CAJ | 학술논문

以离子液体[ hnmp]HSO4为催化剂，4A分子筛为脱水剂，无水乙醇为带水剂，月桂酸和无水乙醇为原料合成香料月桂酸乙酯，采用FT-IR和GC-MS等对产物结构进行表征。在单因素实验基础上，通过正交实验对月桂酸乙酯合成工艺进行优化，得到最佳工艺条件：月桂酸与无水乙醇物质的量比为0.04：0.60，离子液体用量1.50 g，反应温度85℃，反应时间10 h。此工艺条件下，月桂酸乙酯产率达92.38%。离子液体对于合成月桂酸乙酯具有良好的催化性能，重复使用4次，仍有较好的催化活性。
이리자액체[ hnmp]HSO4위최화제，4A분자사위탈수제，무수을순위대수제，월계산화무수을순위원료합성향료월계산을지，채용FT-IR화GC-MS등대산물결구진행표정。재단인소실험기출상，통과정교실험대월계산을지합성공예진행우화，득도최가공예조건：월계산여무수을순물질적량비위0.04：0.60，리자액체용량1.50 g，반응온도85℃，반응시간10 h。차공예조건하，월계산을지산솔체92.38%。리자액체대우합성월계산을지구유량호적최화성능，중복사용4차，잉유교호적최화활성。
Ethyl laurate was synthesized by using lauric acid and anhydrous ethanol as the raw material, ionic liquid[hnmp]HSO4 as the catalyst and 4A molecular sieve as the dehydrating agent. The structure of product was analyzed by means of FT-IR and GC-MS. On the basis of single-factor experiments,the orthogonal experiments was carried out to obtain the optimized reaction condition. The results showed that the yield of ethyl laurate could reach up to 92 . 38% under the optimal condition as follows:ionic liquid amount 1. 50 g,lauric acid/anhydrous ethanol molar ratio 0. 04:0. 60,reaction temperature 85 ℃ and reaction time 10 h.[ hnmp]HSO4 ionic liquid for synthesis of ethyl laurate had good catalytic activity even after being reused for 4 times.