SE9400277D0 - oxygen/ozon/perättiksyra-delignifiering och -blekning av cellulosamassor - Google Patents

oxygen/ozon/perättiksyra-delignifiering och -blekning av cellulosamassor

Info

Publication number
SE9400277D0
SE9400277D0 SE9400277A SE9400277A SE9400277D0 SE 9400277 D0 SE9400277 D0 SE 9400277D0 SE 9400277 A SE9400277 A SE 9400277A SE 9400277 A SE9400277 A SE 9400277A SE 9400277 D0 SE9400277 D0 SE 9400277D0
Authority
SE
Sweden
Prior art keywords
ozone
oxygen
bleaching
peracetic acid
cellulose pulp
Prior art date
Application number
SE9400277A
Other languages
English (en)
Other versions
SE514789C2 (sv
SE9400277L (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 SE9400277D0 publication Critical patent/SE9400277D0/sv
Publication of SE9400277L publication Critical patent/SE9400277L/sv
Publication of SE514789C2 publication Critical patent/SE514789C2/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE9400277A 1993-01-28 1994-01-28 Delignifiering och blekning av cellulosamassor med perättiksyra, ozon och syre SE514789C2 (sv)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
SE9400277D0 true SE9400277D0 (sv) 1994-01-28
SE9400277L SE9400277L (sv) 1994-07-29
SE514789C2 SE514789C2 (sv) 2001-04-23

Family

ID=21746197

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9400277A SE514789C2 (sv) 1993-01-28 1994-01-28 Delignifiering och blekning av cellulosamassor med perättiksyra, ozon och syre

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
WO2012166997A2 (en) 2011-05-31 2012-12-06 Clean Chemistry, Llc Electrochemical reactor and process
PT2861799T (pt) 2012-06-13 2019-09-26 Univ Maine System Processo energeticamente eficiente para preparar fibras de nanocelulose
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
EP3189016B1 (en) 2014-09-04 2020-06-03 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
WO2016154531A1 (en) 2015-03-26 2016-09-29 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
CA3007780C (en) 2015-12-07 2023-12-19 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
FI116393B (sv) 2005-11-15
FI940412A (sv) 1994-07-29
US5387317A (en) 1995-02-07
SE514789C2 (sv) 2001-04-23
SE9400277L (sv) 1994-07-29
FI940412A0 (sv) 1994-01-27
CA2111519C (en) 2001-07-31
CA2111519A1 (en) 1994-07-29

Similar Documents

Publication Publication Date Title
SE9400277D0 (sv) oxygen/ozon/perättiksyra-delignifiering och -blekning av cellulosamassor
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
DK0496671T3 (da) Enzymatisk behandling af en kemisk lignincellulosemasse
SE8003407L (sv) Forfarande vid syrgasblekning av cellulosamassa
ATE21133T1 (de) Verfahren zur herstellung von halbgebleichten zellstoffen.
BR9307066A (pt) Método de produção de uma solução oxidante de perácido misto e métodos para tratamento de substratos com a mesma
NO176810C (no) Fremgangsmåte ved delignifisering av lignocellulosefibre
YU23892A (sh) Postupak za beljenje hemijske kaše hartije i primena ovog postupka za beljenje kraft kaše
DE69528660D1 (de) Bleichen von papierzellstoff
SE9702583L (sv) Förfarande för massaframställning
SE9301984L (sv) Klorfri blekning av kemisk pappersmassa
SE9604094L (sv) Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
SE9700884D0 (sv) Förfarande för blekning av massa
SE9502365D0 (sv) Blekning av lignocellulosahaltigt fibermaterial
SE9604217D0 (sv) Method and apparatus for delignifying chemical pu lp
SE0101828D0 (sv) Method and apparatus for treating pulp
SE9403174D0 (sv) A Method for the enzymatic treatment of chemical pulp before bleaching
DE59704964D1 (de) Verfahren zur Herstellung von gebleichten Spezialzellstoffen
NO920829D0 (no) Fremgangsmaate for bleking av cellulose i alifatiske monokarboksylsyrer
TW324758B (en) Manufacturing method for cellulose fiber
FI905380A (fi) Foerfarande foer behandling av alkaliloesning.

Legal Events

Date Code Title Description
NUG Patent has lapsed