优化条件下氧化锌对高硫铝土矿溶出过程脱硫的影响  

Effect of ZnO Addition on Desulfurization Process of High Sulfur Bauxite under Optimal Conditions

作　　者：刘龙[1,2] 李军旗[1,2] 陈朝轶[1,2] 刘利[1,2] 魏国令 LIU Long LI Jun-qi CHEN Chao-yi LIU Li WEI Guo-ling(School of Material and Metallurgy, Guizhou University, Guiyang 550025, China Key Laboratory of Metallurgical Engineering and Process Energy Saving of Guizhou, Guiyang 550025, China)

机构地区：[1]贵州大学材料与冶金学院,贵阳550025 [2]贵州省冶金工程与过程节能重点实验室,贵阳550025

出　　处：《有色金属（冶炼部分）》2017年第1期28-31,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金(51264006;51474079);贵州省教育厅项目(黔教合重大专项字[2012]0002);贵州省校合作项目(LH[2014]7609);黔教合KY字(2015)334号;黔科合人才团队(2015)4005号

摘　　要：研究在优化条件下添加氧化锌对一水硬铝石型高硫铝土矿溶出过程脱硫的影响。结果表明,优化溶出条件下高硫铝土矿溶出过程中加入氧化锌后,硫溶出率随氧化锌加入量增加而降低,氧化铝溶出率基本不变。溶出液中S2-含量随氧化锌加入量增加而降低,其他价态硫不随氧化锌加入量变化。优化溶出条件下,不同硫含量矿样在添加氧化锌后溶出的氧化铝溶出率基本不变,而硫溶出率随着矿样硫含量的增加,不断增加。添加10%氧化锌适合处理硫含量在1.373%以下的高硫铝土矿。. Effect of ZnO addition on desulfurization process of high sulfur bauxite under optimal conditions was investigated. The results show that sulfur dissolution rate drops with increase of ZnO addition, while alumina dissolution rate remains unchanged. S2 content in solution drops with increase of ZnO addition, while other sulfur valence state has no change. Under the optimal conditions of dissolution, alumina dissolution rate of samples with different sulfur content remains unchanged after adding ZnO, while sulfur dissolution rate rises with increase of sulfur content. ZnO addition of 10% is suitable for high sulfur bauxite with sulfur content of 1. 373% below.

关 键 词：高硫铝土矿 氧化锌 溶出 脱硫 

分 类 号：TF821[冶金工程—有色金属冶金]