离子交换法去除甲基磺酸盐镀锡液中的二价铁离子  

Removal of iron(Ⅱ) ions from methanesulfonate tinning bath by ion exchange

作　　者：刘厚励 万一群[2] 陈建钧[1] 潘红良[1] 徐环昕 LIU Hou-li;WAN Yi-qun;CHEN Jian-jun;PAN Hong-liang;XU Huan-xin(School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学机械与动力工程学院,上海200237 [2]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《电镀与涂饰》2018年第11期480-483,共4页Electroplating & Finishing

摘　　要：选用HZ016型阳离子交换树脂吸附甲基磺酸盐镀锡液中的锡和铁离子,以2 mol/L硫酸溶液洗脱树脂,通过调节洗脱液的p H来回收锡。结果表明,动态吸附锡和铁离子的效率均在95%以上,高于静态吸附。确定了吸附时树脂质量与镀液体积之比为1 g∶2 m L,洗脱时树脂质量与硫酸溶液体积之比为1 g∶4 m L。当调节洗脱液的p H至3.8时,锡的回收率达到87.5%,铁的残留率约为3%。Tin and iron ions in methanesulfonate tinning solution were adsorbed by HZ016 cation-exchange resin, and then eluted with a 2 mol/L H2SO4 solution. The tin ions were reclaimed from the eluent by adjusting its p H. The result showed that the adsorption efficiencies of tin and iron ions are more than 95% under dynamic condition, which are higher than that under static condition. The ratio of resin weight to plating solution volume was determined to be 1 g ： 2 m L for adsorption, and the ratio of resin weight to H2 SO4 solution volume was 1 g ： 4 m L for elution. The recovery of tin was 87.5%, and the residual rate of iron was about 3% when adjusting the p H of eluent to 3.8.

关 键 词：电镀锡 甲基磺酸 离子交换树脂 吸附 洗脱 除铁 

分 类 号：TQ153.13[化学工程—电化学工业]