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Klason lignin [1 record]

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Record 1 1999-10-13

English

Subject field(s)
  • Chemical Elements and Compounds
  • Biomass Energy
  • Pulp Preparation (papermaking)
DEF

... lignin ... isolated as the residue after treatment of wood meal with 72% sulphuric acid for a certain period, followed by dilution and cooking ... Up to 20%, or even more, of the lignin may dissolve in the acid, depending on the pulping process or whether the pulp is partly bleached.

French

Domaine(s)
  • Éléments et composés chimiques
  • Énergie de la biomasse
  • Préparation de la pâte à papier
DEF

Lignine obtenue selon une méthode normalisée servant à déterminer la quantité de lignine dans le bois, une fois que cette lignine est isolée après un traitement qui consiste à plonger le bois dans une solution d'acide sulfurique à 72 % durant un certain temps, suivi d'une dilution et d'une hydrolyse sous reflux. [...] Jusqu'à 20 % ou plus de la lignine totale peut être dissoute dans l'acide, selon le procédé de fabrication ou le degré de blancheur de la pâte.

Spanish

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