SE9301834D0 - A PULP PRODUCTION PROCESS - Google Patents

A PULP PRODUCTION PROCESS

Info

Publication number
SE9301834D0
SE9301834D0 SE9301834A SE9301834A SE9301834D0 SE 9301834 D0 SE9301834 D0 SE 9301834D0 SE 9301834 A SE9301834 A SE 9301834A SE 9301834 A SE9301834 A SE 9301834A SE 9301834 D0 SE9301834 D0 SE 9301834D0
Authority
SE
Sweden
Prior art keywords
pulp
waste
production process
cellulosic
pulp production
Prior art date
Application number
SE9301834A
Other languages
Swedish (sv)
Other versions
SE501309C2 (en
SE9301834L (en
Original Assignee
Ab Klippans Finpappersbruk
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 Ab Klippans Finpappersbruk filed Critical Ab Klippans Finpappersbruk
Priority to SE9301834A priority Critical patent/SE501309C2/en
Publication of SE9301834D0 publication Critical patent/SE9301834D0/en
Priority to PCT/SE1994/000499 priority patent/WO1994028236A1/en
Priority to EP19940917858 priority patent/EP0704002A1/en
Priority to CZ953133A priority patent/CZ313395A3/en
Priority to AU69400/94A priority patent/AU6940094A/en
Publication of SE9301834L publication Critical patent/SE9301834L/en
Publication of SE501309C2 publication Critical patent/SE501309C2/en
Priority to NO954820A priority patent/NO954820L/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • 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
    • D21C5/02—Working-up waste paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Paper (AREA)

Abstract

A process for the production of a waste-based cellulosic pulp useful for the manufacture of paper and paperboard whether used in admixture with virgin pulp or as the sole pulp component, comprising the steps: a) digesting a waste cellulosic material in an aqueous cooking liquor having a pH lower than about neutral and containing free and/or bound SO2 and a base; b) carrying out digestion with the exclusion of atmospheric oxygen at an elevated temperature, such as within the range about 120 to 160 DEG C and at a correspondingly increased pressure; and c) recovering the resulting cellulosic pulp.
SE9301834A 1993-05-28 1993-05-28 Pulp production by digestion of a mixture of cellulose-based recycled material and raw wood SE501309C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9301834A SE501309C2 (en) 1993-05-28 1993-05-28 Pulp production by digestion of a mixture of cellulose-based recycled material and raw wood
PCT/SE1994/000499 WO1994028236A1 (en) 1993-05-28 1994-05-26 A pulp production process
EP19940917858 EP0704002A1 (en) 1993-05-28 1994-05-26 A pulp production process
CZ953133A CZ313395A3 (en) 1993-05-28 1994-05-26 Process for preparing fibrous material
AU69400/94A AU6940094A (en) 1993-05-28 1994-05-26 A pulp production process
NO954820A NO954820L (en) 1993-05-28 1995-11-27 Process for mass production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301834A SE501309C2 (en) 1993-05-28 1993-05-28 Pulp production by digestion of a mixture of cellulose-based recycled material and raw wood

Publications (3)

Publication Number Publication Date
SE9301834D0 true SE9301834D0 (en) 1993-05-28
SE9301834L SE9301834L (en) 1994-11-29
SE501309C2 SE501309C2 (en) 1995-01-09

Family

ID=20390091

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9301834A SE501309C2 (en) 1993-05-28 1993-05-28 Pulp production by digestion of a mixture of cellulose-based recycled material and raw wood

Country Status (6)

Country Link
EP (1) EP0704002A1 (en)
AU (1) AU6940094A (en)
CZ (1) CZ313395A3 (en)
NO (1) NO954820L (en)
SE (1) SE501309C2 (en)
WO (1) WO1994028236A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4334422C2 (en) * 1993-10-08 1996-07-11 Fraunhofer Ges Forschung Lye from chemical-thermal digestion of chipboard and fiberboard that has already been processed, binder, processes for their production and their use as extenders for wood-based binders
WO2022178391A1 (en) * 2021-02-22 2022-08-25 Westrock Mwv, Llc Method for manufacturing bleached pulp, feedstock, and packaging system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1327590A (en) * 1916-04-14 1920-01-06 John M Burby Process of repulping old or waste paper
US1298779A (en) * 1918-09-30 1919-04-01 Wesley Milton Osborne Process for removing ink and coloring-matter from printed paper.
US1782382A (en) * 1929-01-04 1930-11-18 Alexander Orgovan Process for the manufacture of paper from plant fiber
DE2805445C2 (en) * 1978-02-09 1979-06-07 J.M. Voith Gmbh, 7920 Heidenheim Process for recycling high quality waste paper
FR2639371B1 (en) * 1988-11-24 1995-04-14 Atochem PROCESS FOR THE BLEACHING OF DEINKED PASTA
US5147503B1 (en) * 1991-03-01 1997-10-21 Domtar Inc Recycling waste cellulosic material with sodium sulphide digestion

Also Published As

Publication number Publication date
NO954820L (en) 1996-01-24
SE501309C2 (en) 1995-01-09
AU6940094A (en) 1994-12-20
SE9301834L (en) 1994-11-29
NO954820D0 (en) 1995-11-27
WO1994028236A1 (en) 1994-12-08
EP0704002A1 (en) 1996-04-03
CZ313395A3 (en) 1996-05-15

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