Method and apparatus for the recovery and purification of organic acids
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United States of America Patent
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Oct 28, 1997
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N/A
app pub date -
Jun 7, 1995
filing date -
Jun 7, 1995
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Abstract
The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present invention relates to the use of nanofiltration and chelating agents for removal of impurities from an organic acid-containing feed material to reduce the fouling of ion-selective membranes used in electrodialysis.
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