Lewis酸对杂多酸催化异丁烷/丁烯烷基化反应的作用Ⅰ.SbCl_5的修饰作用

Effect of Lewis Acid on Alkylation of Isobutane with Butene Ⅰ. Modification Effect of SbCl_5

考察了SbCl5对杂多酸 (HPA)催化i C4 H10 /C4 H8烷基化反应的修饰作用 ,用Hammett指示剂测定了SbCl5/HPA催化剂的酸强度 .结果表明 ,经SbCl5修饰的HPA的酸强度有所提高 ,SbCl5的加入量、反应温度及反应时间对烷基化油收率及产物分布均有不同的影响 .

The modification effect of SbCl 5 on isobutane alkylation with butene catalyzed by heteropoly acid (HPA) was investigated, the acid strength of SbCl 5/HPA catalyst was determined by the traditional method of Hammett indicators. The results revealed that SbCl 5 enhanced the acid strength of HPA, and that the alkylate yield and the product distribution were influenced under different conditions, such as the added amount of SbCl 5, the reaction temperature and the reaction time.