Production of aromatic hydrocarbons

Details Production of aromatic hydrocarbons Production of aromatic hydrocarbons

1978-06-13

1979-10-02

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

With hydrocarbon effluent stream splitting for recycle to...

252437, 585316, 585321, 585322, 585413, 585418, 585407, 585420, 585508, C07C 1502, B01J 2308

Patent

active

041698657

ABSTRACT:
A process for the dimerization and cyclization of isobutene to form, as preferred product, paraxylene in which the whole of the product of isobutene dimerization (including unreacted feedstock) is contacted with a catalyst for the cyclization of the isobutene dimer. The process is operable in a single dimerization/cyclization stage or in separate dimerization and cyclization stages with no intermediate separation of products. Optionally, the isobutene feedstock is provided by dehydrogenation of isobutane, unreacted isobutane in the resulting feedstock being carried through the dimerization/cyclization and eventually recycled.

REFERENCES:
patent: 3644550 (1972-02-01), Beuther et al.
patent: 4036902 (1977-07-01), Gregory
patent: 4046833 (1977-09-01), Hardman
patent: 4056575 (1977-11-01), Gregory et al.
patent: 4056576 (1977-11-01), Gregory et al.
patent: 4079097 (1978-03-01), Antos

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