工艺参数对电渗析法再生化学镀镍废液的影响  

Effects of process parameters on regeneration of spent electroless nickel plating bath by electrodialysis

作　　者：何湘柱[1,2] 宋清[1] 黄利勇[1] 张文俊[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]广州市二轻工业科学技术研究所,广东广州510663

出　　处：《电镀与涂饰》2013年第1期45-48,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,分析了温度、膜间距以及物料流速对镀液中HPO32-的去除率以及Ni2+、H2PO2-损失率的影响。得出适宜的工艺条件为:温度26℃,膜间距5cm,物料流速25s/L。对再生镀液所得镀层的性能进行了测试,并通过扫描电镜和X射线衍射进行了微观形貌及结构分析。结果表明:在适宜条件下再生镀液所得镀层的性能与新开缸镀液所得镀层相近,其微观形貌与新开缸镀液使用至第三周期所得镀层的微观形貌相似,该镀层具有非晶态结构。The spent electroless nickel plating bath was regenerated by electrodialysis. The effects of temperature, membrane interval, and flow rate on the removal rate of HPO3- and the loss rates of Ni^2＋ and H2PO2 were studied. The appropriate process conditions were obtained as follows： temperature 26 ℃, membrane interval 5 cm, and flow rate 25 s/L. The properties of the coating obtained from the regenerated bath were tested, and the microscopic morphology and structure were analyzed by scanning electron microscopy and X-ray diffraction. The coating obtained from the regenerated bath under the appropriate conditions has amorphous structure, properties comparable to that obtained from a fresh bath, and micro-morphology similar to that obtained from the bath used for 3 MTOs （metal turnovers）.

关 键 词：化学镀镍 废液 电渗析 再生 形貌 微观结构 

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]