Title
Investigation of the electrosynthetic pathway of the aldol condensation of acetone
Author
Faculty/Department
Faculty of Sciences. Chemistry
Faculty of Applied Engineering Sciences
Publication type
article
Publication
Lausanne ,
Subject
Engineering sciences. Technology
Source (journal)
Chemical engineering journal. - Lausanne
Volume/pages
289(2016) , p. 554-561
ISSN
1385-8947
ISI
000371559900061
Carrier
E
Target language
Dutch (dut)
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The potential-controlled electrochemical aldol condensation of acetone to diacetone alcohol in a standard batch electrolysis set-up was studied in this work. It is confirmed that the reaction proceeds at the cathode and that, contrary to what is mentioned in earlier literature, water in the electrolyte has a disadvantageous effect on the reaction. Similar to the chemical reaction, the electrochemical reaction reaches a maximum yield when the equilibrium is reached. Separating the anode and cathode prevents cross-over and degradation of products, leading to a higher yield. Starting with pure acetone and support electrolyte, it was possible to obtain a diacetone alcohol concentration of 15 m% after two hours electrolysis in a divided set-up with a platinum electrode at -2.5 V. The concentration gradient throughout the electrolysis follows an exponential curve up to its equilibrium concentration.
E-info
https://repository.uantwerpen.be/docman/iruaauth/ba23c4/130396.pdf
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Handle