Cumene production

Details Cumene production Cumene production

1976-04-19

1977-02-15

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260671P, C07C 362, C07C 354

Patent

active

040082903

ABSTRACT:
A process to reduce utility consumption in the catalytic alkylation of benzene with propylene to form cumene. Propylene and benzene are reacted in an alkylation reaction zone, the effluent of which is divided into two portions, the first being recirculated to the inlet of the reaction zone and the second being passed into a separation zone wherein cumene product, di- and triisopropylbenzene and excess benzene are separated. A portion of the excess benzene is recycled to the inlet of the alkylation reaction zone, and a second portion is admixed with di- and triisopropylbenzene and passed into a transalkylation zone, the effluent of which is introduced into the separation zone. Utility consumption is reduced compared to prior art processes, as a result of a reduction of the portion of excess benzene separated and recycled to the alkylation reaction zone.

REFERENCES:
patent: 2860173 (1958-11-01), Jones et al.
patent: 2864874 (1958-12-01), Enos
patent: 3183233 (1965-05-01), Bloch
patent: 3527823 (1970-09-01), Jones
Chem. Abs., 74 125855.

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