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SE9301960L - Blekning av kemisk massa med peroxid vid övertryck - Google Patents

Blekning av kemisk massa med peroxid vid övertryck

Info

Publication number
SE9301960L
SE9301960L SE9301960A SE9301960A SE9301960L SE 9301960 L SE9301960 L SE 9301960L SE 9301960 A SE9301960 A SE 9301960A SE 9301960 A SE9301960 A SE 9301960A SE 9301960 L SE9301960 L SE 9301960L
Authority
SE
Sweden
Prior art keywords
bleaching
pct
exceeding
peroxide
vessel
Prior art date
Application number
SE9301960A
Other languages
Unknown language ( )
English (en)
Other versions
SE9301960D0 (sv
SE500616C2 (sv
Inventor
Petter Tibbling
Ulla Ekstroem
Erik Nilsson
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20390198&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9301960(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of SE9301960D0 publication Critical patent/SE9301960D0/sv
Priority to SE9301960A priority Critical patent/SE500616C2/sv
Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to FI950526A priority patent/FI950526A0/sv
Priority to RU96100538/12A priority patent/RU2120511C1/ru
Priority to EP94904044A priority patent/EP0677124B1/en
Priority to DE69302020T priority patent/DE69302020T2/de
Priority to CZ943022A priority patent/CZ282874B6/cs
Priority to PCT/SE1993/000988 priority patent/WO1994029511A1/en
Priority to BR9306842A priority patent/BR9306842A/pt
Priority to AT94904044T priority patent/ATE136073T1/de
Priority to ES94904044T priority patent/ES2088701T3/es
Priority to CA002163985A priority patent/CA2163985C/en
Priority to JP7501638A priority patent/JP2716104B2/ja
Priority to NZ259440A priority patent/NZ259440A/en
Priority to AU58248/94A priority patent/AU677373B2/en
Priority to US08/244,637 priority patent/US5571377A/en
Priority to ZA943504A priority patent/ZA943504B/xx
Priority to MA23528A priority patent/MA23215A1/fr
Priority to CN94192380A priority patent/CN1044504C/zh
Priority to AU69872/94A priority patent/AU6987294A/en
Priority to PCT/SE1994/000556 priority patent/WO1994029515A1/en
Publication of SE500616C2 publication Critical patent/SE500616C2/sv
Publication of SE9301960L publication Critical patent/SE9301960L/sv
Priority to SE9404409A priority patent/SE516684C2/sv
Priority to SE9502516A priority patent/SE9502516D0/sv
Priority to SE9502512A priority patent/SE9502512D0/sv
Priority to SE9502515A priority patent/SE9502515D0/sv
Priority to SE9502513A priority patent/SE9502513D0/sv
Priority to SE9502511A priority patent/SE9502511L/sv
Priority to SE9502510A priority patent/SE9502510L/sv
Priority to SE9502514A priority patent/SE9502514D0/sv
Priority to NO954464A priority patent/NO954464D0/no
Priority to GR960401609T priority patent/GR3020235T3/el
Priority to US08/740,832 priority patent/US6149766A/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Detergent Compositions (AREA)
  • Disintegrating Or Milling (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Food-Manufacturing Devices (AREA)
SE9301960A 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck SE500616C2 (sv)

Priority Applications (31)

