SE510740C2 - Styrning av syrgasdelignifiering - Google Patents

Styrning av syrgasdelignifiering

Info

Publication number
SE510740C2
SE510740C2 SE9604350A SE9604350A SE510740C2 SE 510740 C2 SE510740 C2 SE 510740C2 SE 9604350 A SE9604350 A SE 9604350A SE 9604350 A SE9604350 A SE 9604350A SE 510740 C2 SE510740 C2 SE 510740C2
Authority
SE
Sweden
Prior art keywords
delignification
oxygen delignification
pulp
kappa number
control
Prior art date
Application number
SE9604350A
Other languages
English (en)
Swedish (sv)
Other versions
SE9604350D0 (sv
SE9604350L (sv
Inventor
Monica Bokstroem
Jan-Erik Haeggqvist
Original Assignee
Sunds Defibrator Ind 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=20404765&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE510740(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Priority to SE9604350A priority Critical patent/SE510740C2/sv
Publication of SE9604350D0 publication Critical patent/SE9604350D0/xx
Priority to ES97946194T priority patent/ES2281110T3/es
Priority to PCT/SE1997/001852 priority patent/WO1998023810A1/en
Priority to CN97180013A priority patent/CN1103833C/zh
Priority to US09/308,820 priority patent/US6238517B1/en
Priority to AU51413/98A priority patent/AU723369B2/en
Priority to BR9713143-1A priority patent/BR9713143A/pt
Priority to AT97946194T priority patent/ATE359392T1/de
Priority to NZ335724A priority patent/NZ335724A/en
Priority to DE69737603T priority patent/DE69737603T2/de
Priority to JP52459098A priority patent/JP4535515B2/ja
Priority to PT97946194T priority patent/PT941381E/pt
Priority to EP97946194A priority patent/EP0941381B1/de
Priority to CA002270598A priority patent/CA2270598C/en
Priority to ZA9710422A priority patent/ZA9710422B/xx
Priority to IDP973775A priority patent/ID19277A/id
Publication of SE9604350L publication Critical patent/SE9604350L/
Priority to NO19992491A priority patent/NO325724B1/no
Publication of SE510740C2 publication Critical patent/SE510740C2/sv

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1052—Controlling the 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
SE9604350A 1996-11-26 1996-11-26 Styrning av syrgasdelignifiering SE510740C2 (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE9604350A SE510740C2 (sv) 1996-11-26 1996-11-26 Styrning av syrgasdelignifiering
EP97946194A EP0941381B1 (de) 1996-11-26 1997-11-06 Verfahren zur kontrolle der sauerstoffdelignifizierung von zellstoff
CA002270598A CA2270598C (en) 1996-11-26 1997-11-06 Method for controlling oxygen delignification of pulp
AT97946194T ATE359392T1 (de) 1996-11-26 1997-11-06 Verfahren zur kontrolle der sauerstoffdelignifizierung von zellstoff
JP52459098A JP4535515B2 (ja) 1996-11-26 1997-11-06 パルプの酸素脱リグニンのコントロール方法
CN97180013A CN1103833C (zh) 1996-11-26 1997-11-06 控制纸浆的氧去木质作用的方法
US09/308,820 US6238517B1 (en) 1996-11-26 1997-11-06 Method for controlling oxygen delignification of pulp
AU51413/98A AU723369B2 (en) 1996-11-26 1997-11-06 Method for controlling oxygen delignification of pulp
BR9713143-1A BR9713143A (pt) 1996-11-26 1997-11-06 Processo para controlar deslignificação de polpa com oxigênio.
ES97946194T ES2281110T3 (es) 1996-11-26 1997-11-06 Metodo para controlar la deslignificacion con oxigeno de pulpa.
NZ335724A NZ335724A (en) 1996-11-26 1997-11-06 Method for controlling oxygen delignification of pulp in two stages
DE69737603T DE69737603T2 (de) 1996-11-26 1997-11-06 Verfahren zur kontrolle der sauerstoffdelignifizierung von zellstoff
PCT/SE1997/001852 WO1998023810A1 (en) 1996-11-26 1997-11-06 Method for controlling oxygen delignification of pulp
PT97946194T PT941381E (pt) 1996-11-26 1997-11-06 Processo para controlo da deslenhificação de pasta de papel por oxigénio
ZA9710422A ZA9710422B (en) 1996-11-26 1997-11-19 Bleaching of pulp.
IDP973775A ID19277A (id) 1996-11-26 1997-11-26 Metoda pemutihan bubur-kayu
NO19992491A NO325724B1 (no) 1996-11-26 1999-05-25 Fremgangsmate for regulering av oksygen delignifisering av masse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604350A SE510740C2 (sv) 1996-11-26 1996-11-26 Styrning av syrgasdelignifiering

Publications (3)

Publication Number Publication Date
SE9604350D0 SE9604350D0 (sv) 1996-11-26
SE9604350L SE9604350L (sv) 1998-05-27
SE510740C2 true SE510740C2 (sv) 1999-06-21

Family

ID=20404765

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604350A SE510740C2 (sv) 1996-11-26 1996-11-26 Styrning av syrgasdelignifiering

Country Status (17)

