Lignosulfonates, i.e. technical lignins derived from the sulphite process, suffer from high heterogeneity. With the aim of obtaining materials with more homogeneous and defined characteristics, this contribution focuses on lignosulfonate fractionation, specifically by applying sequential solvent extraction (SSE) to softwood and hardwood lignosulfonate samples. The obtained fractions are fully characterized from the physicochemical point of view.
Solvent-based fractionation of lignosulfonates
Matteo Gigli;Massimo Sgarzi;Claudia Crestini
2023-01-01
Abstract
Lignosulfonates, i.e. technical lignins derived from the sulphite process, suffer from high heterogeneity. With the aim of obtaining materials with more homogeneous and defined characteristics, this contribution focuses on lignosulfonate fractionation, specifically by applying sequential solvent extraction (SSE) to softwood and hardwood lignosulfonate samples. The obtained fractions are fully characterized from the physicochemical point of view.
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