Abstract:Kraft lignin is a residue of the kraft pulping process that is normally burnt to produce steam and energy. However, given its high availability as the second most abundant biopolymer, a lignin biorefinery is a promising approach to reach a sustainable bioeconomy. Nevertheless, because of lignin’s complex structure, low reactivity and heterogeneity, this is still challenging. The modification of lignin to produce lignosulfonates is a possible use once they have already been validated by the market as plasticize… Show more
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