化工学报Issue(12)：4664-4668,5.DOI:10.3969/j.issn.0438-1157.2014.12.003
氯化锂、氯化钠在NMP中溶解度的测定与关联
Determination and correlation of solubilities of lithium chloride and sodium chloride in NMP
李柏春 1杜东雪 1张文林 1孟楷1
作者信息
- 1. 河北工业大学化工学院，天津 300130
- 折叠
摘要
Abstract
In order to recover the additive lithium chloride in the polyphenylene sulfide production, the disolution of lithium chloride and sodium chloride in solventN-methyl pyrrolidone (NMP) was studied. By using laser diffraction assistance method, solubility data of lithium chloride and sodium chloride in NMP were measured between 297.95 K and 364.75 K. Empirical formula,λh equation and improved NRTL equation were used to correlate the solubility data of lithium chloride in NMP. The results show that the solubility of lithium chloride increases with temperature while that of sodium chloride almost keeps unchanged. The improved NRTL equation can predict the solubility data well and the relative average error is 0.41%. Thus the K-NRTL equation is most suitable for description of solid-liquid equilibrium of lithium chloride in NMP at high temperature.关键词
激光法/氯化锂/回收/NMP/相平衡/改进的NRTL方程/参数估值Key words
laser diffraction assistance method/lithium chloride/recovery/NMP/phase equilibria/improved NRTL equation/parameter estimation分类
化学化工引用本文复制引用
李柏春,杜东雪,张文林,孟楷..氯化锂、氯化钠在NMP中溶解度的测定与关联[J].化工学报,2014,(12):4664-4668,5.
