摘要
采用等温溶解平衡法测定了30℃时氯化锂-乙醇-水三元体系的平衡溶解度及饱和溶液的折光率和密度,并且绘制了30℃时氯化锂-乙醇-水三元体系的相图。用多元线性回归法对溶液的折光率、密度和氯化锂的溶解度与液相中乙醇含量之间的关系进行关联,并且计算了乙醇对氯化锂溶液的盐析率。该研究体系没有产生分层现象,固体为一水氯化锂。给出的氯化锂-乙醇-水三元体系的平衡数据,不仅为溶液化学提供了基础热力学数据,而且为氯化锂的分离纯化和萃取提供了依据。
Equilibrium solubility of lithium chloride-ethanol-water（LiCl-C2H5OH-H2O） ternary system and refractive index and density of saturated solution have been investigated by isothermal equilibrium method at 30 ℃.Ternary phase diagrams of LiCl-C2H5OH-H2O ternary system at 30 ℃ were plotted.Relations between saturated solubility of LiCl,refractive index and density of saturated solution,and alcohol content in liquid phase were evaluated by multiple linear regression analysis algorithm.Salting-out rate of LiCl solution against ethanol was calculated.No demixing phenomena were observed and a hydrated salt LiCl·H2O was found.A series of phase equilibrium data of LiCl-C2H5OH-H2O ternary system were given out,which not only provided basic thermodynamic data for solution chemistry,but also provided foundation for purification and extraction of LiCl.
出处
《无机盐工业》
CAS
北大核心
2010年第5期27-28,38,共3页
Inorganic Chemicals Industry
关键词
氯化锂
乙醇
三元体系
相平衡
溶解度
lithium chloride
ethanole
ternary system
phase equilibrium
solubility
