SE9000340L - Foerfarande vid blekning av lignocellulosahaltigt material - Google Patents

Foerfarande vid blekning av lignocellulosahaltigt material

Info

Publication number
SE9000340L
SE9000340L SE9000340A SE9000340A SE9000340L SE 9000340 L SE9000340 L SE 9000340L SE 9000340 A SE9000340 A SE 9000340A SE 9000340 A SE9000340 A SE 9000340A SE 9000340 L SE9000340 L SE 9000340L
Authority
SE
Sweden
Prior art keywords
pulp
stage
chlorine dioxide
lignocellulosally
blacking
Prior art date
Application number
SE9000340A
Other languages
Unknown language ( )
English (en)
Other versions
SE9000340D0 (sv
Inventor
R L Andersson
Original Assignee
Eka Nobel Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20378411&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9000340(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9000340A priority Critical patent/SE9000340L/sv
Publication of SE9000340D0 publication Critical patent/SE9000340D0/sv
Priority to AU72356/91A priority patent/AU7235691A/en
Priority to AT91903930T priority patent/ATE115208T1/de
Priority to BR919105959A priority patent/BR9105959A/pt
Priority to CA002074715A priority patent/CA2074715C/en
Priority to EP91903930A priority patent/EP0500813B1/en
Priority to PCT/SE1991/000051 priority patent/WO1991011554A1/en
Priority to JP3504027A priority patent/JPH0672385B2/ja
Priority to ES91903930T priority patent/ES2065007T3/es
Priority to PT96630A priority patent/PT96630B/pt
Publication of SE9000340L publication Critical patent/SE9000340L/sv
Priority to FI923420A priority patent/FI923420A0/fi
Priority to NO922995A priority patent/NO301177B1/no

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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
SE9000340A 1990-01-31 1990-01-31 Foerfarande vid blekning av lignocellulosahaltigt material SE9000340L (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9000340A SE9000340L (sv) 1990-01-31 1990-01-31 Foerfarande vid blekning av lignocellulosahaltigt material
ES91903930T ES2065007T3 (es) 1990-01-31 1991-01-24 Procedimiento para blanquear material lignocelulosico.
JP3504027A JPH0672385B2 (ja) 1990-01-31 1991-01-24 リグノセルロース材料の漂白方法
EP91903930A EP0500813B1 (en) 1990-01-31 1991-01-24 Process for bleaching of ligno-cellulosic material
AT91903930T ATE115208T1 (de) 1990-01-31 1991-01-24 Verfahren zum bleichen von lignozellulosehaltigen materialien.
BR919105959A BR9105959A (pt) 1990-01-31 1991-01-24 Processo para o alvejamento de material ligno-celulosico
CA002074715A CA2074715C (en) 1990-01-31 1991-01-24 Process for bleaching of ligno-cellulosic material
AU72356/91A AU7235691A (en) 1990-01-31 1991-01-24 Process for bleaching of ligno-cellulosic material
PCT/SE1991/000051 WO1991011554A1 (en) 1990-01-31 1991-01-24 Process for bleaching of ligno-cellulosic material
PT96630A PT96630B (pt) 1990-01-31 1991-01-31 Processo de branqueamento de material lenho-celulosico
FI923420A FI923420A0 (fi) 1990-01-31 1992-07-29 Foerfarande foer blekning av ligno- cellulosahaltigt material.
NO922995A NO301177B1 (no) 1990-01-31 1992-07-29 Fremgangsmåte for nedsettelse av mengden av dannet klororganiske bestanddeler i lignocelluloseholdige masser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000340A SE9000340L (sv) 1990-01-31 1990-01-31 Foerfarande vid blekning av lignocellulosahaltigt material

Publications (2)

Publication Number Publication Date
SE9000340D0 SE9000340D0 (sv) 1990-01-31
SE9000340L true SE9000340L (sv) 1991-08-01

Family

ID=20378411

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000340A SE9000340L (sv) 1990-01-31 1990-01-31 Foerfarande vid blekning av lignocellulosahaltigt material

Country Status (12)

