Separation of cyclohexane from cyclohexene by azeotropic or extr

Details Separation of cyclohexane from cyclohexene by azeotropic or extr Separation of cyclohexane from cyclohexene by azeotropic or extr

1990-11-26

1991-12-03

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 58, 203 60, 203 62, 203 63, 203 64, 585860, 585864, 585865, 585866, B01D 336, B01D 340, C07C 700

Patent

active

050697560

ABSTRACT:
Cyclohexane cannot be readily separated from cyclohexene by conventional distillation or rectification because of the close proximity of their boiling points. Cyclohexane can be separated from cyclohexene by azeotropic or extractive distillation. Typical examples of effective agents are: for azeotropic; ethylene glycol methyl ether and n-butanol; for extractive; propylene glycol methyl ether and diacetone alcohol.

REFERENCES:
patent: 2302608 (1942-11-01), Field
patent: 2356240 (1944-08-01), Hamlin
patent: 2517839 (1950-08-01), Carnell
patent: 2909576 (1959-10-01), Fenske
patent: 3673081 (1972-06-01), Preusser et al.
patent: 4336110 (1982-06-01), Reimer
patent: 4948472 (1990-08-01), Lee et al.

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