Method for preparing ether carboxylic acids from...

Details Method for preparing ether carboxylic acids from... Method for preparing ether carboxylic acids from...

C - Chemistry, Metallurgy

07

H

C07H 15/08 (2006.01) C07C 51/235 (2006.01) C07C 59/305 (2006.01) C08B 37/16 (2006.01) C11D 1/06 (2006.01)

Patent

CA 2065312

(57) Abstract In a method for preparing ether carboxylic acids by oxalkylation of carbohydrates and their derivatives followed by oxida- tion, the carbohydrates or their derivatives are either ethoxylated directly in the usual way or first alkoxylated in the usual way with a higher alkylene oxide and then ethoxylated, and the aqueous solution so obtained is oxidized without further treatment, with oxygen as the oxidizing agent, in a pH range in which the carbohydrates and their carboxylic acid derivatives are stable, in the presence of a catalyst containing at least a metal of the platinum group. The oxidation products so obtained, which are parti- cularly suitable as additives in washing agents, possess improved properties.

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