耐水酸性離子液體在酯化反應之應用研究

The Application of Water-tolerable Acidic Ionic Liquid on the Esterification Reaction

吳榮宗(Jung-Chung Wu) ； 黃銘郁(Ming-Yu Huang) ； 林建琛(Jann-Chen Lin) ； 張仁俊(Jen-Chun Chang)

《石油季刊》 47卷3期 (2011/09) Pp. 1-17

https://doi.org/10.30128/JP.201109.0001

摘要

本論文主要是探討利用耐水酸性離子液體為觸媒之醇與酸之酯化製程，其中酸性離子液體係利用有機含氮化合物與烷基磺酸內酯作用，生成白色兩性化合物固體(Zwitterion)，經純化乾燥後，再與含－SO3H之布倫斯特強酸作用，得到透明黏稠狀之耐水酸性離子液體，利用此類觸媒，可有效進行二元醇單脂肪酸酯、二乙二醇正丁醚乙酯以及脂肪酸甲酯之合成，反應後抽真空回收醋酸或甲醇，並去除水份，之後靜置使產物與離子液體分層，取出上層產物，下層之離子液體可重複使用，進行酯化反應。

關鍵字

酸性離子液體 ； 酯化反應 ； 醇酯 ； 酯醚 ； 生質柴油

並列摘要

The esterification of alcohol and acid using water-tolerable acidic ionic liquid (IL) will be discussed in this paper. The acidic IL could be obtained by the interaction of sulfonic Bronsted acid (-SO3H) with a zwitterion white solid compound which was prepared by the reaction of N-containing organic compound with alkyl sultone. The prepared acidic IL could be used effectively for the esterification reaction, e.g., the synthesis of glycol mono-fatty acid ester, diethyleneglycol mono-tert-butyl ether acetate, and fatty acid methyl ester. The exess HOAc and MeOH could be recovered and the H2O formed during the reaction was removed by vacuum distillation. The product of ester and unreacted compounds are based in the upper layer, and could be separated easily by decantation. The bottom layer of acidic IL could be reused for the esterification.

並列關鍵字

Acidic Ionic Liquid ； Esterification ； Alcohol Ester ； Ether Ester ； Bio-diesel