Study on the phase change of rich potassium-lithium electrolyte and the analysis of bath ratio

摘要：

　　Due to the depletion of bauxite ,the lithium and Potassium content in the bath keep rising and the composition of the bath tend to be complex to make the solid phase structure of the bath more complicated.Using X-Ray diffraction to determine the bath ratio under these situation will cause big deviation.Researches show in the complex bath lithium exist in the form of Na2LiAlF6, LiNa2AlF6 and the alkaline phase LiF;Potassium in the form K2NaA1F6.NaF reacting with the LiF or KF in the cryolite-like phase make the X-Ray diffraction testing result higher than actual.With the bath ratio rising ,detecting sub cryolite phase will be harder.Besides the higher the lithium content ,the narrower detecting limit when using X-Ray diffraction to test bath ratio, and bigger the result deviation.

关键词： high lithium potassium aluminium electrolyte phase structure X-Ray diffraction bath ratio

作者: HUANG Hai-bo LI Qiang LI Chang-lin

作者单位: Zhengzhou Research Institute of CHALCO, Zhengzhou 450041, China

会议类型: 国际会议

会议名称: 32th International Conference & Exhibition ICSOBA-2014(第32届国际铝土矿、氧化铝和铝工业技术学术年会)

会议地点: 郑州

会议语种:英文

页码: 436-441

在线出版日期: 2014-10-12（万方平台首次上网日期，不代表论文的发表时间）