文献类型：会议论文

英文题名：Corrosion Resistance of Graphite Anode for Magnesium Electrolyzers

作者：Li, Bing[1];Lou, Jingwei[1];Zhang, Can[1];Yan, Mengfan[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

会议论文集：Magnesium Technology Symposium 2010

会议日期：FEB 14-18, 2010

会议地点：Seattle, WA

语种：英文

外文关键词：Corrosion Resistance; Graphite; Magnesium

摘要：In this paper, the basic properties for several graphite materials, made of different ingredients such as a needle coke, a composite of a needle coke and a petroleum coke, a fine petroleum coke and a high-purity petroleum coke with different processing method were tested. And then they were employed as anodes for magnesium electrolyzers and electrolysis experiments were conducted to examine their corrosion-resistances during electrowinning of magnesium from MgCl2-KCl-NaCl melts at high temperature. After electrolysis, SEM was used to observe the morphology of anode and analyze its corrosion-resistance. Results showed that the corrosion-resistance of graphite anode were related to the components, bulk density, apparent porosity, compressive strength and processing method. The graphite anode consisting of a needle coke showed a good corrosion-resistance in chloride melts at 720-730 degrees C for 6h.