失水山梨醇单月桂酸酯的合成  

Synthesis of High Quality Sorbitan monolaurate

作　　者：杨晓东[1] 丁志平[1] 

机构地区：[1]南京化工职业技术学院,江苏南京210048

出　　处：《江苏化工》2006年第3期18-20,共3页Jiangsu Chemical Industry

摘　　要：以山梨醇和月桂酸为原料,采用新型催化剂一步法合成目标产物。探讨了催化剂配比、用量和反应温度对目标产物单酯含量、酸值(A.V.3～5mgKOH·g-1)、皂化值(S.V.150～170mgKOH·g-1)和羟值(OH.V.330～380mgKOH·g-1)的影响,得到了适宜的反应条件。产品色泽浅无需经脱色处理可直接应用于医药、食品、化妆品等行业。Sorbitan monolaurate (Span20) is a very famous nonionic surfactant which possesses many excellent properties,such as emulsifying, dispersing and being nontoxic,nonirritant and low-volatile. Span20 was synthesized by direct reaction of sorbitol with oleic acid using a new catalyst system which mainly consists of A and B,in an axid: base molar ratio of 0.8∶1to 1.6∶1,at a calalust concentration of 3 to 20%,by weight of sorbitol can have high quality than products of prior commercial bulk processes even without the use of activated carbon and product bleaching typically used previously. It is attractive for personal applications.

关 键 词：失水山梨醇单月桂酸酯 酯化 醚化 

分 类 号：TQ423.2+2[化学工程]