稀土电解槽阳极炭块表面腐蚀的研究  

Study on Surface Corrosion of Anode Carbon Blocks in Rare Earth Electrolytic Cell

作　　者：刘中兴[1] 胡永胜[2] 伍永福[1,3] 王冠瑞[1] 徐子谦[2] 

机构地区：[1]内蒙古科技大学能源与环境工程学院,内蒙古包头014010 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [3]内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室,内蒙古包头014010

出　　处：《有色金属（冶炼部分）》2014年第5期45-48,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51164025;51064020);内蒙古自治区自然科学基金项目(2011MS0703)

摘　　要：对稀土电解槽阳极炭块因为发生阳极反应而产生的表面腐蚀进行研究。结果表明,经过一个生产周期后,不同阳极炭块试样的孔隙率大致保持在0.006 9±0.001 4,但是比表面积差距较大,说明阳极炭块在反应量上基本相同,但在反应进行的宏观方向上差距较大。过大的比表面积会造成阳极效应,发生阳极放电,在生产过程中要保证添加物的尺寸应尽量小且与炭块混合均匀。The surface corrosion of anode carbon blocks in rare earth electrolytic ceil caused by anode reac- tion was investigated. The results show that after a production cycle （1 h）, the porosity of different anode carbon block sample ranges between 0. 006 9±0. 001 4, but with a big difference of specific surface area of sample. This indicates that the reaction amount in anode carbon block is basically same and regional distri- bution is equal, the difference in direction of reaction is big. Big specific surface area tends to anode effect and anode discharging. Size of additives should be as small as possible and be evenly mixed with carbon block.

关 键 词：稀土电解槽 阳极炭块 孔隙率 表面腐蚀 

分 类 号：TF845[冶金工程—有色金属冶金] TF111.52