Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-con

Details Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-con Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-con

1977-07-21

1978-09-19

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 84, 260586R, 568757, B01D 340, C07C 3904, C07C 4524

Patent

active

041152042

ABSTRACT:
Phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures are extractively distilled to provide overhead of cyclohexanone and a kettle product substantially free of cyclohexanone by employing an N,N-disubstituted amide. When substantially no cyclohexylbenzene is present in the mixture to be extractively distilled, the kettle product will be essentially composed of the amide and phenol.

REFERENCES:
patent: 2762760 (1956-09-01), Walker
patent: 3515762 (1970-06-01), Koide et al.
patent: 3707575 (1972-12-01), Muller et al.
patent: 4016049 (1977-04-01), Fozzard et al.
patent: 4019965 (1977-04-01), Fozzard
patent: 4021490 (1977-05-01), Hudson

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