Process for the production of ether polycarboxylic acids

Details Process for the production of ether polycarboxylic acids Process for the production of ether polycarboxylic acids

1975-09-25

1976-06-22

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604482B, 2604488A, 260484P, C07C 5922

Patent

active

039651711

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 a silicon compound selected from the group of alkali metal alkoxy-silanolates and alkali metal alkoxy-polysiloxanolates and, optionally, inert diluents at temperatures of 200.degree. to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.

REFERENCES:
patent: 3431298 (1969-03-01), Saotome et al.
patent: 3870749 (1971-03-01), Danesh

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