Separation of benzene from close boiling hydrocarbons by extract

Details Separation of benzene from close boiling hydrocarbons by extract Separation of benzene from close boiling hydrocarbons by extract

1994-01-14

1995-10-17

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 58, 203 60, 203 62, 203 63, 203 65, 585803, 585804, 585808, 585857, 585860, 585862, 585864, 585865, 585866, B01D 340, C07C 708

Patent

active

054587417

ABSTRACT:
Benzene is difficult to separate from cyclohexane or cyclohexene by conventional distillation or rectification because of the close proximity of their boiling points. Benzene can be readily separated from cyclohexane or cyclohexene by using extractive distillation. Effective agents are: for benzene from cyclohexane, methyl acetoacetate; for benzene from cyclohexene, ethyl acetoacetate.

REFERENCES:
patent: 2834822 (1958-05-01), Worthington et al.
patent: 2842484 (1958-07-01), Fleck
patent: 3227632 (1966-01-01), Schmalenbach et al.
patent: 3884769 (1975-05-01), Mikitenko et al.
patent: 4053369 (1977-10-01), Cines
patent: 4514262 (1985-04-01), Berg
patent: 5399244 (1995-03-01), Gentry et al.

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