CAJ | 학술논문

以甲醇钠催化乙醇和大豆油发生酯交换反应合成大豆油脂肪酸乙酯,并采用氯化胆碱和尿素制备的低共熔溶剂( DES)对产品进行精制。通过正交实验得到酯交换反应的优化工艺条件为：催化剂用量1.3%,醇油摩尔比8：1,反应温度65℃,反应时间3 h。在此条件下,大豆油转化率达到99.38%。通过正交实验得到DES精制大豆油脂肪酸乙酯的最优工艺条件为：DES用量(以与大豆油脂肪酸乙酯体积比表示)1：1,洗涤温度75℃,洗涤时间4 min。在此条件下,大豆油脂肪酸乙酯产品中甘油残留量为0.017%,pH为7.0,且无废水排放。
이갑순납최화을순화대두유발생지교환반응합성대두유지방산을지,병채용록화담감화뇨소제비적저공용용제( DES)대산품진행정제。통과정교실험득도지교환반응적우화공예조건위：최화제용량1.3%,순유마이비8：1,반응온도65℃,반응시간3 h。재차조건하,대두유전화솔체도99.38%。통과정교실험득도DES정제대두유지방산을지적최우공예조건위：DES용량(이여대두유지방산을지체적비표시)1：1,세조온도75℃,세조시간4 min。재차조건하,대두유지방산을지산품중감유잔류량위0.017%,pH위7.0,차무폐수배방。
With sodium methoxide as catalyst, soybean oil fatty acid ethyl ester was synthesized by trans-esterification of ethanol and soybean oil,then the soybean oil fatty acid ethyl ester was purified by deep eutectic solvent ( DES) prepared by choline chloride and urea. The results showed that the optimal syn-thesis conditions were obtained by orthogonal experiment as follows:catalyst dosage 1 . 3%, molar ratio of ethanol to oil 8:1, reaction temperature 65℃ and reaction time 3 h. Under these conditions,the conver-sion rate of soybean oil reached 99 . 38%. The purification conditions of soybean oil fatty acid ethyl ester by DES were optimized by orthogonal experiment as follows:volume ratio of DES to soybean oil fatty acid ethyl ester 1:1, washing temperature 75℃ and washing time 4 min. Under these conditions, the residue content of glycerol in the purified product was 0 . 017%, and the pH of the purified product was 7 . 0 , meanwhile, there was no wastewater emission in the purification process.