Selective production of para-xylene
AssigneeMobil Oil Corporation
InventorBenjamin Weinstein
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Abstract
Process for the selective production of paraxylene by methylation of toluene at a temperature between about 500.degree.C. and about 750.degree.C. and preferably between about 575.degree.C. and about 700.degree.C. in the presence of a catalyst comprising a crystalline aluminosilicate zeolite said zeolite having a silica to alumina mole ratio of at last about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.
Claims13
A process for the selective production of para-xylene which comprises reacting toluene with a methylating agent at a temperature between about 575.degree.C and about 750.degree.C in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12.
A process for the selective production of paraxylene which comprises reacting toluene with a methylating agent at a temperature between about 575.degree.C. and about 700.degree.C. in the presence of a catalyst comprising a crystalline aluminosilicate zeolite said zeolite having a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12.
Dependencies are inferred from the claim text.