双液相萃取棉籽油制备脂肪酸甲酯  

Preparation of fatty acid methyl ester from cottonseed oil produced by two-phase solvent extraction

作　　者：王本庭[1] 钱俊峰[1] 刘森[1] 云志[1] 

机构地区：[1]南京工业大学化学化工学院,江苏南京210009

出　　处：《化工学报》2007年第10期2636-2640,共5页CIESC Journal

摘　　要：Cottonseed as raw material was processed by two-phase solvent extraction.Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol.The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated.It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3.Under this condition, the water consumption was halved.The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied.Through orthogonal analysis, the optimum conditions were obtained as follows: the molar ratio of methanol to oil 6∶1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min.The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7%.Cottonseed as raw material was processed by two-phase solvent extraction. Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol. The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated. It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3. Under this condition, the water consumption was halved. The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied. Through orthogonal analysis, the optimum conditions were obtained as follows： the molar ratio of methanol to oil 6 ： 1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min. The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7 %.

关 键 词：双液相萃取 酯交换反应 脂肪酸甲酯 生物柴油 

分 类 号：TQ203.2[化学工程—有机化工]