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选择多种催化剂用于催化癸二酸和2-乙基己醇合成癸二酸二异辛酯,研究了固体超强酸SO42-/TiO2-Al2O3的催化性能,并考察了影响反应的因素,结果表明适宜的反应条件为:醇酸物质的量比为3:1;催化剂用量为1.0g/mol癸二酸;带水剂甲苯为10mL;反应时间为 4.5h,酯化率达98.5%。
A variety of catalysts were selected to catalyze the synthesis of diisodecyl sebacate with sebacic acid and 2-ethylhexanol. The catalytic performance of the solid superacid SO42- / TiO2-Al2O3 was investigated. The factors affecting the reaction were also investigated. The results The results showed that the suitable reaction conditions were as follows: the molar ratio of alkyd material was 3: 1; the amount of catalyst was 1.0g / mol sebacic acid; the amount of toluene with toluene was 10mL; the reaction time was 4.5h and the esterification rate was 98.5%.