一种以碱性离子液体为催化剂制备单脂肪酸甘油脂的方法技术

本发明专利技术涉及一种以碱性离子液体为催化剂制备单脂肪酸甘油脂的方法，具体的制备方法如下：1）将油脂和甘油以摩尔比1∶3～8的比例加入到反应釜中；2）加入占油脂重量2～12%的碱性离子液体作为催化剂；3）充入氮气保护；4）在120～200℃的条件下搅拌0.5～3小时；5）冷却后，加入萃取剂，静止分层；6）取经过步骤5）后的上层相，减压蒸馏脱除萃取剂，即得到单脂肪酸甘油酯；7）取经过步骤5）后的下层相，用洗涤剂洗涤，去除下层相中多余的单脂肪酸甘油酯，洗涤剂后催化剂和甘油可循环使用。本发明专利技术与传统无机强碱催化的方法相比，具有以下优势：（1）催化效率更高；（2）产物的分离及后处理工艺非常简单；（3）碱性离子液体和甘油经简单处理后即可用于下次反应。

Method for preparing single fatty acid glyceride by using basic ionic liquid as catalyst

The invention relates to a method for preparation of catalyst and fatty acid glycerides by alkaline ionic liquid, preparation method is as follows: 1) the specific oil and glycerol in the molar ratio of 1 to 3 to 8 of the proportion of added into a reaction kettle; 2) added fat weight 2 ~ 12% as basic ionic liquids catalyst; 3) filled with nitrogen protection; 4) at 120 to 200 DEG C under stirring for 0.5 to 3 hours; 5) after cooling, adding the extractant, lamination; 6) after step 5) after the removal of the upper phase, vacuum distillation extraction agent to obtain fatty acid monoglyceride; 7) after step 5) after the lower phase, washing with detergent, remove the lower phase of fatty acid monoglyceride excess, catalyst and glycerin can be recycled after detergent. Compared with the traditional method of the present invention inorganic alkali catalysis, has the following advantages: (1) the catalytic efficiency is high; (2) the separation of products and postprocessing technology is very simple; (3) alkaline ionic liquid and glycerol after simple treatment can be used in the next reaction.

【技术实现步骤摘要】

【技术保护点】
一种以碱性离子液体为催化剂制备单脂肪酸甘油脂的方法，其特征在于具体的制备方法如下：1）将油脂和甘油以摩尔比1:3～8的比例加入到反应釜中；2）加入占油脂重量2～12%的碱性离子液体作为催化剂；3）充入氮气保护；4）在120～200℃的条件下搅拌0.5～3小时；5）冷却后，加入萃取剂，静止分层；6）取经过步骤5）后的上层相，减压蒸馏脱除萃取剂，即得到单脂肪酸甘油酯；7）取经过步骤5）后的下层相，用洗涤剂洗涤，去除下层相中多余的单脂肪酸甘油酯，洗涤剂后催化剂和甘油可循环使用。

【技术特征摘要】

【专利技术属性】
技术研发人员：罗辉，范维玉，李阳，赵品晖，南国枝，
申请(专利权)人：中国石油大学华东，
类型：发明
国别省市：