Method for producing acyloxy carboxylic acids and derivatives thereof
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United States of America Patent
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Jul 28, 2015
Grant Date -
Jun 13, 2013
app pub date -
Dec 7, 2012
filing date -
Dec 9, 2011
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Abstract
The disclosure relates to a process for forming an acyloxy carboxylic acid or a derivative of the acid. A hydroxy acid compound is reacted with a carboxylic acid in a reaction vessel and in the presence of a catalyst, such as in a reactive distillation column containing the catalyst. The reaction product formed in the reaction vessel includes an acyloxy carboxylic acid compound, which can be removed continuously from the vessel in a product stream. Another product stream containing unreacted (excess) carboxylic acid and/or reaction byproducts such as water can be separately removed continuously from the reaction vessel.
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