Method of separating diacetoxybutene

Details Method of separating diacetoxybutene Method of separating diacetoxybutene

1976-02-06

1977-11-08

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 14, 560244, C07C 6902, B01D 310

Patent

active

040574725

ABSTRACT:
A fractional distillation method of separating diacetoxybutene isomers from a reaction mixture produced from the reaction of butadiene, acetic acid and molecular oxygen comprises employing a series of at least two distillation towers, one of said towers being used for distillation of water and acetic acid under a pressure of 30 - 250 Torr and a tower bottom temperature of 190.degree. - 120.degree. C and the other being used for separation of high boiling point materials under a pressure of 2 - 100 Torr and a tower bottom temperature of 190.degree. - 120.degree. C, the temperature of all tower bottoms being from 190.degree. - 120.degree. C.

REFERENCES:
patent: 3188354 (1965-06-01), Roming
patent: 3329586 (1967-07-01), Pettingill
patent: 3513078 (1970-05-01), Biarnais et al.
patent: 3658659 (1972-04-01), Cottle
patent: 3671577 (1972-06-01), Ono et al.
patent: 3872163 (1975-03-01), Shimizu et al.

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