METHOD OF PREPARING alpha-SULFO FATTY ACID ALKYL ESTER ALKANOLAMINE SALT
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United States of America Patent
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Issued Date -
Jun 7, 2012
app pub date -
Apr 7, 2010
filing date -
Apr 10, 2009
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Abandoned
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Abstract
The invention provides a method for the preparation of α-sulfo fatty acid alkylester alkanolamine salt comprising: sulfonating a fatty acid alkyl ester to obtain a sulfonated product, reacting an alcohol and a hydrogen peroxide with the sulfonated product to obtain a reactive product, adding an aqueous alkanolamine solution to the resultant reactive product to obtain a neutralized product having a pH of 2 to 6.5; condensing the neutralized product to obtain an aqueous paste containing α-sulfo fatty acid alkylester alkanolamine salt.
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