Patent ID: 6165426
Filing Date: 2000-12-26
Classification: C07B,C07C,C22B,Y02P

Abstract:
In a method of making a liquid product using an antimony catalyst wherein up to 10 wt % of said antimony catalyst dissolves in said liquid product, an improved method of separating said antimony catalyst from said liquid product comprising(A) contacting said liquid product with a hydrated compound selected from the group consisting of hydrates of sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, ammonium carbonate, ammonium bicarbonate, and mixtures thereof, whereby said hydrated compound does not react with said liquid product but does react with said antimony catalyst to form an antimony compound that is insoluble in said liquid product; and(B) separating said insoluble antimony compound from said liquid product.