基于膜法钴电积工艺中阳离子交换膜改性  

Modification of Cation Exchange Membrane Used in Cobalt Electrowinning

作　　者：南君 马腾 王三反[1,2] 黄全江[1,2] 丛琳 NAN Jun;MA Teng;WANG Sanfan;HUANG Quanjiang;CONG Lin(School of Environmental and Municipal Engineering, Lanzhou Jiaotong University ,Lanzhou 730070, China;Engineering Research Center for Cold and Arid Regions Water Resource Comprehensive Utilization, Ministry of Education, Lanzhou 730070, China;China Municipal Engineering Northeast Design ＆ Research Institute Co. , Ltd, Changchun 130000, China)

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070 [2]寒旱地区水资源综合利用教育部工程中心,兰州730070 [3]中国市政工程东北设计研究总院有限公司,长春130000

出　　处：《有色金属工程》2018年第2期69-73,共5页Nonferrous Metals Engineering

基　　金：国家科技支撑计划项目(2015BAE04B01);国家自然科学基金资助项目(21466019);兰州交通大学优秀平台支持(201606)

摘　　要：基于表面涂覆改性的方法,使用吡咯为改性单体对阳离子交换膜进行改性,通过对改性前后的膜进行扫描电子显微镜(SEM)、傅立叶红外光谱仪(FTIR)及氯离子泄露率的测定表征膜的改性效果。结果表明,在吡咯与氯化铁的浓度比4∶1、掺杂剂为1 mol/L盐酸、单体反应时间1 h、氧化聚合时间4 h的条件下,改性效果最佳,氯离子泄漏率降低最大,降低了8.4%。Cation exchange membrane was modified with pyrrole as modified monomer based on surface coating modification. The modification effect of membrane before and after modification was characterized by SEM,FTIR and chloride ion leakage rate. The results show that the best modification effect was obtained and chloride leakage rate droped by a maximum of 8. 4 point percent under the conditions including concentration ratio of pyrrole to ferric chloride of 4 ︰ 1,dopant of 1 mol/L HCl,monomer reaction time of 1 h,and oxidation polymerization time of 4 h.

关 键 词：聚吡咯 阳离子交换膜 表面涂覆改性 氯离子泄露率 

分 类 号：TQ050.425[化学工程]