电渗析法再生化学镀镍废液膜的选择及电流和时间的影响  

Selection of membrane for regeneration of spent electroless nickel plating bath by electrodialysis and analysis on the effects of current density and treatment time

作　　者：何湘柱[1,2] 宋清[1] 赵国鹏 

机构地区：[1]广东工业大学轻工化工学院,广东广州510006 [2]广州二轻工业科学技术研究所,广东广州510663

出　　处：《电镀与涂饰》2012年第9期33-36,共4页Electroplating & Finishing

基　　金：国家自然科学基金项目(50004003);广东省中小企业创新项目(2009CY129);广州市科技建设项目(2069903);广东省211工程建设项目(412110904)

摘　　要：采用电渗析法研究了化学镀镍废液的再生工艺,研究分析了离子交换膜的选择方法,以及电流密度和处理时间对镀液中不同离子去除(损失)率的影响。结果表明,以日本的CMS离子交换膜和上海的异相阴离子交换膜组成的膜对作为离子交换膜,在65mA/cm2下对化学镀镍废液处理48h时的再生效果较好,23HPO的去除率达60.86%,22HPO和Ni2+的损失率分别为63.13%和1.20%。经本法处理并补加有效成分22HPO之后,可从再生化学镀镍液中制得性能良好的镍镀层,即化学镀镍废液得到回用。The spent electroless nickel plating bath was regenerated by electrodialysis. The effects of the type of ion exchange membrane as well as the current density and treatment time on the removal or loss rate of various ions in bath were studied. The results showed that the appropriate regeneration effect was obtained after electrodialysis by using the membrane consisting of a CMS ion exchange membrane （made in Japan） and a heterogeneous ion exchange membrane （made in Shanghai, China） at a current density of 65 mA/cm^2 for 48 h. The removal rate of HPO_3^2- was up to 60.86%, and the loss rate was 63.13% for H2PO2 and 1.20% for Ni2＋. The regenerated electroless nickel plating bath produced nickel coatings with good properties after the replenishment of H2PO2-as an active ingredient.

关 键 词：化学镀镍 老化液 电渗析 再生 离子交换膜 

分 类 号：TQ153.12[化学工程—电化学工业] X781.1[环境科学与工程—环境工程]