无铵电解金属锰的进展研究  

Advance on Electrolytic Manganese Metal Ammonium-free Process

作　　者：陶长元[1] 费珊珊[1] 刘作华[1] 杜军[1] 范兴[1] 李敏[1] 陈燕[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044

出　　处：《中国锰业》2011年第3期1-5,共5页China Manganese Industry

基　　金：国家自然科学基金(51074200);国家重点基础研究发展计划(973计划)(2011CB933300)资助项目

摘　　要：近年来我国电解金属锰生产技术在节能减排方面取得了明显的进步。在传统的水溶液体系中电解时需要加入氨水来调节浸出液pH,加入硫酸铵来增加合格液中锰离子的稳定性和溶液的导电性,这将导致含氨氮废渣和废水的产生,造成严重的环境污染。与传统的水溶液相比,以离子液体为电解质的电解体系显示出良好的应用前景,他具有更宽的电化学窗口,理论电流效率可达100%,并且体系中不加入氨水和硫酸铵,可以实现无铵电解工艺。综述了Mn及Mn合金在离子液体中电解的研究进展,并指出其未来的发展方向。In recent years, the production technology of EM M has made great achievements in energy-saving and emission-reduction. In traditional aqueous electrolyte system,pH is adjusted by aqueous ammonia, while the stability of Mn^2 ＋ and the conductivity of aqueous electrolyte are both improved by ammonium sulfate, which results in the severe environmental pollution,because of a mass of waste residue and effluent that contains ammonia ni- trogen generated in the process. However,compared with traditional aqueous system, the electrolyte system with ionic liquids as electrolysis has exhibited excellent application prospect, due to its wide electrochemistry window and 100% theory current efficiency. More importantly, it could realize the non-ammonium electrolysis process, because of aqueous ammonia and ammonium sulfate being not necessarily added into. In this paper, not only the advance researches on the application of ionic liquids in Mn and manganese alloys are reviewed, but also the development direction is pointed out.

关 键 词：锰 锰合金 无铵电解 离子液体 

分 类 号：TF111.52[冶金工程—冶金物理化学]