Method for preparation of ether polycarboxylic acids

Details Method for preparation of ether polycarboxylic acids Method for preparation of ether polycarboxylic acids

1974-10-21

1976-05-11

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260484P, C07C 5922

Patent

active

039563812

ABSTRACT:
A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of (1) an alkali metal alkyl carbonate and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering the ether polycarboxylic acid.

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