Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Wayne J. Brtko0
Brian A. Salisbury0
Gary A. Sawyer0
Ronnie M. Hanes0
Date of Patent
February 3, 2009
0Patent Application Number
115081090
Date Filed
August 22, 2006
0Patent Primary Examiner
Patent abstract
A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.
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