C - Chemistry – Metallurgy – 11 – B
Patent
C - Chemistry, Metallurgy
11
B
C11B 3/10 (2006.01) C07C 51/42 (2006.01) C07C 51/47 (2006.01) C11B 13/00 (2006.01)
Patent
CA 2321759
Disclosed is a cost-effective method for purifying and acidifying carboxylic acids, including organic acids and amino acids. The method involves removing impurities by allowing the anionic form of the carboxylic acid to bind to an anion exchange column and washing the column. The carboxylic anion is displaced as carboxylic acid by washing the resin with a strong inorganic anion. This method is effective in removing organic carboxylic acids and amino acids from a variety of industrial sources, including fermentation broths, hydrolysates, and waste streams.
L'invention concerne un procédé économique de purification et d'acidification d'acides carboxyliques, y compris des acides organiques et des acides aminés. Le procédé consiste à éliminer des impuretés en favorisant la liaison de la forme anionique de l'acide carboxylique avec une colonne échangeuse d'anions puis en lavant la colonne. On transforme l'anion carboxylique en acide carboxylique en lavant la résine avec un anion inorganique fort. Ce procédé est efficace pour l'élimination d'acides carboxyliques organiques et d'acides aminés de plusieurs sources industrielles, y compris de bouillons de fermentation, d'hydrolysats et de flux de déchets.
Borden Ladner Gervais Llp
Michigan Biotechnology Institute
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