负载纳米ZnS阳离子树脂选择性去除浓锌溶液中痕量级Cu^(2+)和Cd^(2+)  

Selective Removal of Trace Levels of Cu^(2+) and Cd^(2+) in Concentrated Zinc Solution with Loaded Nano-ZnS Cationic Resin

作　　者：朱佳俊 修祎帆 孙建刚 黄凯[1] ZHU Jia-jun;XIU Yi-fan;SUN Jian-gang;HUANG Kai(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《有色金属（冶炼部分）》2022年第5期14-25,共12页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2019YFC1907403)。

摘　　要：通过将ZnS纳米粒子负载在阳离子树脂D001中制备负载纳米ZnS阳离子树脂吸附剂,即ZnS@D001,吸附湿法冶金锌浸出液中共存杂质金属离子(如Cu^(2+)和Cd^(2+))。在10 g/L Zn^(2+)的合成溶液中实现了对Cu^(2+)的高度优先吸附,而对Cd^(2+)没有任何吸附效果。吸附后的ZnS@D001树脂可以被1 mol/L HNO_(3)有效解吸,然后再次加载ZnS。同时利用含有Cu^(2+)和Cd^(2+)的锌离子溶液进行固定床柱吸附,经过吸附处理后,可以有效去除溶液中铜杂质,纳米ZnS树脂可作为锌冶炼行业深度净化锌液的潜在功能材料。Nano-ZnS loaded cationic resin adsorbent,namely ZnS@D001,was prepared by loading ZnS nanoparticles in cationic resin D001 and used to absorb coexisting impurity metal ions(such as Cu^(2+)and Cd^(2+))in hydrometallurgical zinc leaching solution.High priority adsorption of Cu^(2+)were achieved in 10 g/L Zn^(2+)synthetic solution,but there was no adsorption effect on Cd^(2+).The adsorbed ZnS@D001 resin can be effectively desorbed by 1 mol/L HNO_(3),and then loaded with ZnS again.At the same time,the fixed bed column adsorption of synthetic zinc ion solution containing Cu^(2+)and Cd^(2+)metal ion impurities were tested.After treatment,copper impurity content in effluent can be effectively removed,which can be used as a potential functional material for deep purification of zinc liquid in the zinc smelting industry.

关 键 词：纳米粒子 离子交换树脂 D001 杂质金属离子 Cu^(2+) Cd^(2+) 唐南膜效应 

分 类 号：X705[环境科学与工程—环境工程] TF813[冶金工程—有色金属冶金]