Extractive distillation to separate cyclohexylbenzene from pheno

Details Extractive distillation to separate cyclohexylbenzene from pheno Extractive distillation to separate cyclohexylbenzene from pheno

1978-10-06

1979-09-11

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

568754, B01D 340, C07C 3738

Patent

active

041674561

ABSTRACT:
Diaryl ether is used as an extractive distillation solvent to separate mixtures containing cyclohexylbenzene, phenol and cyclohexanone. A mixture of cyclohexylbenzene, cyclohexanone and phenol resulting from the acid catalyzed cleavage of cyclohexylbenzene hydroperoxide is subjected to an extractive distillation with a diaryl ether solvent to obtain removed cyclohexylbenzene as a bottoms fraction.

REFERENCES:
patent: 2575285 (1951-11-01), Carlson et al.
patent: 3630855 (1971-12-01), Turbin
patent: 4016049 (1977-04-01), Fozzard et al.
patent: 4019965 (1977-04-01), Fozzard
patent: 4021490 (1977-05-01), Hudson
patent: 4115204 (1978-09-01), Murtha et al.
patent: 4115205 (1978-09-01), Murtha
patent: 4115206 (1978-09-01), Murtha
patent: 4115207 (1978-09-01), Murtha

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