Phenol preparation process and propylene recovery therefrom

Details Phenol preparation process and propylene recovery therefrom Phenol preparation process and propylene recovery therefrom

1989-09-05

1991-05-21

Lone, Werren B.

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

Organic compounds

Oxygen containing

568385, 568565, 568569, 568577, 568741, 568768, 568799, 568840, 585422, 585446, C07C 3708, C07C 4553

Patent

active

050177290

ABSTRACT:
Phenol is produced in a recycle manner by (a) reacting benzene with propylene to synthesize cumene, (b) oxidizing the cumene of step (a) into cumene hydroperoxide, (c) acid cleaving cumene hydroperoxide into phenol and acetone, (d) hydrogenating the acetone of step (c) into isopropanol, (e) dehydrating the isopropanol of step (d) into propylene, and (f) recycling the propylene of step (e) to step (a). It is also possible to take propylene from step (e). The acetone by-product produced upon preparation of phenol is converted into propylene which is useful by itself for any other uses or recycled to the phenol producing process.

REFERENCES:
patent: 4260845 (1981-04-01), Shioyama
patent: 4310712 (1982-01-01), Langley
patent: 4431849 (1984-02-01), Colvin
patent: 4876397 (1989-10-01), Knifton et al.
patent: 4906790 (1990-03-01), Ishiguro et al.
Gasior et al., Chemical Abstracts 38862z, vol. 101, No. 6 of Aug. 6, 1984.

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