SE7904148L - Sett vid blekning av lignocellulosahaltigt material - Google Patents

Sett vid blekning av lignocellulosahaltigt material

Info

Publication number
SE7904148L
SE7904148L SE7904148A SE7904148A SE7904148L SE 7904148 L SE7904148 L SE 7904148L SE 7904148 A SE7904148 A SE 7904148A SE 7904148 A SE7904148 A SE 7904148A SE 7904148 L SE7904148 L SE 7904148L
Authority
SE
Sweden
Prior art keywords
cellulose
gas
lignocellulosally
whiting
fiber material
Prior art date
Application number
SE7904148A
Other languages
Unknown language ( )
English (en)
Other versions
SE462919B (sv
Inventor
G E Annergren
A Hegglund
P-O Lindblad
L-A Lindstrom
L E Nesman
Original Assignee
Sca Development Ab
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 Sca Development Ab filed Critical Sca Development Ab
Priority to SE7904148A priority Critical patent/SE462919B/sv
Priority to JP4794380A priority patent/JPS55151001A/ja
Priority to FI801254A priority patent/FI73750B/fi
Priority to CA000351280A priority patent/CA1150011A/en
Priority to BR8002768A priority patent/BR8002768A/pt
Priority to DE3017712A priority patent/DE3017712C2/de
Priority to FR8010378A priority patent/FR2456159A1/fr
Priority to NO801386A priority patent/NO159541B/no
Publication of SE7904148L publication Critical patent/SE7904148L/sv
Priority to US06/403,070 priority patent/US4451332A/en
Priority to CA000542455A priority patent/CA1235257B/en
Publication of SE462919B publication Critical patent/SE462919B/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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
SE7904148A 1979-05-11 1979-05-11 Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre SE462919B (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE7904148A SE462919B (sv) 1979-05-11 1979-05-11 Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
JP4794380A JPS55151001A (en) 1979-05-11 1980-04-11 Delignification of lignocellulose contained raw material
FI801254A FI73750B (fi) 1979-05-11 1980-04-18 Saett vid blekning av lignocellulosahaltigt material.
CA000351280A CA1150011A (en) 1979-05-11 1980-05-05 Method at bleaching ligno-cellulose containing material
BR8002768A BR8002768A (pt) 1979-05-11 1980-05-06 Processo de efetuar deslignificacao de material em fibra contendo ligno-celulose, na extracao alcalina
DE3017712A DE3017712C2 (de) 1979-05-11 1980-05-08 Verfahren zur alkalischen Extraktion von Fasermaterial enthaltenden Cellulosesuspensionen nach Behandlung mit Chlor oder Chlordioxid oder Mischungen davon
FR8010378A FR2456159A1 (fr) 1979-05-11 1980-05-09 Procede pour le blanchiement au moyen d'oxygene de matieres contenant de la ligno-cellulose
NO801386A NO159541B (no) 1979-05-11 1980-05-09 Fremgangsmaate til aa utfoere alkaliestraksjon av cellulosemasse.
US06/403,070 US4451332A (en) 1979-05-11 1982-07-29 Method for delignification of ligno-cellulose containing fiber material with an alkali-oxygen extraction stage
CA000542455A CA1235257B (en) 1979-05-11 1987-07-17 Method at bleaching ligno-cellulose containing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7904148A SE462919B (sv) 1979-05-11 1979-05-11 Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre

Publications (2)

Publication Number Publication Date
SE7904148L true SE7904148L (sv) 1980-11-12
SE462919B SE462919B (sv) 1990-09-17

Family

ID=20338027

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7904148A SE462919B (sv) 1979-05-11 1979-05-11 Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre

Country Status (9)

