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Solvent Extraction and Ion Exchange Volume 38, 2020 - Issue 1: Solvent Extraction Equipment Developments
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Original Articles

Biobased Support Layers for the Fractionation and Selective Extraction of Lignosulfonates

Marlene KienbergerInstitute of Chemical Engineering and Environmental Technology, Graz University of Technology, Graz, AustriaCorrespondence[email protected]
,
Paul DemmelmayerInstitute of Chemical Engineering and Environmental Technology, Graz University of Technology, Graz, Austria
,
Michael WeißlInstitute of Paper, Pulp and Fiber Technology, Graz University of Technology, Graz, Austria
,
Armin ZanklInstitute for Electron Microscopy and Nanoanalysis, NAWI Graz, Graz University of Technology and Centre for Electron Microscopy Graz, Graz, Austria
&
Stefan SpirkInstitute of Paper, Pulp and Fiber Technology, Graz University of Technology, Graz, AustriaORCID Iconhttps://orcid.org/0000-0002-9220-3440
ORCID Icon
Pages 132-141 | Published online: 26 Dec 2019
 
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ABSTRACT

The paper presents an experimental study on the preparation and characterization of cellulose films and their use for reactive lignosulfonate extraction. The extraction of lignosulfonates leads to emulsion and crud formation when standard equipment is applied. By using cellulose films as a support layer between the aqueous feed phase and the organic extractant phase, emulsion formation is prevented. The results showed that selective separation and a fractionation of the lignosulfonates can be realized with this novel approach simultaneously.

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Disclosure statement

There are no financial conflicts of interest to disclose.

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