Propylene oxide purification and recovery

Details Propylene oxide purification and recovery Propylene oxide purification and recovery

2006-09-12

2006-09-12

Dentz, Bernard (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S533000, C203S096000

Reexamination Certificate

active

07105687

ABSTRACT:
In accordance with the invention, propylene oxide is formed by reaction of propylene and hydrogen peroxide or by reaction of propylene, oxygen and hydrogen in methanol solvent, methanol and methyl formate are separated from propylene oxide by extractive distillation wherein the aqueous bottoms from methanol recovery distillation is used as extractive distillation solvent after first having been neutralized.

REFERENCES:
patent: 3578568 (1971-05-01), Washall
patent: 4824976 (1989-04-01), Clerici et al.
patent: 4833260 (1989-05-01), Neri et al.
patent: 5006206 (1991-04-01), Shih et al.
patent: 5129996 (1992-07-01), Shih
patent: 5591825 (1997-01-01), McKnight et al.
patent: 5612122 (1997-03-01), Tsukamoto et al.
patent: 5646314 (1997-07-01), Crocco et al.
patent: 5849938 (1998-12-01), Rueter et al.
patent: 6024840 (2000-02-01), Rueter
patent: 6500311 (2002-12-01), Sawyer

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