Separation of n-heptane from vinyl acetate by extractive distill

Details Separation of n-heptane from vinyl acetate by extractive distill Separation of n-heptane from vinyl acetate by extractive distill

1993-03-30

1994-01-11

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 64, 203 65, 203DIG10, 560248, 585862, 585857, 585864, 585865, 585866, B01D 340, C07C 708, C07C 6754

Patent

active

052777669

ABSTRACT:
Heptane cannot be removed from heptane-vinyl acetate mixtures by distillation because of the minimum boiling azeotrope. Heptane can be readily removed from vinyl acetate by extractive distillation. Typical effective agents are dimethylsulfoxide, phenol, diisobutyl ketone and hexyl acetate.

REFERENCES:
patent: 2171795 (1939-09-01), Kautter
patent: 3394057 (1968-07-01), Miller et al.
patent: 3691021 (1972-09-01), Feldman et al.
patent: 3736236 (1973-05-01), Di Fiore et al.
patent: 4897161 (1990-01-01), Berg et al.
patent: 4925533 (1990-05-01), Berg

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