粉煤灰酸法提镓探索研究  

Study on acid pre-extraction process for gallium from fly ash

作　　者：白光辉[1] 滕玮[1] 孙亦兵 王香港[1] 秦晋国 

机构地区：[1]西安建筑科技大学理学院,陕西西安710055 [2]中煤平朔高新技术研发中心,山西朔州035000

出　　处：《应用化工》2008年第7期757-759,共3页Applied Chemical Industry

基　　金：中煤集团和山西省朔州市政府企业自主创新科技资助项目

摘　　要：针对晋北粉煤灰酸法提铝工艺,探索从粉煤灰中酸法预提镓的方法,研究了焙烧温度、盐酸浓度对镓提取率的影响。结果表明,粉煤灰提镓的适宜条件为:灰样不经焙烧,盐酸浓度为6 mol/L,60℃浸泡8 h,镓浸出率最大,可达44%以上。该实验为从粉煤灰中获得纯金属镓作了初步溶出富集研究。According to recovering aluminum using acid method from fly ash in Shanxi province, this thesis investigates acid pre-extraction process for recovering gallium from fly ash and coal gangue. Effect of calcination temperature, hydrochloric acid concentration on extraction of gallium are studied, the results show that the best concentration of hydrochloric acid is 6 mol/L, soaking for 8 h at 60 ℃ ,and the maximum extraction rate is over 44%. The experiment is a preliminary study on the dissolution and enrichment extracting metal gallium from fly ash.

关 键 词：镓 粉煤灰 提取 盐酸 

分 类 号：TD98[矿业工程—选矿]