VERFAHREN ZUR HERSTELLUNG VON AETHERPOLYCARBONSAEUREN

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 alcoholate and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200 DEG C to 350 DEG C und...

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Hauptverfasser: TISCHBIREK,GUENTHER,.DR, KRAUSE,HORST-JUERGEN,.DR
Format: Patent
Sprache:ger
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Zusammenfassung: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 alcoholate and (2) optionally, heavy metal catalysts and inert diluents at temperatures of 200 DEG C to 350 DEG C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering the ether polycarboxylic acid.