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Issue 31, 2015
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In-line and selective phase separation of medium-chain carboxylic acids using membrane electrolysis

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Abstract

We had extracted n-caproate from bioreactor broth. Here, we introduced in-line membrane electrolysis that utilized a pH gradient between two chambers to transfer the product into undissociated n-caproic acid without chemical addition. Due to the low maximum solubility of this acid, selective phase separation occurred, allowing simple product separation into an oily liquid containing ∼90% n-caproic and n-caprylic acid.

Graphical abstract: In-line and selective phase separation of medium-chain carboxylic acids using membrane electrolysis

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Publication details

The article was received on 15 Feb 2015, accepted on 12 Mar 2015 and first published on 12 Mar 2015


Article type: Communication
DOI: 10.1039/C5CC01897H
Author version available: Download Author version (PDF)
Citation: Chem. Commun., 2015,51, 6847-6850
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    In-line and selective phase separation of medium-chain carboxylic acids using membrane electrolysis

    J. Xu, J. J. L. Guzman, S. J. Andersen, K. Rabaey and L. T. Angenent, Chem. Commun., 2015, 51, 6847
    DOI: 10.1039/C5CC01897H

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