铝在酸性AlCl_(3)-EMIC和AlCl_(3)-BMIC离子液体中的阳极溶解  

Anodic dissolution of aluminum in acidic AlCl_(3)-EMIC and AlCl_(3)-BMIC ionic liquids

作　　者：杨晓晴 郑勇[4] 王倩[1,2] 李玉[3] 李涛[3] 任保增[3] YANG Xiaoqing;ZHENG Yong;WANG Qian;LI Yu;LI Tao;REN Baozeng(Beijing Key Laboratory of Ionic Liquids Clean Process,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;Innovation Academy for Green Manufacture Institute,Chinese Academy of Sciences,Beijing 100190,China;School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China;College of Chemical and Environmental Engineering,Anyang Institute of Technology,Anyang 455000,China)

机构地区：[1]离子液体清洁过程北京市重点实验室,中国科学院过程工程研究所,北京100190 [2]中国科学院绿色过程制造创新研究院,北京100190 [3]郑州大学化工学院,河南郑州450001 [4]安阳工学院化学与环境工程学院,河南安阳455000

出　　处：《中国有色冶金》2024年第1期1-7,共7页China Nonferrous Metallurgy

基　　金：中国科学院绿色过程制造创新研究院自主部署项目(IAGM2022D01);国家自然科学基金资助项目(22378400);河南省自然科学基金资助项目(232300421209)。

摘　　要：1-乙基-3-甲基咪唑氯盐(EMIC)和1-丁基-3-甲基咪唑氯盐(BMIC)与氯化铝(AlCl_(3))形成的离子液体是电解铝用离子液体中最具有工业应用前景的2种离子液体。本文采用线性伏安、计时电流、计时电位、恒电压电解、恒电流电解等电化学实验方法对比搅拌和不搅拌条件下,铝在酸性AlCl_(3)-EMIC和AlCl_(3)-BMIC 2种离子液体中的阳极溶解,以筛选出较优的电解质体系,并探究搅拌、温度、电流密度、电位等工艺参数对电解过程的影响,为工业放大提供基础数据。The ionic liquids formed by 1-ethyl-3-methylimidazole chloride(EMIC) and 1-butyl-3-methylimidazole chloride(BMIC) with aluminum chloride(AlCl_(3)) are the most promising ionic liquids for electrolytic aluminum. In this paper, linear voltammetry, chronoamperometry, chronopotentiometry, constant-voltage electrolysis, constant-current electrolysis and other electrochemical experiments are used to compare the anodic dissolution of aluminum in acidic AlCl_(3)-EMIC and AlCl_(3)-BMIC ionic liquids under stirring and non-stirring conditions, in order to screen out a better electrolyte system. The effects of stirring, temperature, current density, potential and other process parameters on the electrolytic process are investigated to provide basic data for industrial scale-up.

关 键 词：铝 离子液体 电沉积 阳极钝化 极限电流密度 搅拌 电解 

分 类 号：TF821[冶金工程—有色金属冶金]