Vapor-phase isomerization process

Details Vapor-phase isomerization process Vapor-phase isomerization process

1977-03-09

1978-07-04

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260672R, 260672T, C07C 524

Patent

active

040988368

ABSTRACT:
An improved process is provided for vaporphase isomerization of monocyclic alkyl aromatic hydrocarbons in the presence of a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica/alumina mole ratio of at least 12 and a constraint index within the approximate range of 1 to 12, said zeolite containing cations which are predominantly hydrogen or hydrogen precursor and a metal of Group VIII of the Periodic Table of Elements, said Group VIII metal cations being present in a minimum amount of 2.0 percent by weight of said zeolite.

REFERENCES:
patent: 3088984 (1963-05-01), Oldenburg
patent: 3651162 (1972-03-01), Pohlmann et al.
patent: 3856872 (1974-12-01), Morrison
patent: 3919339 (1975-11-01), Ransley

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