软锰矿浸出液有机物对锰电解电流效率的影响  

Effect of Organics in Pyrolusite Leaching Solutions on Manganese Electrolysis Current Efficiency

作　　者：周泽广[1,2] 明宪权 卢国贤 袁爱群 钟磊[1,2] 郭雨桐 ZHOU Zeguang;MING Xianquan;LU Guoxian;YUAN Aiqun;ZHONG Lei;GUO Yutong(Key Laboratory of New Technology of Chemical and Biological Transformation Processes, Guangxi University for Nationalities,Nanning 530006,China;School of Chemistry and Chemical Engineering,Guangxi University for Nationalities,Nanning 530006,China;CITIC Dameng Mining Industries Limited,Nanning 530022,China)

机构地区：[1]广西民族大学化学与生物转化过程新技术重点实验室,广西南宁530006 [2]广西民族大学化学化工学院,广西南宁530006 [3]中信大锰矿业有限责任公司,广西南宁530022

出　　处：《华侨大学学报（自然科学版）》2018年第5期701-705,共5页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(41461092);广西高校锰深加工校企科技创新平台项目(GJXQ2013)

摘　　要：通过电解小试实验,研究甲酸、乙酸、柠檬酸、酒石酸、乌头酸、葡萄糖及蔗糖等有机物对锰电解电流效率(MECE)的影响.结果表明:甲酸、乙酸和柠檬酸等有机酸在一定质量分数范围内均可提高锰电解电流效率,达73%左右,最高可达77.9%,但有机酸质量分数过高,锰电解电流效率反而降低;葡萄糖和蔗糖粘度较高、质量分数过大,会阻碍电解液中离子的迁移,从而导致锰电解电流效率下降.The effects of organics such as formic acid,acetic acid,citric acid,tartaric acid,aconitic acid,glucose and sucrose on the manganese electrolysis current efficiency(MECE)were studied.The results show that within a certain range of concentration,organic acids such as formic acid,acetic acid and citric acid can improve the MECE to about 73%,and the highest MECE reaches 77.9%.However,when the concentration is too high,the MECE decreases.Moreover,the high viscosity and large mass fraction of glucose and sucrose hinder the ion transportation,which consequently leads to the reduction of current efficiency.

关 键 词：软锰矿 电解锰 有机酸 电解电流效率 

分 类 号：TF813[冶金工程—有色金属冶金]