Method of separating components of phenols mixture by distillati

Details Method of separating components of phenols mixture by distillati Method of separating components of phenols mixture by distillati

1992-08-20

1993-11-23

Manoharan, Virginia

Distillation: processes, separatory

With disparate physical separation

203 43, 203 96, 203 97, 203 98, 203 93, 203 94, 203 99, 203DIG19, 203DIG23, 568749, 568916, 568918, B01D 300, C07C 3772, C07C 3774, C07C 3907

Patent

active

052640850

ABSTRACT:
A method of continuously distilling off the components of a mixture containing phenols, water and methanol using a single distillation column, wherein methanol is recovered from the top of the column, water containing phenols is dragged as a side stream from a recovery section of the column, and phenols are recovered as a bottom product. The method permits efficient separation by the single distillation column of the three components with high purity and low utility energy.

REFERENCES:
patent: 4328377 (1982-05-01), Mori et al.
patent: 4744869 (1988-05-01), Saito et al.
patent: 4832796 (1989-05-01), Fulmer
Patent Abstracts of Japan, vol. 5, No. 106 (C-62)(778), Jul. 10, 1981, & JP-A-56 46 829, Apr. 28, 1981, Mitsuo Onobusa, et al., "Separation of Methylphenol".
Chemical Abstracts, vol. 101, No. 14, Oct. 1, 1984, & Abstract No. 112775s, Jun. 6, 1984, pp. 98, "Separation of Anisole".

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