Selective lignin fractionation using CO2-expanded 2-methyltetrahydrofuran (2-MTHF)

Upon CO2 pressurization, 2-methyltetrahydrofuran (2-MTHF) expands. The expanded phase exerts different solvation properties, triggering fractional lignin precipitation. Depending on the actual CO2 pressure, fractions of lignin with a gradient of different sizes and chemical properties are selectivel...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2021-09, Vol.23 (17), p.6330-6336
Main Authors: Weidener, Dennis, Klose, Holger, William Graf von Westarp, Jupke, Andreas, Leitner, Walter, Pablo Domínguez de María, Grande, Philipp M
Format: Article
Language:English
Subjects:
Carbon dioxide
Chemical properties
Fractionation
Green chemistry
Lignin
Raw materials
Solvation
Online Access:Get full text
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Description
Summary:Upon CO2 pressurization, 2-methyltetrahydrofuran (2-MTHF) expands. The expanded phase exerts different solvation properties, triggering fractional lignin precipitation. Depending on the actual CO2 pressure, fractions of lignin with a gradient of different sizes and chemical properties are selectively precipitated. A range of raw materials and applications may be thus reached.
ISSN:1463-9262
1463-9270
DOI:10.1039/d1gc01651b