Preparation of cumene through alkylation of an aromatic compound

Details Preparation of cumene through alkylation of an aromatic compound Preparation of cumene through alkylation of an aromatic compound

1989-11-27

1991-05-14

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568362, 568385, 568754, 568768, 568862, 585446, C07C 3707, C07C 3904

Patent

active

050157868

ABSTRACT:
In a first form, a process is provided for preparing phenol by converting acetone by-produced by the cumene process into isopropanol, and alkylating benzene with the isopropanol and optional propylene, thereby forming phenol without acetone by-product. And cumene is prepared by alkylating benzene in the presence of a zeolite catalyst using isopropanol or a mixture of isopropanol and propylene as an alkylating agent. Further provided is the continuous alkylation of benzene with isopropanol wherein a reaction mixture is divided into first and second portions, with the first portion being recycled to the reactor and the second portion being taken out as a reaction product.

REFERENCES:
patent: 4238417 (1980-12-01), Austin et al.
patent: 4267380 (1981-05-01), Austin et al.
patent: 4268454 (1981-05-01), Pez et al.
patent: 4567304 (1986-01-01), Fulmer
patent: 4783559 (1988-11-01), Matsushita et al.
patent: 4877909 (1989-10-01), Mizusaki et al.

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