油酸与亚油酸物系溶剂结晶分离过程  

Separation Process of Oleic Aicd and Linoleic Acid by Solvent Crystallization

作　　者：崔国刚[1] 贾绍义[1] 张成[1] 吴松海[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《石油化工高等学校学报》2007年第2期12-14,29,共4页Journal of Petrochemical Universities

基　　金：天津市科技发展计划项目(No.033180611)

摘　　要：以甲醇为溶剂，对油酸与亚油酸物系的溶剂结晶分离过程进行了研究。结果表明，结晶温度和溶剂配比对油酸与亚油酸的溶剂结晶过程有较大影响。随着结晶温度的降低，晶体中油酸的质量分数减小，滤液中亚油酸的质量分数提高；随着溶剂配比的降低．晶体中油酸和滤液中亚油酸的质量分数均提高。外加磁场对油酸与亚油酸物系的溶剂结晶过程有一定的影响．有利于油酸与亚油酸的溶剂结晶分离。定量计算表明，在磁场的作用下．晶体中油酸的质量分数提高1．73％～2．18%；滤液中亚油酸的质量分数提高1．68％～3．19％。The solvent crystallization separation process of oleic acid and linoleic acid was investigated by using methanol solvent. The results show that the crystallization temperature and the proportion solvent have big influence on the solvent crystallization separation process of oleic acid and linoleic acid. Decreasing crystallization temperature decreases the mass fraction of oleic acid in crystal and increases the mass fraction of linoleic acid in filtrate. Decreasing proportion solvent increases the mass fraction of oleic acid and linoleic acid. The magnetic field has influence on the separation process, it is favorable to the solvent crystallization separation process of oleic acid and linoleic acid. The quantitative results show that under the effect of magnetic field the mass fraction of oleic acid in crystal increases by 1.73%-2.48% and the mass fraction of linoleic acid in filtrate increases by 1.68%-3.19%.

关 键 词：脂肪酸 油酸 亚油酸 磁场 溶剂结晶 

分 类 号：TQ028.3[化学工程]