Method for separating cyclohexene

Details Method for separating cyclohexene Method for separating cyclohexene

1996-10-18

1999-02-02

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 74, 203 81, 585808, 585860, 585865, B01D 340, C07C 708

Patent

active

058659587

ABSTRACT:
Cyclohexene is separated from a mixture of cyclohexene and at least one of cyclohexane and benzene by subjecting the mixture to extractive distillation in the presence of an extraction solvent the formula: ##STR1## wherein R.sup.1 and R.sup.2 each is a C.sub.1-10 alkyl group or hydrogen, and n is an integer of from 2-4, thereby preparing a fraction rich in cyclohexene.

REFERENCES:
patent: 2840511 (1958-06-01), Rylander et al.
patent: 4789729 (1988-12-01), Nagira et al.
patent: 4955468 (1990-09-01), Lee
patent: 5069756 (1991-12-01), Berg
patent: 5085740 (1992-02-01), Lee et al.
patent: 5334774 (1994-08-01), Kogure et al.
patent: 5399244 (1995-03-01), Gentry et al.
patent: 5405505 (1995-04-01), Berg
patent: 5494572 (1996-02-01), Horii et al.
Database WPI, Derwent Publications, AN 77-15211Y, JP 52 005 733, Jan. 17, 1977.

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