PROCESS FOR CONVERSION OF ORGANIC ACID SALTS TO ORGANIC ACIDS BY ELECTRODIALYSIS AND ELECTRODIALYSIS WITH BIPOLAR MEMBRANES

PROCESS FOR CONVERSION OF ORGANIC ACID SALTS TO ORGANIC ACIDS BY ELECTRODIALYSIS AND ELECTRODIALYSIS WITH BIPOLAR MEMBRANES

A process for converting carboxylic acid salts produced in bioprocesses into carboxylic acids, the process comprising (a) obtaining a carboxylate stream from a bioreactor, the carboxylate stream optionally comprising nutrient salt impurities, (b) feeding the carboxylate stream to an electrodialysis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RENKEMA, Eilertdina Henderika, LAMMERS, Hans, VAN LARE, Cornelis Elizabeth Johannus, DIRIX, Carolina Anna Maria Christina
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A process for converting carboxylic acid salts produced in bioprocesses into carboxylic acids, the process comprising (a) obtaining a carboxylate stream from a bioreactor, the carboxylate stream optionally comprising nutrient salt impurities, (b) feeding the carboxylate stream to an electrodialysis (ED) unit and separating the carboxylate stream into a concentrated carboxylate stream and a dilute carboxylate stream, the concentrated carboxylate stream optionally comprising nutrient salt impurities, (c) feeding the concentrated carboxylate stream to an acidic compartment of an electrodialysis with bipolar membranes (EDBM) unit, wherein at least a part of the dilute carboxylate stream is fed to a basic compartment of the EDBM unit, and (d) optionally purifying a product stream obtained from the acidic compartment of the EDBM unit.