Separation of phenol-cyclohexanone azeotrope by extractive disti

Details Separation of phenol-cyclohexanone azeotrope by extractive disti Separation of phenol-cyclohexanone azeotrope by extractive disti

1976-07-28

1977-04-05

Bernstein, Hiram H.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

260586P, 260621A, 260621C, B01D 340, C07C 3722

Patent

active

040160491

ABSTRACT:
Phenol-cyclohexanone azeotrope, for example, resulting from the cleavage product of 1-phenylcyclohexylhydroperoxide resulting from the oxidation of cyclohexylbenzene, from which cyclohexylbenzene may have been separated, is subjected to an extractive distillation with a selective solvent essentially containing a diester of adipic acid, e.g. a dialkyl and/or a dicycloalkyl ester of adipic acid. Specifically disclosed is a separation of a cyclohexanone-phenol mixture employing di(2-ethylhexyladipate). The diesters up to and including diC.sub.14 are referenced.

REFERENCES:
patent: 2265939 (1941-12-01), Field
patent: 2360859 (1944-10-01), Evans
patent: 2762760 (1956-09-01), Walker
patent: 2865819 (1958-12-01), Hagemeyer
patent: 2986583 (1961-05-01), Robbers
patent: 3169101 (1965-02-01), Berthoux
patent: 3492362 (1970-01-01), Netteshein
patent: 3630855 (1971-12-01), Turbin

Affiliated with

Also associated with

Rating

Separation of phenol-cyclohexanone azeotrope by extractive disti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation of phenol-cyclohexanone azeotrope by extractive disti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of phenol-cyclohexanone azeotrope by extractive disti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2264784