Alkylation of organic aromatic compounds

Details Alkylation of organic aromatic compounds Alkylation of organic aromatic compounds

1993-05-17

1994-06-14

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585453, 203DIG6, C07C 266

Patent

active

053211812

ABSTRACT:
Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C.sub.2 to C.sub.10 olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80.degree. C. to 500.degree. C., using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms.

REFERENCES:
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patent: 4371714 (1982-02-01), Young
patent: 4423254 (1983-12-01), Olah
patent: 4469908 (1984-09-01), Burress
patent: 4504687 (1985-03-01), Jones
patent: 4570027 (1986-02-01), Boucher et al.
patent: 5243115 (1993-09-01), Smith et al.

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