摘要
以酸化油为原料,自制离子液体为催化剂,采用甲酯化方法制备脂肪酸甲酯。通过考察甲醇与脂肪酸物质的量比、离子液体催化剂加入量、反应温度和反应时间对甲酯化反应的影响,最佳反应条件:甲醇与脂肪酸物质的量比9∶1,离子液体催化剂用量为甲醇与游离脂肪酸总质量的25%,反应温度65℃,反应时间2.0 h。通过测量原料酸化油与产物的含水量,证明离子液体催化剂具有良好的带水性,有利于甲酯化反应的进行。该方法不仅可降低生产成本,减少环境污染,也能避免油脂资源问题,具有较高经济效益和社会效益。
Methyl esters of fatty acids was synthesized via methyl esterification using acidification oil as the feedstock and self-made ionic liquid as the catalyst. Effects of methanol-to-fatty-acids molar ratio, dosage of catalyst, reaction temperature and reaction time were investigated, with optimum condition obtained as follows ： methanol to fatty acids molar ratio 9： 1, dosage of catalyst 25% of total mass of methanol and fatty-acids, reaction temperature 65 ℃, reaction time 2 h. Water content in acidification oil and product was determined, which proved the excellent water-carrying capability of the ionic liquids. The latter favors proceeding of esterification.
出处
《工业催化》
CAS
2012年第6期55-58,共4页
Industrial Catalysis
关键词
催化化学
酸化油
甲酯化
离子液体
带水性
catalytic chemistry
acidification oil
methyl esterification
ionic liquid
water-carrying capability
作者简介
作者简介：袁吴魏，1987年生，男，在读硕士研究生，主要从事采用离子液体催化剂进行餐饮废油合成生物柴油的工艺研究。
通讯联系人：姚志龙，博士，研究员。E-mml：yaozl@bipt．edu．cn
