NO994554D0 - Bleking og delignifisering av cellulose ved caroat/carosyre og fremstilling av samme - Google Patents

Bleking og delignifisering av cellulose ved caroat/carosyre og fremstilling av samme

Info

Publication number
NO994554D0
NO994554D0 NO994554A NO994554A NO994554D0 NO 994554 D0 NO994554 D0 NO 994554D0 NO 994554 A NO994554 A NO 994554A NO 994554 A NO994554 A NO 994554A NO 994554 D0 NO994554 D0 NO 994554D0
Authority
NO
Norway
Prior art keywords
bleaching
solution
caroate
cellulose
delignification
Prior art date
Application number
NO994554A
Other languages
English (en)
Norwegian (no)
Other versions
NO994554L (no
Inventor
Maximilian Dorn
Michael Gnann
Sven Gutewort
Werner Sebb
Original Assignee
Peroxid Chemie Gmbh
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 DE19803001A external-priority patent/DE19803001A1/de
Application filed by Peroxid Chemie Gmbh filed Critical Peroxid Chemie Gmbh
Publication of NO994554L publication Critical patent/NO994554L/no
Publication of NO994554D0 publication Critical patent/NO994554D0/no

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
    • D21C9/16—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)
  • Detergent Compositions (AREA)
NO994554A 1997-03-21 1999-09-20 Bleking og delignifisering av cellulose ved caroat/carosyre og fremstilling av samme NO994554D0 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711929 1997-03-21
DE19803001A DE19803001A1 (de) 1997-03-21 1998-01-27 Bleichen und Delignifizierung von Zellstoff durch Caroate/Carosche Säure und Herstellung derselben aus Persulfaten/Perschwefelsäure, die elektrochemisch hergestellt wird
PCT/EP1998/001622 WO1998042911A1 (de) 1997-03-21 1998-03-19 Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben

Publications (2)

Publication Number Publication Date
NO994554L NO994554L (no) 1999-09-20
NO994554D0 true NO994554D0 (no) 1999-09-20

Family

ID=26035106

Family Applications (1)

Application Number Title Priority Date Filing Date
NO994554A NO994554D0 (no) 1997-03-21 1999-09-20 Bleking og delignifisering av cellulose ved caroat/carosyre og fremstilling av samme

Country Status (6)

Country Link
EP (1) EP0968328B1 (de)
JP (1) JP2001518153A (de)
AT (1) ATE284994T1 (de)
CA (1) CA2284520A1 (de)
NO (1) NO994554D0 (de)
WO (1) WO1998042911A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4956991B2 (ja) * 2005-12-22 2012-06-20 三菱瓦斯化学株式会社 化学パルプの製造方法
JP4967451B2 (ja) 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 漂白パルプの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049786A (en) * 1976-09-13 1977-09-20 Fmc Corporation Process of preparing peroxymonosulfate
US4144144A (en) * 1976-12-23 1979-03-13 Fmc Corporation Electrolytic production of sodium persulfate
US4756800A (en) * 1986-09-03 1988-07-12 The United States Of America As Represented By The Secretary Of Agriculture Method for producing salts of monoperoxysulfuric acid and simultaneously bleaching pulp
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
BR9205620A (pt) * 1991-02-12 1994-05-03 Pulp Paper Res Inst Polpa quimica, e, processo de branqueamento de polpa quimica.
CA2080026A1 (en) * 1992-09-09 1994-03-10 Alfred Wong Novel method of bleaching of lignocelulosic pulp using persulphate

Also Published As

Publication number Publication date
EP0968328A1 (de) 2000-01-05
WO1998042911A1 (de) 1998-10-01
ATE284994T1 (de) 2005-01-15
CA2284520A1 (en) 1998-10-01
JP2001518153A (ja) 2001-10-09
NO994554L (no) 1999-09-20
EP0968328B1 (de) 2004-12-15

Similar Documents

Publication Publication Date Title
BR9803764A (pt) Método de branquear polpa contendo lignina durante a fabricação
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
ID21642A (id) Metode pemproduksian pulp yang menggunakan pemasakan tahap tunggal dengan asam format dan pencucian dengan asam performat
CA2211223A1 (en) Method of pretreating pulp to be bleached with peroxide
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
SE9503720D0 (sv) Blekning av massa
SE9400277D0 (sv) oxygen/ozon/perättiksyra-delignifiering och -blekning av cellulosamassor
NO953712L (no) Forbedret ozon/persyre-prosess for delignifisering av et lignocelluloseholdig materiale
NO994554D0 (no) Bleking og delignifisering av cellulose ved caroat/carosyre og fremstilling av samme
NO176810C (no) Fremgangsmåte ved delignifisering av lignocellulosefibre
SE9203122L (sv) Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen
CA2094819A1 (en) Pulping process
NO951190L (no) Forbedret bleking av höykonsistens-lignocellulosemasse
SE9700884L (sv) Blekning med klordioxid i ett trefassteg
SE9502365L (sv) Blekning av lignocellulosahaltigt fibermaterial
SE9402726D0 (sv) Sätt vid massablekning
NO864319L (no) Fremgangsmaate for bleking av kjemisk papirmasse.
SE8703541D0 (sv) Pappersmassakokning enligt sulfatmetoden i kombination med alkalisk oxygendelignifiering och atfoljande slutblekning
SE9303551L (sv) Sätt att behandla kemisk pappersmassa utan användning av klorhaltiga kemikalier
SE9704298D0 (sv) Förfarande vid blekning av cellulosa i ett slutet system under användning av Caro´s syra
SE9500927D0 (sv) Method of tcf or ecf bleaching of cellulose pulp
SE9400738L (sv) Förfarande vid ozonblekning av sulfitmassa
SE9500573D0 (sv) Bleaching pulp with peroxide at superatmospheric pressure and in multiple stages
SE9503764L (sv) Sätt vid massablekning

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application