CAJ | 학술논문

为了回收聚苯硫醚生产中的助剂氯化锂，对氯化锂、氯化钠在溶剂NMP（N-甲基吡咯烷酮）中的溶解性能进行了研究。利用激光衍射辅助法在297.95～364.75 K温度范围内对氯化锂、氯化钠在NMP中的溶解度进行了测定，并用经验方程、λh方程、改进的NRTL方程对氯化锂在NMP中的溶解度数据进行关联。结果证明，改进的NRTL方程的拟合结果最好，平均相对偏差仅为0.41%，可适用于较高温度下氯化锂-NMP体系溶解度的数据估计。
위료회수취분류미생산중적조제록화리，대록화리、록화납재용제NMP（N-갑기필각완동）중적용해성능진행료연구。이용격광연사보조법재297.95～364.75 K온도범위내대록화리、록화납재NMP중적용해도진행료측정，병용경험방정、λh방정、개진적NRTL방정대록화리재NMP중적용해도수거진행관련。결과증명，개진적NRTL방정적의합결과최호，평균상대편차부위0.41%，가괄용우교고온도하록화리-NMP체계용해도적수거고계。
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.