Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1989-05-08
1991-11-26
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C07C 5142
Patent
active
050684191
ABSTRACT:
An organic acid is separated from a fermentation broth by using an adsorbent comprising a water-insoluble macroreticular or gel weakly basic anionic exchange resin possessing tertiary amine or pyridine functional groups or a strongly basic anionic exchange resin possessing quaternary amine functional groups. The resins are in sulfate form and have a cross-linked acrylic or styrene resin matrix. The organic acid is desorbed with water or dilute inorganic acid, e.g., sulfuric. The pH of the feed is maintained below the first ionization constant (pKa.sub.1) of the organic acid to obtain high selectivity.
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Kulprathipanja Santi
Oroskar Anil R.
Hall Jack H.
Killos Paul J.
McBride Thomas K.
Spears Jr. John F.
UOP
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