초록 ▼

Although alkenes commonly are used to alkylate alkanes using various solid acid catalysts, the process is severely hampered by short catalyst lifetimes attending substantial alkene oligomerization. This problem can be avoided by using an alkene-alkyl chloride mixture as the alkylating agent. Thus, a

Although alkenes commonly are used to alkylate alkanes using various solid acid catalysts, the process is severely hampered by short catalyst lifetimes attending substantial alkene oligomerization. This problem can be avoided by using an alkene-alkyl chloride mixture as the alkylating agent. Thus, alkylation of isobutane by a butyl chloride/butene mixture at a molar ratio of 1:3 in the presence of an AlCl.sub.3 -type Friedel-Crafts catalyst at 30.degree. C. maintains at least an 80% conversion of (alkene and alkyl chloride) for almost twice as long as is the case for a 1:19 molar ratio of butyl chloride/butene.

대표청구항 ▼

[ What is claimed is:] [1.] A process for the preparation of alkylate comprising reacting in the liquid phase in the presence of a solid acid catalyst under reaction conditions a mixture of an alkene containing from 2 up to about 6 carbon atoms, said mixture being substantially free of polymeric alk

[ What is claimed is:] [1.] A process for the preparation of alkylate comprising reacting in the liquid phase in the presence of a solid acid catalyst under reaction conditions a mixture of an alkene containing from 2 up to about 6 carbon atoms, said mixture being substantially free of polymeric alkenes, and an alkyl halide containing from 3 up to about 5 carbon atoms with an alkane having from 4 up to about 6 carbon atoms to form as the product an alkylate containing alkanes having a greater number of carbon atoms than either reactant, where said mixture has a molar ratio of alkyl halide to alkene from about 1:5 up to about 9:1. [16.] A process for the preparation of alkylate comprising reacting in the liquid phase in the presence of a solid acid catalyst under reaction conditions a mixture of an alkene selected from the group consisting of propylene, butenes, pentenes, and hexenes, said mixture being substantially free of polymeric alkenes, and an alkyl halide containing from 3 up to about 5 carbon atoms with an alkane having from 4 up to about 6 carbon atoms to form as the product an alkylate containing alkanes having a greater number of carbon atoms than either reactant, where said mixture has a molar ratio of alkyl halide to alkene from about 1:5 up to about 9:1.