| 王尔佩,KELVIN Windi,唐书泽，等.碱催化合成三羟甲基丙烷二脂肪酸一乙酸酯的研究[J].中国油脂,2014,39(9):.[WANG Erpei,KELVIN Windi,TANG Shuze,etc.Synthesis of trimethylolpropane fatty acid diester-monoacetate by alkali catalysis[J].China Oils and Fats,2014,39(9):.] |
| 碱催化合成三羟甲基丙烷二脂肪酸一乙酸酯的研究 |
| Synthesis of trimethylolpropane fatty acid diester-monoacetate by alkali catalysis |
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| DOI： |
| 中文关键词: 生物润滑油 酯交换 三羟甲基丙烷脂肪酸三酯 三乙酸甘油酯 |
| 英文关键词:biolubricant transesterification trimethylolpropane fatty acid triester glyceryl triacetate |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| Trimethylolpropane fatty acid triester(TFATE) was synthesized using corn oil deodorizer distillate 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). Trimethylolpropane potassium salt (TMP-K) was used as catalyst, and the effects of reaction time, reaction temperature, 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, reaction time 3 h, reaction temperature 190[KG-*8]℃, 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. |
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