NO157224C - Fremgangsmaate for delignifisering av kjemisk cellulosemasse med oxygengass. - Google Patents

Fremgangsmaate for delignifisering av kjemisk cellulosemasse med oxygengass.

Info

Publication number
NO157224C
NO157224C NO811780A NO811780A NO157224C NO 157224 C NO157224 C NO 157224C NO 811780 A NO811780 A NO 811780A NO 811780 A NO811780 A NO 811780A NO 157224 C NO157224 C NO 157224C
Authority
NO
Norway
Prior art keywords
cellulosmass
delignification
procedure
chemical
oxygen gas
Prior art date
Application number
NO811780A
Other languages
English (en)
Other versions
NO157224B (no
NO811780L (no
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 NO811780L publication Critical patent/NO811780L/no
Publication of NO157224B publication Critical patent/NO157224B/no
Publication of NO157224C publication Critical patent/NO157224C/no

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)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • External Artificial Organs (AREA)
NO811780A 1980-05-27 1981-05-26 Fremgangsmaate for delignifisering av kjemisk cellulosemasse med oxygengass. NO157224C (no)

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 (3)

Publication Number Publication Date
NO811780L NO811780L (no) 1981-11-30
NO157224B NO157224B (no) 1987-11-02
NO157224C true NO157224C (no) 1988-02-10

Family

ID=20341039

Family Applications (1)

Application Number Title Priority Date Filing Date
NO811780A NO157224C (no) 1980-05-27 1981-05-26 Fremgangsmaate for delignifisering av kjemisk cellulosemasse med oxygengass.

Country Status (8)

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

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
CA2321683C (en) * 1998-03-16 2005-09-27 Pulp And Paper Research Institute Of Canada Additives to chlorine dioxide bleaching
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
EP3682056A4 (en) 2017-09-11 2021-06-09 Solenis Technologies, L.P. PROCESS FOR IMPROVED OXYGEN DELIGNIFICATION OF CHEMICAL WOOD PULP

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE360128C (sv) * 1970-08-25 1983-10-31 Mo Och Domsjoe Ab Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
SE364323C (sv) * 1972-06-22 1976-04-12 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
AU528265B2 (en) * 1978-05-26 1983-04-21 Monsanto Europe S.A. Bleaching of pulp

Also Published As

Publication number Publication date
JPS6350464B2 (no) 1988-10-07
JPS5721589A (en) 1982-02-04
US4406735A (en) 1983-09-27
FI811597L (fi) 1981-11-28
SE441192B (sv) 1985-09-16
FR2483479A1 (fr) 1981-12-04
CA1175610A (en) 1984-10-09
SE8003911L (sv) 1981-11-28
NO157224B (no) 1987-11-02
NO811780L (no) 1981-11-30
NZ197068A (en) 1983-12-16
FR2483479B1 (no) 1985-05-24
FI75880B (fi) 1988-04-29
FI75880C (fi) 1988-08-08

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