Recovery of cumene from a mixture thereof with phenol and water

Details Recovery of cumene from a mixture thereof with phenol and water Recovery of cumene from a mixture thereof with phenol and water

1981-08-03

1983-01-25

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 77, 568754, 585804, B01D 314, C07C 3774, C07C 704

Patent

active

043702058

ABSTRACT:
A process is disclosed for the recovery of a phenol-free cumene fraction from a mixture thereof with phenol and water. Said mixture is introduced into a first fractionation column at conditions to separate a bottom fraction comprising a major portion of said phenol and an overhead fraction comprising said cumene and water and a residual portion of said phenol. The overhead fraction is condensed to form an aqueous phase containing a minor portion of the residual phenol and a water-saturated organic phase comprising cumene and the balance of said residual phenol. The water-saturated organic phase is then further treated in a second fractionation column whereby cumene is recovered as an overhead fraction substantially free of phenol.

REFERENCES:
patent: 2757209 (1956-07-01), Joris
patent: 3151047 (1964-09-01), Moon et al.
patent: 3365375 (1968-01-01), Nixon
patent: 3405038 (1968-10-01), Kohmoto
patent: 3441618 (1969-04-01), Flickinger
patent: 4166772 (1979-09-01), Murtha
patent: 4262150 (1981-04-01), Pujado
patent: 4262151 (1981-04-01), Pujado

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