Country Link
EP (1) EP0500813B1 (sv)
JP (1) JPH0672385B2 (sv)
AT (1) ATE115208T1 (sv)
AU (1) AU7235691A (sv)
BR (1) BR9105959A (sv)
CA (1) CA2074715C (sv)
ES (1) ES2065007T3 (sv)
FI (1) FI923420A0 (sv)
NO (1) NO301177B1 (sv)
PT (1) PT96630B (sv)
SE (1) SE9000340L (sv)
WO (1) WO1991011554A1 (sv)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502706E (sv) 1994-04-05 1999-06-18 Mo Och Domsjoe Ab Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg
SE514697C2 (sv) * 1994-08-31 2001-04-02 Valmet Fibertech Ab Eliminering av metalljoner vid blekning av massa
BR9901291B1 (pt) 1999-04-27 2011-11-01 processo para branqueamento de polpas quìmicas de baixa consistência.
CA2376528A1 (en) * 1999-06-08 2000-12-14 Nana Barde Bleaching pulp with high-pressure o2
JP2004522008A (ja) * 2001-06-06 2004-07-22 クヴアナ・パルピング・アクチボラグ 二酸化塩素漂白で形成された有機結合塩素の低減
US8920603B2 (en) 2006-10-11 2014-12-30 Akzo Nobel N.V. Bleaching of pulp
US20090000751A1 (en) * 2007-06-29 2009-01-01 Caifang Yin Bleaching process with at least one extraction stage
RU2445415C1 (ru) * 2010-11-18 2012-03-20 Государственное образовательное учреждение высшего профессионального образования "Пермский государственный технический университет" Способ отбелки сульфатной целлюлозы
SE1650050A1 (sv) * 2016-01-18 2017-04-25 Valmet Oy Chlorine dioxide stage for controlling viscosity in dissolving pulps
FR3062138B1 (fr) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100709A (en) * 1965-06-25 1968-01-24 Pulp Paper Res Inst Two-stage purification of fibrous cellulose material
US3720577A (en) * 1970-05-25 1973-03-13 Int Paper Co Chlorine dioxide-peracetic acid-chlorine dioxide pulp bleaching sequence
CA1056558A (en) * 1974-06-11 1979-06-19 Canadian Industries Limited Strenghtening of mechanical pulp by chemical treatment
JPS5249305A (en) * 1975-10-16 1977-04-20 Mitsubishi Gas Chemical Co Finishing process for pulp bleached with oxygen
JPS5328523A (en) * 1976-08-30 1978-03-16 Hitachi Metals Ltd Method of horizontally continuously casting roll and roller
SE7613827L (sv) * 1976-12-09 1978-06-10 Sca Development Ab Sett att behandla lignocellulosahaltigt material.
FR2416297A1 (fr) * 1978-01-31 1979-08-31 Europeen Cellulose Procede anti-polluant de blanchiment de pate a papier
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
JPH01168985A (ja) * 1987-12-22 1989-07-04 Oji Paper Co Ltd リグノセルロース物質の漂白方法

Also Published As

Publication number Publication date
ATE115208T1 (de) 1994-12-15
CA2074715C (en) 2000-09-05
FI923420A (fi) 1992-07-29
CA2074715A1 (en) 1991-08-01
NO922995L (no) 1992-09-15
PT96630B (pt) 2001-05-31
PT96630A (pt) 1991-10-15
JPH0672385B2 (ja) 1994-09-14
ES2065007T3 (es) 1995-02-01
WO1991011554A1 (en) 1991-08-08
NO922995D0 (no) 1992-07-29
BR9105959A (pt) 1992-10-13
AU7235691A (en) 1991-08-21
JPH04507118A (ja) 1992-12-10
EP0500813A1 (en) 1992-09-02
FI923420A0 (fi) 1992-07-29
SE9000340D0 (sv) 1990-01-31
EP0500813B1 (en) 1994-12-07
NO301177B1 (no) 1997-09-22

Similar Documents

Publication Publication Date Title
US4804440A (en) Multistage brightening of high yield and ultra high-yield wood pulps
EP0512590B1 (en) Process for bleaching of lignocellulose-containing material
NO180495C (no) Fremgangsmåte ved delignifisering og bleking av kjemisk oppsluttet lignocelluloseholdig materiale
PT754258E (pt) Metodo para o tratamento de pasta com um agente de complexacao em conjugacao com uma etapa de tratamento com dioxido de cloro
SE9000340D0 (sv) Foerfarande vid blekning av lignocellulosahaltigt material
ATE48860T1 (de) Verfahren zur herstellung eines chemimechanischen und semichemischen gebleichten faserbreis durch ein zweistufiges impraegnierungsverfahren.
SE9102589D0 (sv) Chlorine-free process for bleaching pulp
SE9700992L (sv) Förfarande för blekning av kraftmassa
NO902206L (no) Fremgangsmaate ved delignifisering av lignocellulosefibre.
EP0778909B1 (en) Pulp bleaching
FI882769A (fi) Styrning av peroxidblekning av olika traemassor.
EP0702735B1 (en) Method of bleaching pulp without using chlorine chemicals
SE9600773L (sv) Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa
SE9203121L (sv) Blekning av sulfatmassa med peroxid-ozon-peroxid

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9000340-1

Effective date: 19940519

Format of ref document f/p: F