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US 4,234,751 AGranted
Selective cracking of phenylalkanes
AssigneeMobil Oil Corporation
InventorLewis B. Young
Life of this patent
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Abstract
A process for the production of the internal isomers (3-phenyl, 4-phenyl and higher) from linear phenylalkane mixtures via selective cracking of the 2-phenylalkane isomer over crystalline zeolite catalysts having a silica to alumina ratio of at least about 12 and a constraint index, as herein defined, of about 1 to 12.
Claims14
A process for selective cracking of the 2-phenylalkane isomer contained in mixtures comprising said 2-phenylalkane isomer with other positional isomers of said phenylalkane;
- said process comprising contacting said isomeric mixture with a crystalline zeolite catalyst having a constraint index of about 1 to 12 and a silica to alumina ratio of at least about 12, said contacting being at a temperature of between about 150.degree. C. and about 500.degree. C. and at a pressure of between about 10.sup.4 N/m.sup.2 and about 10.sup.6 N/m.sup.2.
Dependencies are inferred from the claim text.