SE8003911L - Forfarande for syrgasblekning av cellulosamassa - Google Patents

Forfarande for syrgasblekning av cellulosamassa

Info

Publication number
SE8003911L
SE8003911L SE8003911A SE8003911A SE8003911L SE 8003911 L SE8003911 L SE 8003911L SE 8003911 A SE8003911 A SE 8003911A SE 8003911 A SE8003911 A SE 8003911A SE 8003911 L SE8003911 L SE 8003911L
Authority
SE
Sweden
Prior art keywords
pulp
cellulosamas
procedure
oxygen bleaching
oxygen gas
Prior art date
Application number
SE8003911A
Other languages
Unknown language ( )
English (en)
Other versions
SE441192B (sv
Inventor
H O 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
Priority to SE8003911A priority Critical patent/SE441192B/sv
Priority to NZ197068A priority patent/NZ197068A/xx
Priority to JP7733381A priority patent/JPS5721589A/ja
Priority to FI811597A priority patent/FI75880C/sv
Priority to NO811780A priority patent/NO157224C/no
Priority to US06/267,968 priority patent/US4406735A/en
Priority to CA000378416A priority patent/CA1175610A/en
Priority to FR8110516A priority patent/FR2483479A1/fr
Publication of SE8003911L publication Critical patent/SE8003911L/sv
Publication of SE441192B publication Critical patent/SE441192B/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
    • 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
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • External Artificial Organs (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
SE8003911A 1980-05-27 1980-05-27 Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel SE441192B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE8003911A SE441192B (sv) 1980-05-27 1980-05-27 Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel
NZ197068A NZ197068A (en) 1980-05-27 1981-05-12 Method for oxygen gas bleaching of nitrogen dioxide-activated pulp
JP7733381A JPS5721589A (en) 1980-05-27 1981-05-20 Bleaching of cellulose pulp by oxygen gas
FI811597A FI75880C (sv) 1980-05-27 1981-05-25 Förfarande för syrgasblekning av cellulosamassa
NO811780A NO157224C (no) 1980-05-27 1981-05-26 Fremgangsmaate for delignifisering av kjemisk cellulosemasse med oxygengass.
US06/267,968 US4406735A (en) 1980-05-27 1981-05-27 Process for alkaline oxygen gas bleaching of cellulose pulp
CA000378416A CA1175610A (en) 1980-05-27 1981-05-27 Process for alkaline oxygen gas bleaching of cellulose pulp
FR8110516A FR2483479A1 (fr) 1980-05-27 1981-05-27 Procede de delignification et/ou de blanchiment de pate de cellulose au gaz oxygene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8003911A SE441192B (sv) 1980-05-27 1980-05-27 Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel

Publications (2)

Publication Number Publication Date
SE8003911L true SE8003911L (sv) 1981-11-28
SE441192B SE441192B (sv) 1985-09-16

Family

ID=20341039

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8003911A SE441192B (sv) 1980-05-27 1980-05-27 Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel

Country Status (8)

Country Link
US (1) US4406735A (sv)
JP (1) JPS5721589A (sv)
CA (1) CA1175610A (sv)
FI (1) FI75880C (sv)
FR (1) FR2483479A1 (sv)
NO (1) NO157224C (sv)
NZ (1) NZ197068A (sv)
SE (1) SE441192B (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE450394B (sv) * 1981-12-30 1987-06-22 Mo Och Domsjoe Ab Forfarande for blekning av ligninhaltig cellulosamassa
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
JPH0351388A (ja) * 1989-07-19 1991-03-05 Mitsubishi Paper Mills Ltd 酸素漂白に先立つ蒸解パルプ洗浄方法
JPH0351387A (ja) * 1989-07-19 1991-03-05 Mitsubishi Paper Mills Ltd 酸素漂白に先立つ蒸解パルプ洗浄法
AT395180B (de) * 1989-08-16 1992-10-12 Andritz Ag Maschf Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
WO1999047744A1 (en) * 1998-03-16 1999-09-23 Pulp And Paper Research Institute Of Canada Chlorine dioxide bleaching with additives
CN100485393C (zh) * 2004-09-09 2009-05-06 华南理工大学 一种无污染的高纯度纤维素的分离分析方法
CA3075029A1 (en) 2017-09-11 2019-03-14 Solenis Technologies, L.P. Method for enhanced oxygen delignification of chemical wood pulps

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE360128C (sv) * 1970-08-25 1983-08-02 Mo Och Domsjoe Ab Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
SE364323C (sv) * 1972-06-22 1976-04-01 Billeruds Ab Sett att behandla cellulosamassa i alkalisk miljo
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
SU642399A1 (ru) * 1974-03-11 1979-01-15 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Способ плучени целлюлозы
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
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification
SE7904430L (sv) * 1978-05-26 1979-11-27 Monsanto Europe Sa Massablekning

Also Published As

Publication number Publication date
FI811597L (fi) 1981-11-28
NO157224B (no) 1987-11-02
FR2483479B1 (sv) 1985-05-24
JPS5721589A (en) 1982-02-04
FI75880C (sv) 1988-08-08
CA1175610A (en) 1984-10-09
JPS6350464B2 (sv) 1988-10-07
NO157224C (no) 1988-02-10
SE441192B (sv) 1985-09-16
FR2483479A1 (fr) 1981-12-04
FI75880B (fi) 1988-04-29
US4406735A (en) 1983-09-27
NO811780L (no) 1981-11-30
NZ197068A (en) 1983-12-16

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