Process for eliminating the diethanolamine present in triethanolamine and preparation process for purified triethanolamine
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United States of America Patent
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Mar 8, 1994
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N/A
app pub date -
Oct 29, 1992
filing date -
Oct 29, 1991
priority date (Note) -
Expired
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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.
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