FI811738L - Foerfarande foer syrgasblekning av cellulosamassa - Google Patents

Foerfarande foer syrgasblekning av cellulosamassa

Info

Publication number
FI811738L
FI811738L FI811738A FI811738A FI811738L FI 811738 L FI811738 L FI 811738L FI 811738 A FI811738 A FI 811738A FI 811738 A FI811738 A FI 811738A FI 811738 L FI811738 L FI 811738L
Authority
FI
Finland
Prior art keywords
syrgasblekning
cellulosamassa
foerfarande foer
foerfarande
foer
Prior art date
Application number
FI811738A
Other languages
English (en)
Other versions
FI69135C (fi
FI69135B (fi
Inventor
Hans Olof Samuelson
Original Assignee
Mo Och Domsjoe 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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Publication of FI811738L publication Critical patent/FI811738L/fi
Application granted granted Critical
Publication of FI69135B publication Critical patent/FI69135B/fi
Publication of FI69135C publication Critical patent/FI69135C/fi

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI811738A 1980-06-05 1981-06-04 Foerfarande foer syrgasblekning av cellulosamassa FI69135C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8004184A SE421938B (sv) 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
SE8004184 1980-06-05

Publications (3)

Publication Number Publication Date
FI811738L true FI811738L (fi) 1981-12-06
FI69135B FI69135B (fi) 1985-08-30
FI69135C FI69135C (fi) 1985-12-10

Family

ID=20341137

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811738A FI69135C (fi) 1980-06-05 1981-06-04 Foerfarande foer syrgasblekning av cellulosamassa

Country Status (11)

Country Link
US (1) US4439271A (fi)
JP (1) JPS5725490A (fi)
AT (1) AT375693B (fi)
AU (1) AU547231B2 (fi)
CA (1) CA1167207A (fi)
DE (1) DE3122297C2 (fi)
FI (1) FI69135C (fi)
FR (1) FR2483972A1 (fi)
NO (1) NO156795C (fi)
NZ (1) NZ197165A (fi)
SE (1) SE421938B (fi)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider
DE3213856C2 (de) * 1982-04-15 1984-05-10 Mo och Domsjö AB, 89191 Örnsköldsvik Verfahren zum Delignifizieren eines chemisch hergestellten Cellulosehalbstoffes
SE434283B (sv) * 1982-12-01 1984-07-16 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas
SE451149B (sv) * 1983-01-26 1987-09-07 Mo Och Domsjoe Ab Apparatur for kontinuerlig behandling av vatteninnehallande lignocellulosamaterial med kveveoxid och syre
SE452176B (sv) * 1984-03-28 1987-11-16 Mo Och Domsjoe Ab Forfarande for framstellning av kveveoxider ur avlutar fran cellulosamassatillverkning
SE451023B (sv) * 1985-12-10 1987-08-24 Mo Och Domsjoe Ab Forfarande vid aktivering av lignocellulosamaterial med kvevedioxid innehallande gas
SE460543B (sv) * 1987-09-28 1989-10-23 Mo Och Domsjoe Ab Foerfarande vid aktivering av lignocellulosamaterial med kvaevedioxid innehaallande gas
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
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
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
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
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
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
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
DE4203923A1 (de) * 1992-02-11 1993-08-12 Henkel Kgaa Verfahren zur herstellung von polycarboxylaten auf polysaccharid-basis
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
WO2004106624A1 (en) * 2003-06-03 2004-12-09 Pacific Pulp Resources Inc. Method for producing pulp and lignin
CN104389221B (zh) * 2009-08-05 2017-11-03 国际纸业公司 用于施加包含阳离子三价金属和解胶剂的组合物的方法以及由该方法制造的绒毛浆片材
ES2529104T3 (es) 2009-08-05 2015-02-16 International Paper Company Aditivo para láminas secas de pasta de papel esponjosa
MY162376A (en) * 2009-08-05 2017-06-15 Shell Int Research Method for monitoring a well
ES2952420T3 (es) 2010-07-20 2023-10-31 Int Paper Co Composición que contiene un metal catiónico multivalente y un agente antiestático que contiene amina y métodos de fabricación y uso
US8871054B2 (en) 2010-07-22 2014-10-28 International Paper Company Process for preparing fluff pulp sheet with cationic dye and debonder surfactant
US11193237B2 (en) * 2017-09-11 2021-12-07 Solenis Technologies, L.P. Method for enhanced oxygen delignification of chemical wood pulps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU419593A1 (ru) * 1971-11-30 1974-03-15 Г. Л. Аким , В. М. Никитин Способ отбелки целлюлозы
FR2158873A5 (en) * 1972-10-09 1973-06-15 Bourit Jean Pierre Bleaching of wood cellulose - using nitrogen oxides
US4076579A (en) * 1973-08-06 1978-02-28 The Regents Of The University Of California Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen
US4087318A (en) * 1974-03-14 1978-05-02 Mo Och Domsjo Aktiebolag Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification

Also Published As

Publication number Publication date
SE421938B (sv) 1982-02-08
JPS6350465B2 (fi) 1988-10-07
DE3122297A1 (de) 1982-04-01
FR2483972B1 (fi) 1983-10-28
CA1167207A (en) 1984-05-15
FR2483972A1 (fr) 1981-12-11
NO156795C (no) 1987-11-25
AT375693B (de) 1984-08-27
NO811906L (no) 1981-12-07
FI69135C (fi) 1985-12-10
DE3122297C2 (de) 1984-04-12
NO156795B (no) 1987-08-17
FI69135B (fi) 1985-08-30
AU7136481A (en) 1981-12-10
JPS5725490A (en) 1982-02-10
SE8004184L (fi) 1981-12-06
US4439271A (en) 1984-03-27
AU547231B2 (en) 1985-10-10
NZ197165A (en) 1983-09-30
ATA251581A (de) 1984-01-15

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: MO OCH DOMSJOE AKTIEBOLAG