A process for the production of a hemicellulose hydrolysate and special pulp

作者: Panu Tikka , Nils Erik Virkola

DOI:

关键词: Materials sciencePulp (paper)Organic chemistryAnthraquinoneDissolutionHemicelluloseLigninCatalysisHydrolysate

摘要: The invention relates to a process for the pro­duction of hemicellulose hydrolysate and special pulp through two steps, first step comprising prehydrolysis material second dissolving lignin contained in prehydro­lyzed material. According is carried out by means neutral sul­phite cooking with anthraquinone or derivative thereof as catalyst, pH liquor being initially at least 10.