To overcome the drawbacks of homogeneous catalysts in the synthesis of trimethylolpropane trioleate (TMPTO), ionic liquids with different acidity were electrostatically immobilized onto SBA-15 to obtain heterogenized catalysts. The catalytic performance of the as-prepared two catalysts (IL₁/SBA-15 and IL₂/SBA-15) was investigated at different temperatures (100–140 °C) and molar ratio of oleic acid (OA) to trimethylolpropane (TMP) (3:1 to 5:1) at fixed catalyst dosage of 3 wt% and reaction time of 20 h; where the catalyst IL₁/SBA-15 with higher acidity exhibits higher activity. The optimum temperature (at OA:TMP = 3:1) was obtained at 130 °C, where the total conversion was 86.1% and 70% with selectivity towards TMPTO of 95.6% and 92.96% for IL₁/SBA-15 and IL₂/SBA-15, respectively. Above this temperature, the selectivity began to decrease. The effect of OA: TMP molar ratio showed the increase of conversion (92.7% and 79.1%) with the increase of OA: TMP molar ratio up to 4.5. Further increase in OA concentration results in a damping of the catalytic efficiency of the two catalysts. Through six consecutive runs, the periodicity test refers to the relative stability of the employed catalysts with a slight decrease in activity. All results were interpreted and discussed in detail.

为了克服均相催化剂在三羟甲基丙烷三油酸酯（TMPTO）合成中的缺点，将不同酸度的离子液体静电固定在SBA-15上以获得多相催化剂。在不同温度 (100–140 °C) 和油酸 (OA) 与三羟甲基丙烷 (TMP) 的摩尔比下研究了所制备的两种催化剂 (IL ₁ /SBA-15 和 IL ₂ /SBA-15)的催化性能) (3:1 至 5:1) 催化剂用量为 3 wt%，反应时间为 20 h；其中具有较高酸度的催化剂 IL ₁ /SBA-15 表现出较高的活性。最佳温度（OA:TMP = 3:1）在 130 °C 下获得，其中总转化率为 86.1% 和 70%，对 TMPTO 的选择性为 95.6%，IL _{1 的}选择性为 92.96%/SBA-15 和 IL ₂ /SBA-15。高于此温度，选择性开始下降。OA:TMP摩尔比的影响表明，随着OA:TMP摩尔比增加到4.5，转化率增加（92.7%和79.1%）。OA 浓度的进一步增加导致两种催化剂催化效率的衰减。通过连续六次运行，周期性测试是指所用催化剂的相对稳定性，活性略有下降。对所有结果进行了详细解释和讨论。