逆流萃取分离硫辛酸-乙醇-水体系的模拟计算  

Countraflow extraction simulation calculation of lipoic acid and ethanol aqueous

作　　者：何天平[1] 李伟敏[1] 叶正亚[1] 顾正桂[2] 

机构地区：[1]江苏省安全生产科学研究院,江苏南京210042 [2]南京师范大学化学与环境科学学院,江苏南京210097

出　　处：《计算机与应用化学》2008年第12期1562-1564,共3页Computers and Applied Chemistry

摘　　要：分析对比逆流萃取分离的溶剂,研究甲苯对硫辛酸、乙醇和水混合溶液萃取分离的影响;以UNIQUAC方程为计算活度系数的模型,采用相分配系数和物料守恒方程模拟逆流萃取分离,绘制模拟计算程序框图,采用甲苯为萃取剂模拟计算液液萃取分离结果,表明在理论板数N=3时,硫辛酸的收率达92.5%,纯度可达99.1%以上,甲苯是分离的较好萃取剂,为进一步逆流萃取提供依据。Effect of solvents on countraflow extraction. Separation of lipoic acid and ethanol aqueous was studied. Separation were calcuhed with toluene by UNIQUAC equation. The separation result of extraction was obtained by simulation calculation and extraction experiment. The results show that recovery ratio of lipoic acid reach 92. 5%. The pure eomponent of lipoic acid reachs 99. 1%. The simulation results was provided for the pilot of eountraflow extraction.

关 键 词：硫辛酸 乙醇 甲苯 逆流萃取 模拟计算 

分 类 号：O641.3[理学—物理化学]