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Electrochemical Crystallization Concept for Succinic Acid Reduces Waste Salt Production
Author(s) -
Kocks Christian,
Görtz Jonas,
Holtz Arne,
Gausmann Marcel,
Jupke Andreas
Publication year - 2020
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201900088
Subject(s) - succinic acid , downstream processing , chemistry , salt (chemistry) , electrochemistry , carboxylic acid , fermentation , downstream (manufacturing) , crystallization , organic chemistry , electrode , chromatography , operations management , economics
Bio‐based carboxylic acids are promising platform chemicals. State‐of‐the‐art fermentations produce salts of carboxylic acids at neutral pH. Downstream processing of these fermentation broths traditionally involves a pH shift producing waste salts. These waste salts reduce the sustainability and economics of bio‐cased carboxylic acid production. Waste salt production can be avoided by inducing the pH shift electrochemically. Experimental feasibility studies of an electrochemical downstream process and investigations of electrochemically induced nucleation and crystal growth are given. The presented electrochemical downstream concept enables in situ production of succinic acid and simultaneous pH management of pH neutral fermentations without the side production of waste salts.