杂铜阳极泥回转窑氧化焙烧酸浸工艺研究  

Study on Rotary Kiln Oxidizing Roasting—Acidic Leaching of Scrap Copper Anode Slime

作　　者：徐小锋 李冲[1] 崔沐 宋珍珍[1] XU Xiao-feng;LI Chong;CUI Mu;SONG Zhen-zhen(China ENFI Engineering Co., Ltd., Beijing 100038, China;College of Resource Processing and Bioengineering, Central South University, Changsha 410083,China)

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属（冶炼部分）》2020年第4期22-25,46,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFC1902501)。

摘　　要：采用回转窑氧化焙烧—酸浸工艺回收杂铜阳极泥金属铜,研究了不同试验条件对铜浸出率的影响。结果表明:在氧化焙烧温度700℃、焙烧时间20 min、原料粒度-5 mm、空气流量0.5 L/min的条件下,铜浸出率高达97.10%,镍浸出率>90%,大部分铅、锡、锑、铋及贵金属金、银、钯残留在浸出渣中,可以作为后续提取有价金属及贵金属的原料。Copper was extracted from scrap copper anode slime by rotary kiln oxidizing roasting,acid leaching.Effects of process conditions on copper leaching rate were investigated.The results show that under the optimum conditions including rotary kiln oxidizing coasting temperature of 700℃,holding time of 20 min,particle size of-5 mm,and air flow rate of 0.5 L/min,copper leaching rate is 97.10%,nickel leaching rate is 90%above,and most of Pb,Sn,Sb,Bi,Au,Ag,and Pd remain in leaching residue,providing raw materials for subsequent extraction of valuable metals and precious metals.

关 键 词：回转窑 氧化焙烧 杂铜阳极泥 铜 酸浸 

分 类 号：TF811[冶金工程—有色金属冶金]