Process for the production of para-xylene

Details Process for the production of para-xylene Process for the production of para-xylene

1983-10-13

1985-01-01

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585467, C07C 268

Patent

active

044916787

ABSTRACT:
A process for the production of para-xylene is described, comprising methylating benzene or toluene in the presence of a catalyst composed mainly of (A) crystalline borosilicate and (B) a compound containing at least one element selected from the group consisting of Group IIa elements of the Periodic Table, Group IIIa elements of the Periodic Table, silicon, and phosphorus. The process of the invention enables to produce para-xylene in a high selectivity and a high yield. Since the life of the catalyst as used herein is very long, the process of the invention can be performed continuously for long periods of time while maintaining its high catalytic activity.

REFERENCES:
patent: 3965210 (1976-06-01), Chu
patent: 4086287 (1978-04-01), Kaeding et al.
patent: 4250345 (1981-02-01), Chu
patent: 4276437 (1981-06-01), Chu
patent: 4292457 (1981-09-01), Klotz
patent: 4386230 (1983-05-01), Hogan et al.

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