Production of isopropylbenzene
AssigneeMobil Oil Corporation
InventorWarren W. Kaeding
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Abstract
A process is disclosed whereby benzene is brought into contact with propylene, in the presence of a specified type of crystalline zeolite catalyst, to produce isopropylbenzene. The preferred zeolite catalysts are those having a silica to alumina ratio of at least about 12 and a constraint index, as herein defined, within the approximate range of 1-12. The process may be carried out in the liquid or the vapor phase at temperatures of from about 100.degree. C. to about 300.degree. C. and pressures ranging from 10.sup.5 N/m.sup.2 to 6.times.10.sup.6 N/m.sup.2.
Claims10
A process for the propylation of benzene with selective production of isopropylbenzene, said process comprising contacting mixtures of benzene and propylene with a crystalline zeolite catalyst at a temperature of between about 100.degree. C. and the critical temperature, and a pressure of between about 10.sup.5 N/m.sup.2 and 6.times.10.sup.6 N/m.sup.2, said zeolite being characterized by a silica/alumina mole ratio of at least about 12 and a constraint index within the approximate range of 1 to 12, said zeolite being 2 sm-12.
Dependencies are inferred from the claim text.