ID18754A - Pemutihan bubur kertas - Google Patents

Pemutihan bubur kertas

Info

Publication number
ID18754A
ID18754A IDP970983A ID970983A ID18754A ID 18754 A ID18754 A ID 18754A ID P970983 A IDP970983 A ID P970983A ID 970983 A ID970983 A ID 970983A ID 18754 A ID18754 A ID 18754A
Authority
ID
Indonesia
Prior art keywords
bleaching
paper
paper bleaching
bleaching bleaching
Prior art date
Application number
IDP970983A
Other languages
English (en)
Inventor
Monica Bokstrom
Rune Larsson
Kjell Forslund
Matts Sundin
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
Priority claimed from SE9601160A external-priority patent/SE507871C2/sv
Priority claimed from SE9602686A external-priority patent/SE507870C2/sv
Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Publication of ID18754A publication Critical patent/ID18754A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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)
IDP970983A 1996-03-26 1997-03-25 Pemutihan bubur kertas ID18754A (id)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9601160A SE507871C2 (sv) 1996-03-26 1996-03-26 Syrgasdelignifiering av kemisk massa i två steg
SE9602686A SE507870C2 (sv) 1996-07-05 1996-07-05 Syrgasdelignifiering av kemisk massa i två steg

Publications (1)

Publication Number Publication Date
ID18754A true ID18754A (id) 1998-05-07

Family

ID=26662556

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP970983A ID18754A (id) 1996-03-26 1997-03-25 Pemutihan bubur kertas

Country Status (7)

Country Link
US (1) US6221207B1 (id)
EP (1) EP0891439A1 (id)
JP (1) JP2000507317A (id)
AU (1) AU2312797A (id)
BR (1) BR9708265A (id)
ID (1) ID18754A (id)
WO (1) WO1997036042A1 (id)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751173A1 (de) * 1997-11-19 1999-05-27 Voith Sulzer Papiertech Patent Verfahren zur Erhöhung des Weißgrades von Papierfaserstoff
SE9803474L (sv) * 1998-10-08 2000-04-09 Valmet Fibertech Ab Syrgasblekning av massa
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
AU2003209591A1 (en) * 2002-02-22 2003-09-09 Gilles Gervais Process of treating lignocellulosic material to produce bio-ethanol
JP4595285B2 (ja) * 2003-02-28 2010-12-08 日本製紙株式会社 未晒クラフトパルプ処理方法および高白色度漂白パルプ製造方法
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US7497392B2 (en) * 2006-07-17 2009-03-03 Alliance Technology Group, Inc. Process and apparatus for transforming waste materials into fuel
SE540043C2 (en) * 2015-11-27 2018-03-06 Valmet Oy Method and system for oxygen delignification of cellulose pulp

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE333299B (sv) * 1967-11-10 1971-03-08 Sunds Ab Foerfarande vid och anordning foer blekning av foeretraedesvis cellulosamassa med gasformigt blekmedel
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
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
SE379069B (id) * 1973-08-27 1975-09-22 Kamyr Ab
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US5217575A (en) * 1988-10-18 1993-06-08 Kamyr Ab Process for oxygen bleaching using two vertical reactors
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
US5690786A (en) * 1991-11-26 1997-11-25 Air Products And Chemicals Inc. Process for the treatment of pulp with oxygen and steam using ejectors
US5306391A (en) * 1992-06-16 1994-04-26 Air Products And Chemicals, Inc. Control of chemical dosage to a pulp slurry
US6340409B1 (en) * 1993-04-29 2002-01-22 Lewis Donald Shackford Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
FI98224B (fi) 1993-09-15 1997-01-31 Ahlstrom Machinery Oy Menetelmä massan valkaisemiseksi

Also Published As

Publication number Publication date
JP2000507317A (ja) 2000-06-13
AU2312797A (en) 1997-10-17
BR9708265A (pt) 1999-04-13
WO1997036042A1 (en) 1997-10-02
US6221207B1 (en) 2001-04-24
EP0891439A1 (en) 1999-01-20

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