SE0201679D0 - Process in the manufacture of cellulose pulp - Google Patents

Process in the manufacture of cellulose pulp

Info

Publication number
SE0201679D0
SE0201679D0 SE0201679A SE0201679A SE0201679D0 SE 0201679 D0 SE0201679 D0 SE 0201679D0 SE 0201679 A SE0201679 A SE 0201679A SE 0201679 A SE0201679 A SE 0201679A SE 0201679 D0 SE0201679 D0 SE 0201679D0
Authority
SE
Sweden
Prior art keywords
cellulose pulp
raw material
softwood
manufacture
stages
Prior art date
Application number
SE0201679A
Other languages
Swedish (sv)
Other versions
SE0201679L (en
SE522415C2 (en
Inventor
Mikael Lindstroem
Vidar Snekkenes
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE0201679A priority Critical patent/SE522415C2/en
Publication of SE0201679D0 publication Critical patent/SE0201679D0/en
Priority to EP03721262A priority patent/EP1513981A1/en
Priority to US10/514,409 priority patent/US20050252625A1/en
Priority to PCT/SE2003/000712 priority patent/WO2003102296A1/en
Priority to AU2003235376A priority patent/AU2003235376A1/en
Publication of SE0201679L publication Critical patent/SE0201679L/en
Publication of SE522415C2 publication Critical patent/SE522415C2/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes

Landscapes

  • Paper (AREA)

Abstract

The invention concerns a method for the production of cellulose pulp. A wood raw material that principally comprises softwood, preferably in the form of cut wood chips, is treated in several stages in various treatment steps. One of the stages is cooking the material in an alkali cooking fluid, with the aim of obtaining improved quality with respect to tensile strength, and of obtaining higher yield. A controlled addition of wood raw material in the form of hardwood at an amount corresponding to 1-20% of the amount of softwood, preferably 3-15%, and more preferably at least 5%, takes place.
SE0201679A 2002-06-03 2002-06-03 Process and cookery system for preparing cellulose pulp SE522415C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE0201679A SE522415C2 (en) 2002-06-03 2002-06-03 Process and cookery system for preparing cellulose pulp
EP03721262A EP1513981A1 (en) 2002-06-03 2003-05-02 Process for the manufacturing of cellulose pulp
US10/514,409 US20050252625A1 (en) 2002-06-03 2003-05-02 Process for the manufacturing of cellulose pulp
PCT/SE2003/000712 WO2003102296A1 (en) 2002-06-03 2003-05-02 Process for the manufacturing of cellulose pulp
AU2003235376A AU2003235376A1 (en) 2002-06-03 2003-05-02 Process for the manufacturing of cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0201679A SE522415C2 (en) 2002-06-03 2002-06-03 Process and cookery system for preparing cellulose pulp

Publications (3)

Publication Number Publication Date
SE0201679D0 true SE0201679D0 (en) 2002-06-03
SE0201679L SE0201679L (en) 2003-12-04
SE522415C2 SE522415C2 (en) 2004-02-10

Family

ID=20288056

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0201679A SE522415C2 (en) 2002-06-03 2002-06-03 Process and cookery system for preparing cellulose pulp

Country Status (5)

Country Link
US (1) US20050252625A1 (en)
EP (1) EP1513981A1 (en)
AU (1) AU2003235376A1 (en)
SE (1) SE522415C2 (en)
WO (1) WO2003102296A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518993E (en) * 2002-01-24 2013-04-23 Metso Paper Sweden Ab Preparation of cellulose pulp by boiling with a boiling liquid containing evaporated black liquor
NZ591346A (en) * 2011-02-28 2011-10-28 Wpi Internat Ltd Improved method of producing pulp from pinus radiata
CN115748282A (en) * 2017-06-28 2023-03-07 尤妮佳股份有限公司 Recycled pulp fibers, tissue paper, nonwoven fabrics, hygiene products, cardboard, paper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152197A (en) * 1974-09-23 1979-05-01 Mo Och Domsjo Ab Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion
JPS5358003A (en) * 1976-11-02 1978-05-25 Oji Paper Co Process for making alkali pulp from needleeleaf trees

Also Published As

Publication number Publication date
EP1513981A1 (en) 2005-03-16
WO2003102296A1 (en) 2003-12-11
SE0201679L (en) 2003-12-04
SE522415C2 (en) 2004-02-10
US20050252625A1 (en) 2005-11-17
AU2003235376A1 (en) 2003-12-19

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