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Fractionation of black liquor – aliphatic carboxylic acids

Fractionation of black liquor – aliphatic carboxylic acids General approach Roughly one half of the wood dry matter degrades and dissolves in kraft pulping.1,2 Therefore, under alkaline conditions, a substantial amount of hemicelluloses is converted into aliphatic carboxylic acids, which, together with lignin degradation fragments and extractives, are removed from the initial chips and dissolved
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This page has been updated 12.05.2021