Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1991-07-18
1992-06-02
Pal, Asok
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
585467, 585466, C07C 266
Patent
active
051188945
ABSTRACT:
Ethylbenzene is produced by the alkylation of benzene with ethylene in the presence of an alkylation catalyst which comprises an inorganic, non-layered, porous, crystalline phase aluminosilicate material whcih exhibits a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams at 50 torr and 25.degree. C. In its preferred catalytic form, the crystalline material has a uniform, hexagonal arrangement of pores with diameters of at least about 13 .ANG. and exhibiting, after calcination, an X-ray diffraction pattern with at least one d-spacing greater than about 18 A and a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 .ANG. which corresponds to at least one peak in the X-ray diffraction pattern. The process is typically carried out at a temperatue of 200.degree. to 1000.degree. F. but the catalyst provides sufficient activity for the reaction to be carried out at temperatures below 700.degree. F. Liquid phase operation is preferred, giving a lower yield of polyethylated products. The use of the selected catalyst also results in a reduction of the xylene impurity level.
REFERENCES:
patent: 3751504 (1973-08-01), Keown et al.
patent: 3755483 (1973-08-01), Burress
patent: 4016218 (1977-05-01), Haag et al.
patent: 4169111 (1979-09-01), Wight
patent: 4459426 (1984-07-01), Inwood et al.
patent: 4547605 (1985-10-01), Kresge et al.
patent: 4846956 (1989-07-01), Lok et al.
patent: 4879103 (1989-11-01), Vaughan
patent: 4962256 (1990-10-01), Le et al.
Everhart C.
Keen Malcolm D.
Mobil Oil Corporation
Pal Asok
Speciale Charles J.
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