Distillation process for recovery of high purity phenol

Details Distillation process for recovery of high purity phenol Distillation process for recovery of high purity phenol

1990-09-27

1991-11-12

Bascomb,, Jr.,

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 35, 203 37, 203 38, 203 83, 203 88, 203DIG19, 568749, 568754, B01D 332, C07C 3776

Patent

active

050645072

ABSTRACT:
High purity phenol is obtained from cleavage of cumene hydroperoxide by treating the crude phenol product stream in a first treatment zone with an amine, a coarse distillation to obtain an overhead stream comprising phenol, alpha-methyl styrene, cumene, and impurities, and steam distillation of the overhead stream in combination with addition of an amine to the steam distillation column for a second amine treatment step.

REFERENCES:
patent: 3140318 (1964-07-01), Sodomann et al.
patent: 3322651 (1967-05-01), Nielsen
patent: 3692845 (1972-09-01), Cheema et al.
patent: 4298765 (1981-11-01), Cochran et al.
patent: 4532012 (1985-07-01), Khonsari et al.
patent: 4634796 (1987-01-01), Suciu et al.
patent: 4851086 (1989-07-01), Khonsam et al.

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