FI69135C - Foerfarande foer syrgasblekning av cellulosamassa - Google Patents

Foerfarande foer syrgasblekning av cellulosamassa Download PDF

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Publication number
FI69135C
FI69135C FI811738A FI811738A FI69135C FI 69135 C FI69135 C FI 69135C FI 811738 A FI811738 A FI 811738A FI 811738 A FI811738 A FI 811738A FI 69135 C FI69135 C FI 69135C
Authority
FI
Finland
Prior art keywords
pulp
fed
reaction
oxygen
activation
Prior art date
Application number
FI811738A
Other languages
English (en)
Finnish (fi)
Other versions
FI811738L (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
Publication of FI69135B publication Critical patent/FI69135B/fi
Application granted granted Critical
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
SE8004184 1980-06-05
SE8004184A SE421938B (sv) 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning

Publications (3)

Publication Number Publication Date
FI811738L FI811738L (fi) 1981-12-06
FI69135B FI69135B (fi) 1985-08-30
FI69135C true 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 (de)
JP (1) JPS5725490A (de)
AT (1) AT375693B (de)
AU (1) AU547231B2 (de)
CA (1) CA1167207A (de)
DE (1) DE3122297C2 (de)
FI (1) FI69135C (de)
FR (1) FR2483972A1 (de)
NO (1) NO156795C (de)
NZ (1) NZ197165A (de)
SE (1) SE421938B (de)

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
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
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
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
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
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
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
AU2003291874A1 (en) * 2003-06-03 2005-01-21 David Tarasenko Method for producing pulp and lignin
WO2011017532A2 (en) * 2009-08-05 2011-02-10 International Paper Company Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same
CN102472004B (zh) 2009-08-05 2015-06-17 国际纸业公司 干燥绒毛浆片材添加剂
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
CN103003488B (zh) 2010-07-22 2015-04-15 国际纸业公司 使用阳离子型染料和解胶剂型表面活性剂制造绒毛浆片材的方法和由该方法制得的绒毛浆片材
CN111344455B (zh) * 2017-09-11 2022-10-28 索理思科技公司 用于增强化学木浆的氧脱木质素的方法

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
NO811906L (no) 1981-12-07
FR2483972B1 (de) 1983-10-28
NO156795C (no) 1987-11-25
NZ197165A (en) 1983-09-30
FI811738L (fi) 1981-12-06
ATA251581A (de) 1984-01-15
NO156795B (no) 1987-08-17
DE3122297C2 (de) 1984-04-12
FR2483972A1 (fr) 1981-12-11
FI69135B (fi) 1985-08-30
JPS5725490A (en) 1982-02-10
SE8004184L (de) 1981-12-06
CA1167207A (en) 1984-05-15
SE421938B (sv) 1982-02-08
DE3122297A1 (de) 1982-04-01
JPS6350465B2 (de) 1988-10-07
US4439271A (en) 1984-03-27
AU547231B2 (en) 1985-10-10
AU7136481A (en) 1981-12-10
AT375693B (de) 1984-08-27

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MM Patent lapsed
MM Patent lapsed

Owner name: MO OCH DOMSJOE AKTIEBOLAG