Process for obtaining colorless and stable isophorone

Details Process for obtaining colorless and stable isophorone Process for obtaining colorless and stable isophorone

1979-01-30

1981-02-03

Sever, Frank

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 37, 210664, 568376, B01D 334

Patent

active

042486734

ABSTRACT:
A process for obtaining colorless and stable isophorone is characterized by distilling a raw synthesis mixture to remove alkaline agents, acetone, and a major portion of the water which is present, thermally treating the distilled mixture with an acidic ion-exchanging resin, neutralizing the effluent following said thermal treatment with an excess of an alkaline agent, adding water in a volume sufficient to dissolve any salts which may have formed, then again, neutralizing the now alkaline mixture wherein the pH of the resultant mixture is between 6.5 and 7, washing the mixture in water by decantation, and distilling the mixture under reduced pressure.

REFERENCES:
patent: 3462348 (1969-08-01), Wellman et al.
patent: 3652407 (1972-03-01), Paleos

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