Continuous process for recovering acetone from a waste...

Details Continuous process for recovering acetone from a waste... Continuous process for recovering acetone from a waste...

2003-07-03

2008-08-26

Manoharan, Virginia (Department: 1797)

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

C203S034000, C203S036000, C203S078000, C203S079000, C203S080000, C203S099000, C203SDIG019, C568S383000, C568S411000

Reexamination Certificate

active

07416645

ABSTRACT:
The present invention provides a continuous process for recovering acetone from a waste stream from an acetone purification stage. The waste stream contains mesityl oxide and optionally acetone. The process for recovering acetone includes separating the waste stream in a separating device at least in one stream containing mesityl oxide and optionally a further stream containing acetone, then concentrating mesityl oxide in the mesityl oxide containing stream, and finally recycling the concentrated mesityl oxide stream to the separating device and bringing it into contact with a basic or acidic aqueous medium or with an acidic catalyst in the presence of water whereby mesityl oxide is at least partially hydrolyzed to acetone.

REFERENCES:
patent: 2351352 (1944-06-01), McAllister et al.
patent: 3896006 (1975-07-01), Cooke
patent: 4262150 (1981-04-01), Pujado
patent: 4298765 (1981-11-01), Cochran et al.
patent: 4339605 (1982-07-01), Ligorati et al.
patent: 4340447 (1982-07-01), Laverick et al.
patent: 4634796 (1987-01-01), Suciu et al.
patent: 4722769 (1988-02-01), Chan et al.
patent: 6489519 (2002-12-01), van Barneveld et al.
patent: 6657087 (2003-12-01), Weber et al.
patent: 2002/0032350 (2002-03-01), Gerlich et al.
patent: 2003/0168329 (2003-09-01), Fulmer et al.
patent: 1188737 (2002-03-01), None
patent: 1 108 327 (1968-04-01), None
patent: 1 108 584 (1968-04-01), None
patent: 1108327 (1968-04-01), None
patent: 54070210 (1979-06-01), None
patent: 94 03420 (1994-02-01), None

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