ID19277A - Metoda pemutihan bubur-kayu - Google Patents

Metoda pemutihan bubur-kayu

Info

Publication number
ID19277A
ID19277A IDP973775A ID973775A ID19277A ID 19277 A ID19277 A ID 19277A ID P973775 A IDP973775 A ID P973775A ID 973775 A ID973775 A ID 973775A ID 19277 A ID19277 A ID 19277A
Authority
ID
Indonesia
Prior art keywords
oxygen delignification
delignification step
chemicals
kappa number
pulp
Prior art date
Application number
IDP973775A
Other languages
English (en)
Indonesian (id)
Inventor
Monica Bokstrom
Jan-Erik Haggqvist
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=ID19277(A) "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
Publication of ID19277A publication Critical patent/ID19277A/id

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)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
IDP973775A 1996-11-26 1997-11-26 Metoda pemutihan bubur-kayu ID19277A (id)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ID19277A true ID19277A (id) 1998-06-28

Family

ID=20404765

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP973775A ID19277A (id) 1996-11-26 1997-11-26 Metoda pemutihan bubur-kayu

Country Status (17)

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

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
SE510740C2 (sv) 1999-06-21
EP0941381B1 (en) 2007-04-11
CN1103833C (zh) 2003-03-26
CN1238817A (zh) 1999-12-15
ES2281110T3 (es) 2007-09-16
DE69737603D1 (de) 2007-05-24
US6238517B1 (en) 2001-05-29
NO992491L (no) 1999-05-25
SE9604350D0 (sv) 1996-11-26
JP4535515B2 (ja) 2010-09-01
CA2270598C (en) 2005-05-03
PT941381E (pt) 2007-04-30
JP2001504558A (ja) 2001-04-03
DE69737603T2 (de) 2007-07-26
AU723369B2 (en) 2000-08-24
NO992491D0 (no) 1999-05-25
NZ335724A (en) 1999-09-29
AU5141398A (en) 1998-06-22
WO1998023810A1 (en) 1998-06-04
ATE359392T1 (de) 2007-05-15
NO325724B1 (no) 2008-07-07
SE9604350L (sv) 1998-05-27
CA2270598A1 (en) 1998-06-04
BR9713143A (pt) 2000-02-08
ZA9710422B (en) 1998-06-10
EP0941381A1 (en) 1999-09-15

Similar Documents

Publication Publication Date Title
FI935067A7 (fi) Menetelmä lignoselluloosapitoisen materiaalin delignifioimiseksi tai v alkaisemiseksi ja jätevesien käsittelemiseksi lakkaasientsyymien avull a, joilla on parantunut vaikutus
DE3574486D1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
FI941764A7 (fi) Menetelmä lignoselluloosapitoisen massan valkaisemiseksi
SE0002789D0 (sv) Method and device for measuring bleach requirement, bleachability, and effectivness of hemicellulase treatment of pulp
DE69630803D1 (de) Sauerstoffdelignifizierung von lignocelluloschischem zellstoff in zwei stufen
ID19277A (id) Metoda pemutihan bubur-kayu
FI944348L (fi) Menetelmä kraft-massan valkaisemiseksi
FI965216L (fi) Menetelmä korkean sakeuden omaavan lignoselluloosamassan valkaisemiseksi
SE9402885L (sv) Blekning av massa
SE9503694D0 (sv) Blekning av massa
FI960972A7 (fi) Menetelmä lignoselluloosasulpun valkaisemiseksi
SE9401628D0 (sv) Förfarande vid syrgasdelignifiering
FI974284L (fi) Selluloosamassan valkaisumenetelmä
SE9501623L (sv) Blekning av massa
CA2374353A1 (en) System for the oxygen delignification of pulp consisting of lignocellulose-containing material
FI853492A0 (fi) Foerfarande foer delignifiering av sulfatcelluloser.
ATE207153T1 (de) Verfahren zur herstellung von gebleichten spezialzellstoffen
SE9500926D0 (sv) Förfarande för blekning av massa
SE9604217D0 (sv) Method and apparatus for delignifying chemical pu lp
FI970106A7 (fi) Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen
FI895351A7 (fi) Menetelmä happea kuluttavan määrän sekä värin vähentämiseksi jätevedessä, joka on peräisin paperinvalmistukseen tarkoitetun selluloosan tuotannosta
FI955879L (fi) Menetelmä kraft-massan valkaisemiseksi
FI971023A7 (fi) Menetelmä kraft-massan valkaisemiseksi