Process for eliminating the diethanolamine present in triethanolamine and preparation process for purified triethanolamine
AssigneeSociete Francaise Hoechst
InventorsGabrielle Claud, Alain Blanc
Life of this patent
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Abstract
Processes for eliminating the diethanolamine present in triethanolamine and the preparation of triethanolamine or compositions containing triethanolamine substantially free from diethanolamine in which the triethanolamine containing diethanolamine is treated with glyoxal in a molar ratio of glyoxal to diethanolamine greater than or equal to 1, then if desired the triethanolamine obtained or the composition containing it is isolated, and their use.
Claims5
Process for the elimination of the diethanolamine present in triethanolamine wherein the triethanolamine containing diethanolamine is treated with glyoxal in a molar ratio of glyoxal to diethanolamine greater than or equal to 1.
Dependencies are inferred from the claim text.