Application Number Priority Date Filing Date Title
SE9301960A SE500616C2 (sv) 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck
AU58248/94A AU677373B2 (en) 1993-06-08 1993-11-18 Process in association with pulp bleaching
US08/244,637 US5571377A (en) 1993-06-08 1993-11-18 Process for peroxide bleaching of chemical pulp in a pressurized bleach vessel
BR9306842A BR9306842A (pt) 1993-06-08 1993-11-18 Processo para alvejamento isento de cloro de pasta química
AT94904044T ATE136073T1 (de) 1993-06-08 1993-11-18 Verfahren in zusammenhang mit dem zellstoffbleichen
EP94904044A EP0677124B1 (en) 1993-06-08 1993-11-18 Process in association with pulp bleaching
DE69302020T DE69302020T2 (de) 1993-06-08 1993-11-18 Verfahren in zusammenhang mit dem zellstoffbleichen
CZ943022A CZ282874B6 (cs) 1993-06-08 1993-11-18 Způsob bělení papíroviny
PCT/SE1993/000988 WO1994029511A1 (en) 1993-06-08 1993-11-18 Process in association with pulp bleaching
FI950526A FI950526A0 (sv) 1993-06-08 1993-11-18 Förfarande i samband med massablekning
RU96100538/12A RU2120511C1 (ru) 1993-06-08 1993-11-18 Способ бесхлорного отбеливания химической целлюлозы
ES94904044T ES2088701T3 (es) 1993-06-08 1993-11-18 Proceso asociado al blanqueo de pasta de papel.
CA002163985A CA2163985C (en) 1993-06-08 1993-11-18 Process in associaton with pulp bleaching
JP7501638A JP2716104B2 (ja) 1993-06-08 1993-11-18 パルプの漂白方法
NZ259440A NZ259440A (en) 1993-06-08 1993-11-18 Chlorine-free peroxide bleaching of pulp at elevated temperature and pressure, the bleaching vessel meeting particular requirements of surface area exposed and cross-sectional area
ZA943504A ZA943504B (en) 1993-06-08 1994-05-20 Process in association with pulp bleaching
MA23528A MA23215A1 (fr) 1993-06-08 1994-06-06 Procede associe au blanchiment de pate
CN94192380A CN1044504C (zh) 1993-06-08 1994-06-07 纸浆漂白的方法
AU69872/94A AU6987294A (en) 1993-06-08 1994-06-07 Process in association with pulp bleaching
PCT/SE1994/000556 WO1994029515A1 (en) 1993-06-08 1994-06-07 Process in association with pulp bleaching
SE9404409A SE516684C2 (sv) 1993-06-08 1994-12-16 Blekning av kemisk massa med peroxid vid övertryck
SE9502514A SE9502514D0 (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
SE9502510A SE9502510L (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
SE9502511A SE9502511L (sv) 1993-06-08 1995-07-10 Förfarande vid massblekning
SE9502513A SE9502513D0 (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
SE9502512A SE9502512D0 (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
SE9502516A SE9502516D0 (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
SE9502515A SE9502515D0 (sv) 1993-06-08 1995-07-10 Förfarande vid massablekning
NO954464A NO954464D0 (no) 1993-06-08 1995-11-07 Fremgangsmåte i forbindelse med massebleking
GR960401609T GR3020235T3 (en) 1993-06-08 1996-06-14 Process in association with pulp bleaching.
US08/740,832 US6149766A (en) 1993-06-08 1996-11-04 Process for peroxide bleaching of chemical pulp in a pressurized bleaching vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301960A SE500616C2 (sv) 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck

Publications (3)

Publication Number Publication Date
SE9301960D0 SE9301960D0 (sv) 1993-06-08
SE9301960L true SE9301960L (sv) 1994-07-25
SE500616C2 SE500616C2 (sv) 1994-07-25

Family

ID=20390198

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9301960A SE500616C2 (sv) 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck

Country Status (20)

