF803.21[冶金工程—有色金属冶金]