SE450257B - Forfarande vid ozonblekning av pappersmassa varvid massan utsettes for en sur retentionsbehandling - Google Patents

Forfarande vid ozonblekning av pappersmassa varvid massan utsettes for en sur retentionsbehandling

Info

Publication number
SE450257B
SE450257B SE8100373A SE8100373A SE450257B SE 450257 B SE450257 B SE 450257B SE 8100373 A SE8100373 A SE 8100373A SE 8100373 A SE8100373 A SE 8100373A SE 450257 B SE450257 B SE 450257B
Authority
SE
Sweden
Prior art keywords
pulp
treatment
bleaching
ozone
concentration
Prior art date
Application number
SE8100373A
Other languages
English (en)
Swedish (sv)
Other versions
SE8100373L (sv
Inventor
R P Singh
Original Assignee
Scott Paper Co
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 Scott Paper Co filed Critical Scott Paper Co
Publication of SE8100373L publication Critical patent/SE8100373L/
Publication of SE450257B publication Critical patent/SE450257B/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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3
    • 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)
SE8100373A 1980-01-24 1981-01-23 Forfarande vid ozonblekning av pappersmassa varvid massan utsettes for en sur retentionsbehandling SE450257B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/115,065 US4283251A (en) 1980-01-24 1980-01-24 Ozone effluent bleaching

Publications (2)

Publication Number Publication Date
SE8100373L SE8100373L (sv) 1981-07-25
SE450257B true SE450257B (sv) 1987-06-15

Family

ID=22359106

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100373A SE450257B (sv) 1980-01-24 1981-01-23 Forfarande vid ozonblekning av pappersmassa varvid massan utsettes for en sur retentionsbehandling

Country Status (6)

Country Link
US (1) US4283251A (fr)
BE (1) BE887023A (fr)
BR (1) BR8100206A (fr)
CA (1) CA1137257A (fr)
FI (1) FI810182L (fr)
SE (1) SE450257B (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451149B (sv) * 1983-01-26 1987-09-07 Mo Och Domsjoe Ab Apparatur for kontinuerlig behandling av vatteninnehallande lignocellulosamaterial med kveveoxid och syre
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
AT404740B (de) * 1989-10-30 1999-02-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von zellstoffen
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
DE4107354C1 (fr) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
DE69221385T2 (de) * 1991-05-24 1997-12-11 Union Camp Patent Holding, Inc., Wilmington, Del. Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon
US5625915A (en) * 1993-05-14 1997-05-06 Cyclo3Pss Textile Systems, Inc. Laundry ozone injection system
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent
US5728264A (en) * 1995-10-25 1998-03-17 Union Camp Patent Holding, Inc. Avoidance of salt scaling by acidic pulp washing process
US6006387A (en) * 1995-11-30 1999-12-28 Cyclo3Pss Textile Systems, Inc. Cold water ozone disinfection
US5763382A (en) * 1996-01-03 1998-06-09 Cyclo3Pss Textile Systems, Inc. Cold water wash formula
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
US6458398B1 (en) 1999-10-18 2002-10-01 Eco Pure Food Safety Systems, Inc. Cold water disinfection of foods
US20030131958A1 (en) * 2001-11-30 2003-07-17 Thomas Jaschinski Use of ozone for increasing the wet strength of paper and nonwoven
GB2382592A (en) * 2001-11-30 2003-06-04 Sca Hygiene Prod Gmbh Use of ozone to enhance the wet strength of fibrous cellulosic material
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466633A (en) * 1948-05-26 1949-04-05 James M Daily Method of bleaching cellulosic pulp
FR1441787A (fr) * 1965-04-30 1966-06-10 Progil Procédé de blanchiment des pâtes à papier
CA966604A (en) 1970-12-21 1975-04-29 Scott Paper Company Kraft pulp bleaching and recovery process
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp

Also Published As

Publication number Publication date
FI810182A7 (fi) 1981-07-25
BE887023A (fr) 1981-05-04
SE8100373L (sv) 1981-07-25
BR8100206A (pt) 1981-08-04
FI810182L (fi) 1981-07-25
US4283251A (en) 1981-08-11
CA1137257A (fr) 1982-12-14

Similar Documents

Publication Publication Date Title
SE450257B (sv) Forfarande vid ozonblekning av pappersmassa varvid massan utsettes for en sur retentionsbehandling
SE420430B (sv) Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
RU2040616C1 (ru) Способ отбелки целлюлозного штапельного волокна
EP0019963A1 (fr) Procédé pour la délignification et le blanchiment de pâtes cellulosiques chimiques et semi-chimiques
US5571378A (en) Process for high-pH metal ion chelation in pulps
JPH02293486A (ja) パルプ漂白法
CN101558197B (zh) 通过最终高温臭氧处理漂白化学纸浆的方法
JPH0860574A (ja) インク抜きをしたパルプにおいて蛍光を減少する方法
US6428653B1 (en) Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide
EP0464110B1 (fr) Procede de blanchiment servant a la production de pulpes tres claires
US2226356A (en) Process of purifying cellulosic material
USH1690H (en) Process for bleaching kraft pulp
SI9300044A (en) Process for lignin separation from a raw cellulose
WO2016159403A1 (fr) Procédé de blanchiment de pâte utilisant un composé de chélation
JPH0250237B2 (fr)
JP2006274478A (ja) 退色性が改善された製紙用化学パルプ
RU2097462C1 (ru) Способ делигнификации и отбеливания лигноцеллюлозосодержащей пульпы
US2001268A (en) Pulp treating process
CA2170553A1 (fr) Methode de traitement des filtrats dans un procede de blanchiment de la pate cellullosique au peroxyde
US3481827A (en) Process for bleaching wood pulp with fluorine,hydrofluoric acid,and oxygen difluoride
EP0279845A4 (en) Pulp bleaching process
EP0515362A1 (fr) Blanchiment de materiau lignocellulosique a l'aide de dioxiranes.
SU781243A1 (ru) Способ отбелки целлюлозы
US1787395A (en) Method for bleaching cellulose of any kind
US1858523A (en) Process of chemically treating and bleaching cellulose pulp

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8100373-3

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8100373-3

Format of ref document f/p: F