FI940412A - Syre/ozon/perättiksyradelignifiering och -blekning av cellulosamassor - Google Patents

Syre/ozon/perättiksyradelignifiering och -blekning av cellulosamassor Download PDF

Info

Publication number
FI940412A
FI940412A FI940412A FI940412A FI940412A FI 940412 A FI940412 A FI 940412A FI 940412 A FI940412 A FI 940412A FI 940412 A FI940412 A FI 940412A FI 940412 A FI940412 A FI 940412A
Authority
FI
Finland
Prior art keywords
bleaching
ozone
oxygen
peracetic acid
cellulose pulp
Prior art date
Application number
FI940412A
Other languages
English (en)
Finnish (fi)
Other versions
FI116393B (sv
FI940412A0 (sv
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/sv
Publication of FI940412A publication Critical patent/FI940412A/sv
Application granted granted Critical
Publication of FI116393B publication Critical patent/FI116393B/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
    • D21C9/147—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
FI940412A 1993-01-28 1994-01-27 Förfarande för delignifiering och blekning av cellulosamassa FI116393B (sv)

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 FI940412A0 (sv) 1994-01-27
FI940412A true FI940412A (sv) 1994-07-29
FI116393B FI116393B (sv) 2005-11-15

Family

ID=21746197

Family Applications (1)

Application Number Title Priority Date Filing Date
FI940412A FI116393B (sv) 1993-01-28 1994-01-27 Förfarande för delignifiering och blekning av cellulosamassa

Country Status (4)

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

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI964715A (sv) * 1996-11-26 1998-05-27 Keskuslaboratorio Förfarande för blekning av cellulosamassa
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 (sv) * 2008-09-10 2012-11-15 Upm Kymmene Corp Förfarande för tillverkling av mekanisk massa och användning av mekanisk massa
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
CA2876082C (en) 2012-06-13 2021-06-01 University Of Maine System Board Of Trustees Energy efficient process for preparing nanocellulose fibers
AU2013312249B2 (en) 2012-09-07 2018-03-15 Clean Chemistry, Inc. Systems and methods 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
EP3189016B1 (en) 2014-09-04 2020-06-03 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
WO2017100284A1 (en) 2015-12-07 2017-06-15 Clean Chemistry, Inc. Methods of microbial control
US10883224B2 (en) 2015-12-07 2021-01-05 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
EP0325890B1 (de) * 1988-01-25 1993-06-09 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
CA2111519A1 (en) 1994-07-29
SE9400277L (sv) 1994-07-29
FI116393B (sv) 2005-11-15
CA2111519C (en) 2001-07-31
FI940412A0 (sv) 1994-01-27
US5387317A (en) 1995-02-07
SE9400277D0 (sv) 1994-01-28

Similar Documents

Publication Publication Date Title
FI940412A (sv) Syre/ozon/perättiksyradelignifiering och -blekning av cellulosamassor
NO20011387L (no) Oksygenbleking av tremasse ved bruk av agglomerert blekeaktiveringsmiddel
NO964609L (no) Fremgangsmåte for fremstilling av delignifisert og bleket kjemisk papirmasse
NO944696D0 (no) Bleking av resirkulert papirmasse med ozon og hydrogenperoksid
AU3602295A (en) Process for delignification and bleaching of chemical wood pulps
NO177606C (no) Fremgangsmåte for hydrogenperoksydbleking av papirmasse
ZA931096B (en) Modified digestion of paper pulp followed by ozone bleaching
NO971407L (no) Fremgangsmåte for delignifisering og bleking av kjemiske papirmasser
NO20005046D0 (no) Behandling av filtrater fra peroksidbleking av tremasse
NO934406L (no) Fremgangsmaate for bleking og delignifisering av kjemisk papirmasse
NO953440D0 (no) Fremgangsmåte for delignifisering av kjemisk papirmasse
AU5056198A (en) Bleaching of cellulosic pulp with ozone and peracid
FI960973A0 (sv) Medelkonsistensvitgöring med ozon av en med ozon blekt högkonsistensmassa
AU2202188A (en) Method of bleaching or delignification of cellulose pulp with oxygen
FI945202A (sv) Blekning av kemisk massa
NO954285D0 (no) Fremgangsmåte for flertrinnsbleking av tremasse
AU6325596A (en) Bleaching of lignocellulosic pulp with ozone and peracid
FI971401A (sv) Behandling av kemisk massa med ett kelateringsmedel och ett oxidationsmedel i samband med blekningen
ZA952751B (en) Pre-treatment of sulfite pulp before bleaching with oxygen containing chemicals
SE9303037D0 (sv) Blekning av pappersmassa
DE59812386D1 (de) Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben
NO303074B1 (no) FremgangsmÕte ved ozonbleking av masse
SE9302483L (sv) Blekning av massa
SE9303971L (sv) Blekning av massa
ZA886592B (en) Method of bleaching or delignification of cellulose pulp with oxygen

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 116393

Country of ref document: FI

MA Patent expired