Country Link
US (1) US4451332A (sv)
JP (1) JPS55151001A (sv)
BR (1) BR8002768A (sv)
CA (2) CA1150011A (sv)
DE (1) DE3017712C2 (sv)
FI (1) FI73750B (sv)
FR (1) FR2456159A1 (sv)
NO (1) NO159541B (sv)
SE (1) SE462919B (sv)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67241B (fi) * 1981-06-10 1984-10-31 Aga Ab Saett foer blekning av cellulosahaltiga material
US4543155A (en) * 1983-01-31 1985-09-24 The Boc Group, Inc. Method for bleaching wood pulp including dissolving oxygen into the dilution water of an extraction stage
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
SE452896B (sv) * 1985-01-24 1987-12-21 Aga Ab Forfarande for behandling av cellulosamassor
WO1988001661A1 (en) * 1986-08-28 1988-03-10 James River-Norwalk, Inc. Pulp bleaching process
FR2604102B1 (fr) * 1986-09-18 1988-11-10 Air Liquide Masse silicocalcaire a haute porosite pour stockage de gaz, et procede de fabrication
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass
US5023097A (en) * 1988-04-05 1991-06-11 Xylan, Inc. Delignification of non-woody biomass
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
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
SE466062B (sv) * 1990-04-30 1991-12-09 Sunds Defibrator Ind Ab Blekning av kemisk massa
US5164043A (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
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
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
US5697990A (en) * 1995-01-31 1997-12-16 Worthington Acetylene Cylinder, Inc. High porosity calcium silicate mass for storing acetylene gas
US5632788A (en) * 1995-01-31 1997-05-27 Worthington Acetylene Cylinder, Inc. High porosity calcium silicate mass for storing acetylene gas
US5705216A (en) * 1995-08-11 1998-01-06 Tyson; George J. Production of hydrophobic fibers
US20050067122A1 (en) * 2000-05-17 2005-03-31 Bijan Kazem Methods of processing lignocellulosic pulp with cavitation
RU2425069C2 (ru) * 2009-07-02 2011-07-27 Учреждение Российской Академии Наук Институт Биохимической Физики Им. Н.М. Эмануэля Ран (Ибхф Ран) Антипирен, способ его получения, способ огнезащитной обработки материалов и способ тушения очага горения
FI123023B (sv) 2009-09-01 2012-10-15 Andritz Oy Förfarande och anordning för avskiljning av såpa

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147618A (en) * 1936-04-01 1939-02-14 West Virginia Pulp & Paper Com Method of bleaching pulp
SE360128C (sv) * 1970-08-25 1983-10-31 Mo Och Domsjoe Ab Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
US3830688A (en) * 1970-10-23 1974-08-20 Skogsaegarnas Ind Ab Method of reducing the discharge of waste products from pulp mills
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen
AU473185B2 (en) * 1973-07-25 1976-06-17 Mooch Domsjo Aktiebolag A method for producing oxidized white liquor
SE379069B (sv) * 1973-08-27 1975-09-22 Kamyr Ab
SE390549C (sv) * 1973-12-20 1986-04-14 Ahlstroem Oy Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo
US4104114A (en) * 1977-05-05 1978-08-01 Erco Envirotech Ltd. Bleach plant operation
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp

Also Published As

Publication number Publication date
JPS55151001A (en) 1980-11-25
CA1150011A (en) 1983-07-19
US4451332A (en) 1984-05-29
DE3017712A1 (de) 1980-11-20
FR2456159A1 (fr) 1980-12-05
FI73750B (fi) 1987-07-31
CA1235257B (en) 1988-04-19
SE462919B (sv) 1990-09-17
FI801254A (fi) 1980-11-12
BR8002768A (pt) 1980-12-16
FR2456159B1 (sv) 1984-09-28
NO801386L (no) 1980-11-12
DE3017712C2 (de) 1986-11-06
NO159541B (no) 1988-10-03

Similar Documents

Publication Publication Date Title
SE7904148L (sv) Sett vid blekning av lignocellulosahaltigt material
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
FI810366L (fi) Foerfarande foer blekning av cellulosa medelst organisk persyra
SE9700143D0 (sv) Kraftkokning i två steg
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
SE8105552L (sv) Forfarande vid delignifierande blekning av cellulosamassa
DE3669334D1 (de) Sulfitaufschlussverfahren zur herstellung von zellstoff aus lignozellulosehaltigen materialien mit rueckgewinnung der aufschlusschemikalien.
SE7801814L (sv) Forfarande for framstellning av slipmassa
SE7801813L (sv) Forfarande for framstellning av slipmassa
SE8003911L (sv) Forfarande for syrgasblekning av cellulosamassa
ATE138129T1 (de) Diskontinuierliches verfahren zur herstellung von kraft-zellstoffen
DE69100049D1 (de) Verminderung der halogenierten organischen verbindungen in den bleichereiabwaessern.
KR900018469A (ko) 과산화수소 강화된 산소 탈리그닌화 방법
SE8206859L (sv) Forfarande vid delignifierande blekning av cellulosamassa
DE69121332D1 (de) Verfahren zur herstellung von kraftpulpe
SE8008337L (sv) Forfarande for delignifiering/blekning av cellulosamassa
SE8604852L (sv) Delignifiering och blekning av en cellulosamassa med en alkali-syre-hypokloritextraktion
DE59705632D1 (de) Verfahren zur Herstellung von Papiermasse
ATE5268T1 (de) Verfahren und mischung zur herstellung von cellulosepulpen.
SU861441A1 (ru) Способ получени полуцеллюлозы
SE9101587L (sv) Framstaellning av kemitermomekanisk massa samt impregneringsloesning innehaallande borhydrid och sulfit
SE8106203L (sv) Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning
FR2288816A1 (fr) Procede pour commander l'amenee de reactifs chimiques aux systemes de delignification et de blanchiment de pate
SU652252A1 (ru) Способ отбелки целлюлозы
RU2138590C1 (ru) Способ получения целлюлозы для химической переработки