Selective alkylation of aromatic hydrocarbons

Details Selective alkylation of aromatic hydrocarbons Selective alkylation of aromatic hydrocarbons

2005-02-08

2008-03-25

Dang, Thuan Dinh (Department: 1797)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

Reexamination Certificate

active

07348465

ABSTRACT:
A method for increasing selectivity of alkylation to monoalkylation comprising: providing a feedstream consisting essentially of alkylating agent and a stoichiometric excess of benzene, the alkylating agent consisting essentially of a molar blend of propylene and one or more linear butene(s); and, contacting the feedstream with a catalytically effective amount of zeolite beta under alkylation reaction conditions which increase selectivity of the alkylation to monoalkylation compared to predicted selectivity to monoalkylation based on the concentration of the alkylating agent and on the molar blend of propylene and one or more linear butene(s).

REFERENCES:
patent: 3308069 (1967-03-01), Wadlinger et al.
patent: RE28341 (1975-02-01), Wadlinger et al.
patent: 4301316 (1981-11-01), Young
patent: 4329509 (1982-05-01), Haag et al.
patent: 4508837 (1985-04-01), Zones
patent: 4570027 (1986-02-01), Boucher et al.
patent: 4849569 (1989-07-01), Smith, Jr.
patent: 4876408 (1989-10-01), Ratcliffe et al.
patent: 4891458 (1990-01-01), Innes et al.
patent: 4950834 (1990-08-01), Arganbright et al.
patent: 4954325 (1990-09-01), Rubin et al.
patent: 4978807 (1990-12-01), Smith, Jr.
patent: 5081323 (1992-01-01), Innes et al.
patent: 5082990 (1992-01-01), Hsieh et al.
patent: 5120403 (1992-06-01), Smith, Jr.
patent: 5149894 (1992-09-01), Holtermann
patent: 5176883 (1993-01-01), Smith, Jr. et al.
patent: 5191136 (1993-03-01), Takahashi et al.
patent: 5204064 (1993-04-01), Smith, Jr.
patent: 5221441 (1993-06-01), Smith, Jr.
patent: 5258570 (1993-11-01), Skeels et al.
patent: 5262576 (1993-11-01), Smith, Jr.
patent: 5298667 (1994-03-01), Iwanaga et al.
patent: 5304684 (1994-04-01), Nishida et al.
patent: 5345006 (1994-09-01), Smith, Jr.
patent: 5723710 (1998-03-01), Gajda et al.
patent: 5756872 (1998-05-01), Smith, Jr. et al.
patent: 5894076 (1999-04-01), Hearn et al.
patent: 2002/0038067 (2002-03-01), Dandekar et al.
patent: 2002/0111522 (2002-08-01), Overbeek et al.
patent: 2002/0137977 (2002-09-01), Hendriksen
patent: 55046 (1982-06-01), None
patent: 64328 (1982-11-01), None
patent: 95304 (1983-11-01), None
patent: 159846 (1985-10-01), None
patent: 159847 (1985-10-01), None
patent: 164939 (1985-12-01), None
patent: 439 632 (1991-08-01), None
patent: 2024790 (1980-01-01), None
patent: WO 98/09928 (1998-03-01), None
Meyers, Robert A., Handbook of Petroleum Refining Processes, McGraw Hill (3rd Ed. 2004), entire book, particularly 2.3-2.11, 2.13-2.23, 2.25-2.26, 4.3-4.31.
International Search Report for PCT/US2006/004235 (TH2317 PCT) dated Jun. 13, 2006.

Affiliated with

Also associated with

Rating

Selective alkylation of aromatic hydrocarbons does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3960012