CAJ | 학술논문

研究以玉米油脱臭馏出物为原料制备三羟甲基丙烷脂肪酸三酯( TFATE ),通过TFATE与三乙酸甘油酯( GTA)酯交换制备可再生的生物润滑油基础油三羟甲基丙烷二脂肪酸一乙酸酯。使用三羟甲基丙烷钾( TMP-K)为催化剂,通过测定三羟甲基丙烷二脂肪酸一乙酸酯( TMP-DE-MA)在反应产物中的含量,探讨了反应时间、反应温度、反应物摩尔比、催化剂添加量对反应的影响。最佳合成条件为：真空度800 Pa,反应时间3 h,反应温度190℃, TFATE 与 GTA 摩尔比1∶1.25,催化剂TMP-K与GTA摩尔比0.075∶1。在最佳合成条件下,反应产物中TMP-DE-MA的含量为52.56%。经电喷雾离子化质谱(ESI-MS)分析,TFATE的平均相对分子质量为905.9, TMP-DE-MA的平均相对分子质量为690.8,三羟甲基丙烷一脂肪酸二乙酸酯( TMP-ME-DA)的平均相对分子质量为435.4。
연구이옥미유탈취류출물위원료제비삼간갑기병완지방산삼지( TFATE ),통과TFATE여삼을산감유지( GTA)지교환제비가재생적생물윤활유기출유삼간갑기병완이지방산일을산지。사용삼간갑기병완갑( TMP-K)위최화제,통과측정삼간갑기병완이지방산일을산지( TMP-DE-MA)재반응산물중적함량,탐토료반응시간、반응온도、반응물마이비、최화제첨가량대반응적영향。최가합성조건위：진공도800 Pa,반응시간3 h,반응온도190℃, TFATE 여 GTA 마이비1∶1.25,최화제TMP-K여GTA마이비0.075∶1。재최가합성조건하,반응산물중TMP-DE-MA적함량위52.56%。경전분무리자화질보(ESI-MS)분석,TFATE적평균상대분자질량위905.9, TMP-DE-MA적평균상대분자질량위690.8,삼간갑기병완일지방산이을산지( TMP-ME-DA)적평균상대분자질량위435.4。
Trimethylolpropane fatty acid triester( TFATE) was synthesized using corn oil deodorizer distill-ate as raw material, then TFATE was transesterified with glyceryl triacetate ( GTA) to produce renewable biolubricant base oil trimethylolpropane fatty acid diester-monoacetate ( TMP-DE-MA) . Trimethylol-propane potassium salt ( TMP-K) was used as catalyst, and the effects of reaction time, reaction tem-perature, molar ratio of reactants and catalyst dosage on the content of TMP-DE-MA were discussed. The results showed that the optimal synthesis conditions were obtained as follows:vacuum 800 Pa, reac-tion time 3 h, reaction temperature 190℃, molar ratio of TFATE to GTA 1∶1. 25, and molar ratio of TMP-K to GTA 0. 075∶1. Under the optimal conditions, the content of TMP-DE-MA in the product was 52. 56%. The average relative molecular weights of TFATE, TMP-DE-MA and trimethylolpropane fatty acid monoester-diacetate ( TMP-ME-DA) analysed by electrospray ionization mass spectrometry (ESI-MS) were 905. 9, 690. 8 and 435. 4, respectively.