FI940412A0 - Selluloosamassojen happi/otsoni/peretikkahappodelignifiointi ja -valkaisu - Google Patents

Selluloosamassojen happi/otsoni/peretikkahappodelignifiointi ja -valkaisu

Info

Publication number
FI940412A0
FI940412A0 FI940412A FI940412A FI940412A0 FI 940412 A0 FI940412 A0 FI 940412A0 FI 940412 A FI940412 A FI 940412A FI 940412 A FI940412 A FI 940412A FI 940412 A0 FI940412 A0 FI 940412A0
Authority
FI
Finland
Prior art keywords
bleaching
ozone
oxygen
peracetic acid
cellulosic pulps
Prior art date
Application number
FI940412A
Other languages
English (en)
Swedish (sv)
Other versions
FI940412A (fi
FI116393B (fi
Inventor
Venketa R Parthasarathy
Glenn F Rudie
Original Assignee
Mead Corp
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
Application filed by Mead Corp filed Critical Mead Corp
Publication of FI940412A0 publication Critical patent/FI940412A0/fi
Publication of FI940412A publication Critical patent/FI940412A/fi
Application granted granted Critical
Publication of FI116393B publication Critical patent/FI116393B/fi

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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI940412A 1993-01-28 1994-01-27 Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi FI116393B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/010,533 US5387317A (en) 1993-01-28 1993-01-28 Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US1053393 1993-01-28

Publications (3)

Publication Number Publication Date
FI940412A0 true FI940412A0 (fi) 1994-01-27
FI940412A FI940412A (fi) 1994-07-29
FI116393B FI116393B (fi) 2005-11-15

Family

ID=21746197

Family Applications (1)

Application Number Title Priority Date Filing Date
FI940412A FI116393B (fi) 1993-01-28 1994-01-27 Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi

Country Status (4)

Country Link
US (1) US5387317A (fi)
CA (1) CA2111519C (fi)
FI (1) FI116393B (fi)
SE (1) SE514789C2 (fi)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI964715A (fi) * 1996-11-26 1998-05-27 Keskuslaboratorio Menetelmä selluloosamassan valkaisemiseksi
FR2836162B1 (fr) * 2002-02-18 2004-05-07 Air Liquide Procede de traitement de papiers uses par l'ozone
US20040112555A1 (en) * 2002-12-03 2004-06-17 Jeffrey Tolan Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof
US20100224336A1 (en) * 2005-12-14 2010-09-09 University Of Maine System Board Of Trustees Process of bleaching a wood pulp
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
FI123113B (fi) * 2008-09-10 2012-11-15 Upm Kymmene Corp Menetelmä mekaanisen massan valmistamiseksi ja mekaanisen massan käyttö
US8845860B2 (en) 2010-09-16 2014-09-30 Georgia-Pacific Consumer Products Lp High brightness pulps from lignin rich waste papers
US9551076B2 (en) 2011-05-31 2017-01-24 Clean Chemistry, Inc. Electrochemical reactor and process
ES2744788T3 (es) 2012-06-13 2020-02-26 Univ Maine System Proceso de eficiencia energética para preparar fibras de nanocelulosa
US20170107128A1 (en) 2012-09-07 2017-04-20 Clean Chemistry, Inc. System and method for generation of reactive oxygen species and applications thereof
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
WO2016037149A1 (en) 2014-09-04 2016-03-10 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
US10472265B2 (en) 2015-03-26 2019-11-12 Clean Chemistry, Inc. Systems and methods of reducing a bacteria population in high hydrogen sulfide water
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
WO2017100299A1 (en) 2015-12-07 2017-06-15 Clean Chemistry, Inc. Methods of pulp fiber treatment
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems
WO2021209586A1 (en) * 2020-04-16 2021-10-21 Bim Kemi Ab Delignification process
DE102020002445A1 (de) * 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
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
US4294654A (en) * 1980-03-21 1981-10-13 International Paper Company Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
DE3428352A1 (de) * 1984-08-01 1986-02-13 Degussa Ag, 6000 Frankfurt Verfahren zur delignifizierung und bleiche von zellstoffen
US4793898A (en) * 1985-02-22 1988-12-27 Oy Keskuslaboratorio - Centrallaboratorium Ab Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
ATE90404T1 (de) * 1988-01-25 1993-06-15 Acetocell Gmbh & Co Kg Verfahren zur behandlung von lignin enthaltender cellulosemasse mit ozon.
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
SE467260B (sv) * 1989-12-29 1992-06-22 Kamyr Ab Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg

Also Published As

Publication number Publication date
SE514789C2 (sv) 2001-04-23
SE9400277D0 (sv) 1994-01-28
CA2111519C (en) 2001-07-31
US5387317A (en) 1995-02-07
CA2111519A1 (en) 1994-07-29
FI940412A (fi) 1994-07-29
SE9400277L (sv) 1994-07-29
FI116393B (fi) 2005-11-15

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