SE0102012L - Washing of pulp - Google Patents

Washing of pulp

Info

Publication number
SE0102012L
SE0102012L SE0102012A SE0102012A SE0102012L SE 0102012 L SE0102012 L SE 0102012L SE 0102012 A SE0102012 A SE 0102012A SE 0102012 A SE0102012 A SE 0102012A SE 0102012 L SE0102012 L SE 0102012L
Authority
SE
Sweden
Prior art keywords
pulp
washing
fibers
cations
swelling
Prior art date
Application number
SE0102012A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE0102012D0 (en
Inventor
Rickard Andersson
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Priority to SE0102012A priority Critical patent/SE0102012L/en
Publication of SE0102012D0 publication Critical patent/SE0102012D0/en
Priority to PCT/SE2002/001081 priority patent/WO2002099185A1/en
Publication of SE0102012L publication Critical patent/SE0102012L/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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

By subjecting pulp to a chemical pretreatment step involving the adjustment of the level of cations, preferably Mg<2+>, the bulk and swelling of the fibers can be reduced, improving the drainage and compression properties of said fibers.
SE0102012A 2001-06-07 2001-06-07 Washing of pulp SE0102012L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0102012A SE0102012L (en) 2001-06-07 2001-06-07 Washing of pulp
PCT/SE2002/001081 WO2002099185A1 (en) 2001-06-07 2002-06-05 Chemical pretreatment step in pulp washing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0102012A SE0102012L (en) 2001-06-07 2001-06-07 Washing of pulp

Publications (2)

Publication Number Publication Date
SE0102012D0 SE0102012D0 (en) 2001-06-07
SE0102012L true SE0102012L (en) 2002-12-08

Family

ID=20284389

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0102012A SE0102012L (en) 2001-06-07 2001-06-07 Washing of pulp

Country Status (2)

Country Link
SE (1) SE0102012L (en)
WO (1) WO2002099185A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9115214B2 (en) 2012-09-24 2015-08-25 Abengoa Bioenergy New Technologies, Llc Methods for controlling pretreatment of biomass
WO2019197862A1 (en) 2018-04-13 2019-10-17 Eldorado Brasil Celulose S.A. A process for manufacturing an improved web material by the in-situ measurement and adjustment of ion concentration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273625A (en) * 1990-12-10 1993-12-28 Macmillan Bloedel Limited Method of treating bleached pulp on a washer with calcium ions to remove sodium ions
SE500353C2 (en) * 1992-10-26 1994-06-06 Sca Wifsta Oestrand Ab Peroxide bleaching of sulfate pulp with the addition of magnesium before bleaching
EP0709521A1 (en) * 1994-10-26 1996-05-01 Betz Europe, Inc. Method for increasing pulp consistency

Also Published As

Publication number Publication date
SE0102012D0 (en) 2001-06-07
WO2002099185A1 (en) 2002-12-12

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Legal Events

Date Code Title Description
NAV Patent application has lapsed