铝灰在冰晶石熔盐体系中的溶解性能研究  

Study on solubility properties of aluminum ash in cryolite molten salt system

作　　者：刘庆生[1] 王健鲁 

机构地区：[1]江西理工大学冶金与化学工程学院,江西赣州341000

出　　处：《轻金属》2014年第10期33-35,共3页Light Metals

基　　金：江西省教育厅产学研合作项目(GJJ10152);国家自然科学基金资助项目(51264011)

摘　　要：本文针对预处理后的铝灰是否能够作为原料加入铝电解槽中进行电解回用问题,对处理后铝灰的物理性质和溶解度分别进行了检测分析,探究了冰晶石熔盐体系对铝灰溶解度的影响。结果表明,预处理后铝灰多项物理特性都处于粉状和砂状氧化铝标准之间,属于中间状类型;铝灰的溶解度略高于铝电解用氧化铝,并且LiF添加量的增加、分子比及温度的升高均有利于铝灰在熔盐中的溶解,其溶解性完全能够满足冰晶石熔盐电解体系,能作为原料直接加入铝电解槽中进行电解生产金属铝。This article focus on aluminum ash can be added to aluminum reduction pots or not after pretreatment, the physical properties and solubility of aluminum ash were detected and analyzed, to explore the impact of cryolite molten salt system on the solubility of aluminum ash. The results showed that several physical characteristics were powdered and sandy alumina standards after pretreatment of aluminum ash, which belonged to the intermediate type; the solubility of aluminum ash was slightly higher than the alumina for aluminum reduction, increasing of amount of LiF, molecular ratio and temperature were benefit to the dissolution of aluminum ash in molten salt, the dissolution performance could fully satisfy in cryolite molten salt electrolysis system, could be added as raw materials directly to aluminum reduction pots for production of aluminum.

关 键 词：铝电解 铝灰 溶解度 物理特性 

分 类 号：TF821[冶金工程—有色金属冶金]