Alkylaromatics production

Details Alkylaromatics production Alkylaromatics production

2006-02-07

2006-02-07

Dang, Thuan D (Department: 1764)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

C585S467000

Reexamination Certificate

active

06995295

ABSTRACT:
A process is described for producing an alkylaromatic compound by reacting an alkylatable aromatic compound with a feed comprising an alkene and an alkane in a multistage reaction system comprising at least first and second series-connected alkylation reaction zones each containing an alkylation catalyst. At least the first alkylation reaction zone is operated under conditions of temperature and pressure effective to cause alkylation of the aromatic compound with the alkene in the presence of the alkylation catalyst, the temperature and pressure being such that the aromatic compound is partly in the vapor phase and partly in the liquid phase. An effluent comprising the alkylaromatic compound, unreacted alkylatable aromatic compound, any unreacted alkene and the alkane is withdrawn from the first alkylation reaction zone and at least part of the alkane is removed from the effluent to produce an alkane-depleted effluent. The alkane-depleted effluent is then supplied to the second alkylation reaction zone.

REFERENCES:
patent: 3293192 (1966-12-01), Maher et al.
patent: 3308069 (1967-03-01), Wadlinger et al.
patent: 3442795 (1969-05-01), Kerr et al.
patent: 3449070 (1969-06-01), McDaniel et al.
patent: 3494971 (1970-02-01), Fenske
patent: 3702886 (1972-11-01), Argauer et al.
patent: 3709979 (1973-01-01), Chu
patent: 3751504 (1973-08-01), Keown et al.
patent: 3751506 (1973-08-01), Burress
patent: 3755483 (1973-08-01), Burress
patent: 3766093 (1973-10-01), Chu
patent: 3832449 (1974-08-01), Rosinski et al.
patent: RE28341 (1975-02-01), Wadlinger et al.
patent: 3894104 (1975-07-01), Chang et al.
patent: 3923636 (1975-12-01), Mead et al.
patent: 3972983 (1976-08-01), Ciric
patent: 4016218 (1977-04-01), Haag et al.
patent: 4076842 (1978-02-01), Plank et al.
patent: 4107224 (1978-08-01), Dwyer
patent: RE29948 (1979-03-01), Dwyer et al.
patent: 4234231 (1980-11-01), Yan
patent: 4439409 (1984-03-01), Puppe et al.
patent: 4556477 (1985-12-01), Dwyer
patent: 4891458 (1990-01-01), Innes et al.
patent: 4992606 (1991-02-01), Kushnerick et al.
patent: 5073653 (1991-12-01), Butler
patent: 5077445 (1991-12-01), Le
patent: 5149894 (1992-09-01), Holtermann et al.
patent: 5236575 (1993-08-01), Bennett et al.
patent: 5250277 (1993-10-01), Kresge et al.
patent: 5258565 (1993-11-01), Kresge et al.
patent: 5292698 (1994-03-01), Chu et al.
patent: 5300722 (1994-04-01), Steigelmann et al.
patent: 5362697 (1994-11-01), Fung et al.
patent: 5371310 (1994-12-01), Bennett et al.
patent: 5430211 (1995-07-01), Pogue et al.
patent: 5453554 (1995-09-01), Cheng et al.
patent: 5476978 (1995-12-01), Smith, Jr. et al.
patent: 5491277 (1996-02-01), Stine et al.
patent: 5493065 (1996-02-01), Cheng et al.
patent: 5557024 (1996-09-01), Cheng et al.
patent: 5600048 (1997-02-01), Cheng et al.
patent: 5856607 (1999-01-01), Kim
patent: 5880320 (1999-03-01), Netzer
patent: 6077498 (2000-06-01), Diaz Cabañas et al.
patent: 6252126 (2001-06-01), Netzer
patent: 0293032 (1993-07-01), None
patent: 0 323 663 (1994-09-01), None
patent: 0629549 (1994-12-01), None
patent: 0432814 (1995-09-01), None
patent: 0 467 007 (1996-04-01), None
patent: 0 485 683 (2001-01-01), None
patent: 2 706 888 (1994-12-01), None
patent: 97/17290 (1997-05-01), None
patent: WO 98/07673 (1998-02-01), None
patent: WO 99/65601 (1999-12-01), None
patent: 01/21562 (2001-03-01), None
Abstract, CN 1 051 166, “Process for Making Ethyl Benzene by Reacting Dilute Ethylene with Benzene”, China Petrochem. Cor., XP 002275731, (May 8, 1991).
Abstract, FR 2 706 888, “Method for alkylating aromatics, especially for preparation of ethylbenzene or cumene”, (Dec. 30, 1994).

Affiliated with

Also associated with

Rating

Alkylaromatics production does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3647312