Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1981-09-25
1983-02-01
Helfin, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568 27, 568 28, 568 38, 568324, 568576, 568939, 568949, 568751, 564183, 564272, 564424, 562494, 560103, 260453A, 260454, 260465B, 568438, 570190, 570211, C07C 3786, C07C 1738, C07C 4585, C07C 8526
Patent
active
043717217
ABSTRACT:
A process for selective cracking of 1,4-disubstituted benzene compounds having at least one polar substituent. Mixtures containing isomers of such a compound are brought into contact with a specified type of shape selective crystalline zeolite catalyst under conditions of temperature and pressure conducive to reaction of said benzene compound, thereby selectively reacting the 1,4-disubstituted isomer in preference to the 1,2- and 1,3-disubstituted isomers of said polar benzene compound. The shape selective zeolite catalysts employed herein are crystalline zeolites characterized by a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12.
REFERENCES:
patent: 3856873 (1974-12-01), Burress
patent: 4163028 (1979-07-01), Tabak et al.
patent: 4181811 (1980-01-01), Young
patent: 4197413 (1980-04-01), Kaeding et al.
patent: 4205189 (1980-05-01), Young et al.
patent: 4230894 (1980-10-01), Young
Allen George W.
Cier Ronald J.
Helfin Bernard
Huggett Charles A.
Mobil Oil Corporation
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