Country Link
US (1) US5571377A (sv)
EP (1) EP0677124B1 (sv)
JP (1) JP2716104B2 (sv)
CN (1) CN1044504C (sv)
AT (1) ATE136073T1 (sv)
AU (2) AU677373B2 (sv)
BR (1) BR9306842A (sv)
CA (1) CA2163985C (sv)
CZ (1) CZ282874B6 (sv)
DE (1) DE69302020T2 (sv)
ES (1) ES2088701T3 (sv)
FI (1) FI950526A0 (sv)
GR (1) GR3020235T3 (sv)
MA (1) MA23215A1 (sv)
NO (1) NO954464D0 (sv)
NZ (1) NZ259440A (sv)
RU (1) RU2120511C1 (sv)
SE (1) SE500616C2 (sv)
WO (2) WO1994029511A1 (sv)
ZA (1) ZA943504B (sv)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
BR9508387A (pt) * 1994-07-11 1997-11-25 Beloit Technologies Inc Vasos de alta eficiéncia pra alvejamento de materiais fibrosos lignocelulósicos celulósicos e poliméricos sintéticos
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
SE514697C2 (sv) * 1994-08-31 2001-04-02 Valmet Fibertech Ab Eliminering av metalljoner vid blekning av massa
SE506809C2 (sv) * 1994-12-08 1998-02-16 Kvaerner Pulping Tech Metod för att säkert bedriva trycksatt peroxidblekning
US6007680A (en) * 1994-12-08 1999-12-28 Kvaerner Pulping Ab Apparatus for safely conducting pressurized peroxide bleaching
US5954066A (en) * 1995-01-25 1999-09-21 Kvaerner Pulping Ab Method for controlling chemical reaction
WO1996023929A1 (en) * 1995-01-31 1996-08-08 A. Ahlstrom Corporation Bleaching pulp with peroxide at superatmospheric pressure and in multiple stages
WO1996027705A1 (en) * 1995-03-03 1996-09-12 Macmillan Bloedel Limited Peroxide bleaching
FR2747407B1 (fr) * 1996-04-12 1998-05-07 Atochem Elf Sa Procede de delignification et de blanchiment de pates a papier chimiques
US6059927A (en) * 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US6699358B1 (en) * 1998-05-15 2004-03-02 National Silicates Partnership Method for brightening chemical pulp with hydrogen peroxide using a magnesium compound in silicate solution
US6899790B2 (en) 2000-03-06 2005-05-31 Georgia-Pacific Corporation Method of providing papermaking fibers with durable curl
US6627041B2 (en) 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US20070131364A1 (en) * 2005-12-14 2007-06-14 University Of Maine Process for treating a cellulose-lignin pulp
US20100224336A1 (en) * 2005-12-14 2010-09-09 University Of Maine System Board Of Trustees Process of bleaching a wood pulp
FR2910027B1 (fr) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516447A (en) * 1947-02-24 1950-07-25 Elmer R Burling Method and apparatus for chemical treatment
GB1056126A (en) * 1964-02-17 1967-01-25 Ici Ltd Production of hydrogen peroxide
FI45574C (sv) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Förfarande för blekning av cellulosahaltiga material.
US3918898A (en) * 1972-12-06 1975-11-11 Jerome Katz Hydrogen peroxide bleaching solution and method
SE422818B (sv) * 1978-03-31 1982-03-29 Modo Chemetrics Ab Forfarande for foredling av allulosamassa genom blekning eller extrahering
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
US4427490A (en) * 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
JPS56134362A (en) * 1980-03-26 1981-10-21 Toshiba Corp Position signal generating circuit for magnetic disk device
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
SE452346C (sv) * 1982-12-17 1990-03-26 Sunds Defibrator Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
CA1251903A (en) * 1985-06-17 1989-04-04 Pulp And Paper Research Institute Of Canada Alkaline-peroxide-oxygen treatment of unbleached and chlorinated chemical pulps
SE467043B (sv) * 1989-02-13 1992-05-18 Milan Kolman Saett och anordning foer rening av en fibersuspension
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
AT393701B (de) * 1989-12-22 1991-12-10 Schmidding Wilh Gmbh & Co Verfahren zum bleichen von cellulosehaeltigen materialien sowie anlage zur durchfuehrung des verfahrens
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5171405A (en) * 1990-08-28 1992-12-15 Kamyr, Inc. Reactor having a discontinuous conduit means between surfaces of a downwardly extending stationary spiral
US5328564A (en) * 1990-09-17 1994-07-12 Kamyr, Inc. Modified digestion of paper pulp followed by ozone bleaching
EP0565625A1 (en) * 1991-01-03 1993-10-20 Union Camp Patent Holding, Inc. Chlorine-free process for bleaching lignocellulosic pulp
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid
SE469387B (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
EP0648260B1 (en) * 1992-06-26 2000-09-27 Kansas State University Research Foundation Fusobacterium necrophorum leukotoxoid vaccine
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE500353C2 (sv) * 1992-10-26 1994-06-06 Sca Wifsta Oestrand Ab Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen
SE9203366L (sv) * 1992-11-11 1994-05-12 Mo Och Domsjoe Ab Förfarande vid delignifiering och/eller blekning av cellulosamassa
FI925159A0 (fi) * 1992-11-13 1992-11-13 Ahlstroem Oy Foerfarande foer blekning av massa
ATE146833T1 (de) * 1992-11-27 1997-01-15 Eka Chemicals Ab Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff

Also Published As

Publication number Publication date
CZ282874B6 (cs) 1997-11-12
AU677373B2 (en) 1997-04-24
CN1124988A (zh) 1996-06-19
AU6987294A (en) 1995-01-03
CN1044504C (zh) 1999-08-04
DE69302020T2 (de) 1996-09-19
EP0677124A1 (en) 1995-10-18
ES2088701T3 (es) 1996-08-16
NO954464L (no) 1995-11-07
GR3020235T3 (en) 1996-09-30
WO1994029515A1 (en) 1994-12-22
BR9306842A (pt) 1998-12-08
SE9301960D0 (sv) 1993-06-08
DE69302020D1 (de) 1996-05-02
SE500616C2 (sv) 1994-07-25
FI950526L (sv) 1995-02-07
MA23215A1 (fr) 1994-12-31
ATE136073T1 (de) 1996-04-15
CA2163985A1 (en) 1994-12-22
JP2716104B2 (ja) 1998-02-18
NO954464D0 (no) 1995-11-07
ZA943504B (en) 1995-01-23
WO1994029511A1 (en) 1994-12-22
RU2120511C1 (ru) 1998-10-20
FI950526A7 (sv) 1995-02-07
US5571377A (en) 1996-11-05
JPH08500154A (ja) 1996-01-09
EP0677124B1 (en) 1996-03-27
CA2163985C (en) 2005-06-07
NZ259440A (en) 1996-08-27
FI950526A0 (sv) 1995-02-07
CZ302294A3 (en) 1995-09-13
AU5824894A (en) 1995-01-03

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