Country Link
US (1) US6238517B1 (de)
EP (1) EP0941381B1 (de)
JP (1) JP4535515B2 (de)
CN (1) CN1103833C (de)
AT (1) ATE359392T1 (de)
AU (1) AU723369B2 (de)
BR (1) BR9713143A (de)
CA (1) CA2270598C (de)
DE (1) DE69737603T2 (de)
ES (1) ES2281110T3 (de)
ID (1) ID19277A (de)
NO (1) NO325724B1 (de)
NZ (1) NZ335724A (de)
PT (1) PT941381E (de)
SE (1) SE510740C2 (de)
WO (1) WO1998023810A1 (de)
ZA (1) ZA9710422B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
SE514825C2 (sv) 1999-09-16 2001-04-30 Aga Ab Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
SE526000C2 (sv) * 2003-11-26 2005-06-14 Kvaerner Pulping Tech Metod och system för att styra tillsättning av syrgas och alkali vid syrgasdelignifiering
SE0403202L (sv) * 2004-12-30 2005-10-25 Kvaerner Pulping Tech Metod för syrgasdelignifiering av cellulosamassa med inmixning av kemikalier vid högt tryck

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE373395B (sv) * 1972-12-19 1975-02-03 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa med hog ljushet genom uppslutning av ved med syrgas under tryck i nervaro av en kokvetska forsatt med basiska neutralisationsmedel
FI50745C (fi) * 1974-06-14 1976-06-10 Kaukas Ab Oy Menetelmä kahden kemikaalin annostuksen automaattiseksi säätämiseksi.
SE421019B (sv) * 1980-08-26 1981-11-16 Kamyr Ab Forfarande for kemikaliereglering vid behandling av en substans, speciellt massa, med gas
JPS5789690A (en) * 1980-11-21 1982-06-04 Toyo Pulp Co Ltd Alkali oxygen delignification of fiber substance
FI71178C (fi) * 1984-11-08 1988-05-18 Rauma Repola Oy Foerfarande foer reglering av syreblekningsprocess.
JPH0672386B2 (ja) * 1988-04-26 1994-09-14 新王子製紙株式会社 セルロースパルプの酸素による脱リグニン、漂白方法
SE467582B (sv) * 1988-10-18 1992-08-10 Kamyr Ab Saett vid oxygenblekning
US5217575A (en) * 1988-10-18 1993-06-08 Kamyr Ab Process for oxygen bleaching using two vertical reactors
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
JPH04272289A (ja) * 1991-02-21 1992-09-29 Mitsubishi Paper Mills Ltd セルロースパルプの酸素漂白法
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
SE505141C2 (sv) * 1995-10-23 1997-06-30 Sunds Defibrator Ind Ab Syrgasdelignifiering av massa i två steg med hög satsning av alkali och syrgas och temperatur under 90 C i första steget

Also Published As

Publication number Publication date
ID19277A (id) 1998-06-28
SE9604350D0 (sv) 1996-11-26
EP0941381B1 (de) 2007-04-11
EP0941381A1 (de) 1999-09-15
JP2001504558A (ja) 2001-04-03
DE69737603D1 (de) 2007-05-24
AU723369B2 (en) 2000-08-24
NO992491L (no) 1999-05-25
CA2270598C (en) 2005-05-03
CA2270598A1 (en) 1998-06-04
BR9713143A (pt) 2000-02-08
ZA9710422B (en) 1998-06-10
NO992491D0 (no) 1999-05-25
DE69737603T2 (de) 2007-07-26
CN1238817A (zh) 1999-12-15
NO325724B1 (no) 2008-07-07
ATE359392T1 (de) 2007-05-15
SE9604350L (sv) 1998-05-27
JP4535515B2 (ja) 2010-09-01
NZ335724A (en) 1999-09-29
US6238517B1 (en) 2001-05-29
PT941381E (pt) 2007-04-30
ES2281110T3 (es) 2007-09-16
AU5141398A (en) 1998-06-22
WO1998023810A1 (en) 1998-06-04
CN1103833C (zh) 2003-03-26

Similar Documents

Publication Publication Date Title
SE462919B (sv) Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
EP0857231B1 (de) Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen
SE514789C2 (sv) Delignifiering och blekning av cellulosamassor med perättiksyra, ozon och syre
JPH0390691A (ja) セルロースパルプの脱リグニン処理装置および方法
SE510740C2 (sv) Styrning av syrgasdelignifiering
CA2127654C (en) Oxygen delignification method incorporating wood pulp mixing apparatus
US6319357B1 (en) Method for two-stage oxygen bleaching and delignification of chemical pulp
SE514825C2 (sv) Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
EP0547100B1 (de) Herstellungsverfahren von lignozellulosischem zellstoff und vorrichtung zur durchführung des verfahrens
US2789051A (en) Method for continuous cooking of chips in the manufacture of pulp
US20060118260A1 (en) Bleaching of cellulose pulp in a first chlorine dioxide bleaching step
SE522593C2 (sv) System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
CA2186204A1 (en) Bleaching of pulp
CN118234700A (zh) 改进的空气汽提方法和设备
SE526162C2 (sv) Tillverkning av färdigblekt lövvedsmassa i ett klordioxidsteg följt av ett trycksatt peroxidsteg
US20030131956A1 (en) Continuous pulping processes and systems
SE519574C2 (sv) Förfarande för avkylning av massa med en värmeväxlare i samband med kokning
SE504078C2 (sv) Förfarande och apparatsystem för behandling av cellulosamassa med syra för sänkande av dess kappatal
KR950005862A (ko) 퍼지 및 학습제어에 의한 그래프트 에이비에스 제조방법
SE507870C2 (sv) Syrgasdelignifiering av kemisk massa i två steg

Legal Events

Date Code Title Description
NUG Patent has lapsed