Method for the recovery of acetone

Details Method for the recovery of acetone Method for the recovery of acetone

1980-05-19

1982-06-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 35, 203 37, 203 71, 568411, B01D 334, C07C 4908

Patent

active

043361099

ABSTRACT:
Acetone having a markedly low content of aldehydes is recovered from an aqueous rectification residue brought about by rectification of crude acetone carried out after one crude acetone having been alkali-treated or while an alkali or an aqueous solution thereof being added to the crude acetone, by mixing the aqueous rectification residue with an alkali, neutralizing the mixture to a pH of 4 to 9, and then subjecting the resulting mixture to distillation to obtain acetone as a distillate.

REFERENCES:
patent: 1542538 (1925-06-01), Willkie
patent: 2555185 (1951-05-01), Cromeans
patent: 2614072 (1952-10-01), Carlson et al.
patent: 2971894 (1961-02-01), Kendall
patent: 3276973 (1966-10-01), Burmaster et al.
patent: 3330741 (1967-07-01), Theilig et al.
patent: 3531376 (1970-09-01), Minoda et al.
patent: 3672961 (1972-06-01), Nixon

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