以马来酸酐、环己醇为原料,固体超强酸SO4^2-/SnO2-CeO2为催化剂,一步完成酯化异构化合成富马酸单环己酯。采用FTIR和GC—MS对产品进行了表征分析。通过正交实验设计得出反应的适宜工艺条件:反血温度100℃,反应时间5h,催化剂用量2.5g(以0.1mol马来酸酐为基数),醇酸摩尔比为1.5:1,在此条件下富马酸单环己酯产率为57.65%。
Using maleic anhydride and cyclohexanol as raw material and solid super acid SO4^2-/SnO2-CeO2 as esterification and isomerization catalyst, mono-cyclohexyl fumarate was synthesized by one step process. The products were confirmed by GC-MS and FTIR spectrum. The optimum conditions obtained by orthogonal experiments are as follows: reaction temperature 100 ℃ , reaction time 5 h, catalysts dosage 2.5 g, n (cyclohexanol) : m ( maieic anhydride) = 1.5 : 1, the yield of mono-cyclohexyl fumarate was 57.65 %.