Process for separating and recovering 3-hydroxypropionic acid
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Jun 30, 2010
filing date -
Jul 1, 2009
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Abandoned
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Abstract
The present invention relates to processes for separating and recovering 3-hydroxypropionic acid, comprising: (a) subjecting an aqueous solution comprising a salt of 3-hydroxypropionic acid to concentrating electrodialysis to concentrate the salt of 3-hydroxypropionic acid in the aqueous solution; and (b) subjecting the resulting concentrate to bipolar membrane electro-dialysis to convert the salt of 3-hydroxypropionic acid into the free acid of 3-hydroxypropionic acid.
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