文献类型：会议论文

英文题名：The adverse effects of MgO on magnesium electrolyte properties and improvement by adding lanthanum chloride

作者：Li, Bing[1];Li, Jun[1];Liu, Jiangning[1];Yu, Jianguo[1]

机构：[1]East China Univ Sci & Technol, 130 Meilong Rd, Shanghai 200237, Peoples R China

会议论文集：Magnesium Technology Symposium 2008

会议日期：MAR 09-13, 2008

会议地点：New Orleans, LA

语种：英文

外文关键词：Fluorspar - Lanthanum compounds - Electrolytes - Magnesium - Potassium compounds - Sodium chloride - Calcium fluoride

摘要：In this paper MgO as impurity was added to the traditional quadribasic magnesium electrolyte, namely MgCl2(12%)-CaCl2(18% NaCl(40%)-KCl(30%). The effects of MgO on electrolyte physicochemical properties such as conductivity, density and surface tension and the current efficiency have been studied. Additive of LaCl3 were fed to the above electrolyte and can consume the impurity MgO by chemical reaction, and the effects of both LaCl3 and flourides on the electrolyte properties have been investigated. Electrolyte Compositions nave been evaluated by current efficency obtained by electrowinning magnesium from melt with MgO, LaCl3 and CaF2.