SE9604166L - Selective processing of lignocellulosic material - Google Patents

Selective processing of lignocellulosic material

Info

Publication number
SE9604166L
SE9604166L SE9604166A SE9604166A SE9604166L SE 9604166 L SE9604166 L SE 9604166L SE 9604166 A SE9604166 A SE 9604166A SE 9604166 A SE9604166 A SE 9604166A SE 9604166 L SE9604166 L SE 9604166L
Authority
SE
Sweden
Prior art keywords
fraction
chemicals
lipase
treated
lignocellulosic material
Prior art date
Application number
SE9604166A
Other languages
Swedish (sv)
Other versions
SE9604166D0 (en
Inventor
Arne Lindahl
Original Assignee
Arne Lindahl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arne Lindahl filed Critical Arne Lindahl
Priority to SE9604166A priority Critical patent/SE9604166L/en
Publication of SE9604166D0 publication Critical patent/SE9604166D0/en
Publication of SE9604166L publication Critical patent/SE9604166L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/086—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The preparation of products based on lignocellulose fibres that have been split into long and short fibre fractions, comprises treating each fibre fraction separately with chemicals. Preferably different chemicals are used and at least one fraction is treated with an enzyme (preferably lipase). An alkali (preferably sodium hydroxide) is used to treat the lipase-treated fraction(s). Other suitable treatment chemicals include phosphates, surfactant wetting agents and chelating agents (eg. EDTA or DTPA).
SE9604166A 1996-11-12 1996-11-12 Selective processing of lignocellulosic material SE9604166L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9604166A SE9604166L (en) 1996-11-12 1996-11-12 Selective processing of lignocellulosic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604166A SE9604166L (en) 1996-11-12 1996-11-12 Selective processing of lignocellulosic material

Publications (2)

Publication Number Publication Date
SE9604166D0 SE9604166D0 (en) 1996-11-12
SE9604166L true SE9604166L (en) 1998-05-13

Family

ID=20404606

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604166A SE9604166L (en) 1996-11-12 1996-11-12 Selective processing of lignocellulosic material

Country Status (1)

Country Link
SE (1) SE9604166L (en)

Also Published As

Publication number Publication date
SE9604166D0 (en) 1996-11-12

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