Biorefinery of paulownia by autohydrolysis and soda-anthraquinone delignification process

Author(s): García-Moralesa M, Minerva FL, Zamudio AM, Alfaro A, de Alva HE, et al.

Abstract

Lignin is one of the most abundant polymers in nature. Its physical and chemical properties confer it a high potential for various uses including the production of thermoplastic matrices. This work characterized various types of lignin obtained by alkaline delignification of paulownia with soda–anthraquinone. The delignification process was carried out with or without previous autohydrolysis. The products obtained after evaporation or acidification were used to produce polylactic acid–lignin composites.

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