Process for the production of tertiary butylethylbenzene

Details Process for the production of tertiary butylethylbenzene Process for the production of tertiary butylethylbenzene

1994-07-20

1995-07-18

Pal, Asok

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585315, 585316, 585323, 585446, 585449, C07C 266

Patent

active

054343259

ABSTRACT:
The present invention provides an alkylation process which is highly selective towards the production of para-tertiarybutylethylbenzene in high yield and in high para isomer content, while minimizing the development of unwanted by-products and impurities during the alkylation reaction. In accordance with the process, a feed stream mixture comprising the olefin alkylating agent and a molar excess of an aromatic hydrocarbon substrate is introduced into the inlet of a reactor zone and through a bed of active zeolite alkylation catalyst under alkylation conditions such that substantially all of the olefin reacts with the aromatic substrate to produce a mixture comprising the alkylated product and unreacted aromatic compound. This mixture is continuously withdrawn from the reactor zone as reactor effluent, after which the effluent is split into a product stream and recycle stream. The recycle stream is continuously recirculated back into the inlet of said reactor zone, preferably after being first combined with fresh feed stream mixture, in an amount such that the quantity of said aromatic compound and said olefin present in said reaction zone prior to contact with said catalyst is maintained at a preferred mole ratio greater than 10 to 1.

REFERENCES:
patent: 2360358 (1944-10-01), Mattox
patent: 2904607 (1959-09-01), Mattox et al.
patent: 3251897 (1966-05-01), Wise
patent: 3631120 (1971-12-01), Eberly, Jr. et al.
patent: 3641177 (1972-02-01), Eberly, Jr. et al.
patent: 3755483 (1973-08-01), Burress
patent: 3766290 (1973-10-01), Carlson
patent: 3772398 (1973-11-01), Carr et al.
patent: 3776971 (1973-12-01), Carr et al.
patent: 4008290 (1977-02-01), Ward
patent: 4169111 (1979-09-01), Wight
patent: 4795550 (1989-01-01), Sachtler et al.
patent: 4849569 (1989-07-01), Smith, Jr.
patent: 4922053 (1990-05-01), Waguespack et al.
patent: 5012021 (1991-04-01), Vora et al.
patent: 5073653 (1991-12-01), Butler
patent: 5105041 (1992-04-01), Ferk et al.
patent: 5215725 (1993-06-01), Sy
patent: 5243115 (1993-09-01), Smith et al.

Affiliated with

Also associated with

Rating

Process for the production of tertiary butylethylbenzene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of tertiary butylethylbenzene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of tertiary butylethylbenzene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2419571