Vacuum separation of mixtures with similar boiling points

Details Vacuum separation of mixtures with similar boiling points Vacuum separation of mixtures with similar boiling points

1975-04-02

1977-11-01

Yudkoff, Norman

Distillation: processes, separatory

And recovering heat by indirect heat exchange

Utilizing recovered heat for heating the distillation zone

203 91, B01D 310

Patent

active

040564444

ABSTRACT:
This invention relates to the use of a heat pump in combination with a column having a low pressure loss for separating mixtures with similar boiling points in a vacuum of 10 Torr up to normal pressure. By using this arrangement,it is possible to separate isomers in particular, saving heat in relation to normal distillation.

REFERENCES:
patent: 2619453 (1952-11-01), Andersen
patent: 2645104 (1953-07-01), Kniel
patent: 3151046 (1964-09-01), Larson
patent: 3177129 (1965-04-01), Huckins, Jr.
patent: 3230155 (1966-01-01), Schurch
patent: 3414484 (1968-12-01), Carson et al.
patent: 3788954 (1974-01-01), Cantrell

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