Patent ID: 7700803
Filing Date: 2010-04-20
Classification: B01J,C07C

Abstract:
1. A process for preparing carboxylic acid salts, which comprises reacting alcohols of the group consisting of ethylene glycol oligomers and polymeric ethylene glycols and mixtures thereof with an alkali metal hydroxide, alkaline earth metal hydroxide or a mixture thereof in water in the presence of a copper catalyst which comprises from 99.9 to 10% by weight of copper and from 0.01 to 90% by weight of iron and from 0 to 50% by weight of one or more other metals, prepared by precipitation of copper salt solutions or by coprecipitation of copper and iron salt solutions optionally containing salts of other metals using a base, and reduction by hydrogen, at temperatures of from 120 to 280° C. and a pressure between the vapor pressure of the water and 75 bar, and said catalyst may optionally be doped after coprecipitation.