Patent ID: 9193663
Filing Date: 2015-11-24
Classification: C07C

Abstract:
1. A method for producing a vinyl acetate composition, the method comprising: (a) contacting acetic acid, oxygen, and ethylene under conditions effective to form a crude vinyl acetate stream comprising vinyl acetate, acetic acid, residual oxygen, peroxides, and water; (b) contacting the crude vinyl acetate stream or a derivative thereof with at least one scavenger to form a treated crude vinyl acetate composition, wherein the at least one scavenger comprises ascorbic acid, wherein the contacted crude vinyl acetate composition comprises ascorbic acid present in an amount less than 1067 wppm, based on the total weight of the contacted crude vinyl acetate stream; and wherein the treated crude vinyl acetate composition comprises less than 8 wppm peroxides, based on the total weight of the treated crude vinyl acetate composition.