离子交换法除去镀锌三价铬彩色钝化液中的金属杂质  

Removal of metallic impurities from iridescent chromium(Ⅲ)passivation bath for zinc coatings by ion exchange

作　　者：张小勇 李达 李文绪 潘雄 夏俊成 曹聚涛 韩秀台 刘新伟 ZHANG Xiaoyong;LI Da;LI Wenxu;PAN Xiong;XIA Juncheng;CAO Jutao;HAN Xiutai;LIU Xinwei(Henan North Starlight Mechanical and Electrical Co.,Ltd.,Dengzhou 474150,China;SurTec Metal Surface Treatment Technology(Hangzhou)Co.,Ltd.,Hangzhou 311232,China)

机构地区：[1]河南北方星光机电有限责任公司,河南邓州474150 [2]赛德克金属表面处理技术(杭州)有限公司,浙江杭州311232

出　　处：《电镀与涂饰》2022年第23期1656-1663,共8页Electroplating & Finishing

摘　　要：采用强酸性阳离子交换树脂除去镀锌三价铬彩色钝化液中积累的Fe^(3+)杂质,采用锌配位剂除去钝化液中的Zn^(2+)杂质。处理后可以大大减少钝化液的更换频次,减少废液的排放量,节约大量的成本。介绍了相关原理及工艺过程。The Fe^(3+)impurities accumulated in iridescent chromium(Ⅲ) passivation bath for zinc coatings were removed by using a strongly acidic cationic exchange resin,and the Zn^(2+) impurities in it were removed by adding a zinc complexing agent.Therefore,the replacement frequency of passivation bath and the discharge of spent passivation bath were greatly reduced,saving a large amount of costs.The related principles and treatment processes were introduced.

关 键 词：镀锌 三价铬彩色钝化 离子交换 阳离子树脂 吸附 再生 锌配位剂 除铁 

分 类 号：TQ153.15[化学工程—电化学工业] TG174.45[金属学及工艺—金属表面处理]