Search for dissertations about: "Delignification"

Showing result 21 - 25 of 58 swedish dissertations containing the word Delignification.

  2. 21. Extended impregnation kraft cooking of softwood : Effects on reject, yield, pulping uniformity, and physical properties

    Author : Katarina Karlström; Mikael E. Lindström; Elisabet Brännvall; Kristofer Gamstedt; Anna Jacobs; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high kappa number pulp; extended impregnation; softwood; spruce; picea abies; pine; pinus sylvestris; uniform delignification; kappa number distribution; reject; yield; tensile index; tensile stiffness index; SCT; starch multilayers; mechano-sorptive creep; hygroexpansion; dimensional stability; eucalypt; birch; acacia; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Abstract : Converting wood into paper is a complex process involving many different stages, one of which is pulping. Pulping involves liberating the wood fibres from each other, which can be done either chemically or mechanically. READ MORE

  4. 22. Delignification and bleachability of kraft pulps pretreated with nitrogen dioxide

    Author : Per Larsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chlorine dioxide; oxygen bleaching; molecular mass; paper properties; ozone bleaching; nitrogen dioxide; kraft pulps; pretreatment; gel permeation chromatography; indulin AT; hydrogen peroxide; consecutive alkaline extractions;

    Abstract : .... READ MORE

  5. 23. Characterization of acetylated hemicelluloses from hardwood

    Author : Maria Nordström; KTH; []
    Keywords : acetyl; aspen; birch; chlorite delignification; degree of acetylation;

    Abstract : .... READ MORE

  6. 24. Some aspects on extended kraft pulping : the influence of cooking parameters on delignification, bleachability and carbohydrate degradation

    Author : Catrin A-S. Gustavsson; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  7. 25. The impact of extended oxygen delignification on bleachability of kraft pulps

    Author : Camilla Rööst; KTH; []
    Keywords : ;

    Abstract : .... READ MORE