NO920217L - ENVIRONMENTALLY IMPROVED PROCEDURE FOR WHITING LIGNOCELLULOSE MATERIALS - Google Patents

ENVIRONMENTALLY IMPROVED PROCEDURE FOR WHITING LIGNOCELLULOSE MATERIALS

Info

Publication number
NO920217L
NO920217L NO92920217A NO920217A NO920217L NO 920217 L NO920217 L NO 920217L NO 92920217 A NO92920217 A NO 92920217A NO 920217 A NO920217 A NO 920217A NO 920217 L NO920217 L NO 920217L
Authority
NO
Norway
Prior art keywords
iii
pulp
whiting
improved procedure
lignocellulose materials
Prior art date
Application number
NO92920217A
Other languages
Norwegian (no)
Other versions
NO920217D0 (en
NO300929B1 (en
Inventor
Bruce F Griggs
Thomas P Gandek
Michael A Pikulin
Allen Rosen
Original Assignee
Union Camp Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22220868&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO920217(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Union Camp Corp filed Critical Union Camp Corp
Publication of NO920217D0 publication Critical patent/NO920217D0/en
Publication of NO920217L publication Critical patent/NO920217L/en
Publication of NO300929B1 publication Critical patent/NO300929B1/en

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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Detergent Compositions (AREA)

Abstract

(i) Wood chips are chemically digested to provide lignocellulosic pulp followed by e.g. washing and screening (ii) pulp is then O2 delignified and (iii) comminuted and O3 treated for further delignification and bleaching. Pulp prod. obtd. in (iii) can be further brightened by addn. of CO2 or a peroxide. Typically at end of step (ii) pulps have a K number of 10 or less and viscosity above 13cps.. Corresp. values at completion of (iii) are 5 or less and above 10cps.. Digestion in (i) is e.g. by Kraft pulping. Pulp pH in (iii) is pref. 1-4 and temp. is ambient.
NO920217A 1990-05-17 1992-01-16 Process for bleaching lignocellulosic materials NO300929B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1990/002823 WO1991018145A1 (en) 1990-05-17 1990-05-17 Environmentally improved process for bleaching lignocellulosic materials

Publications (3)

Publication Number Publication Date
NO920217D0 NO920217D0 (en) 1992-01-16
NO920217L true NO920217L (en) 1992-03-05
NO300929B1 NO300929B1 (en) 1997-08-18

Family

ID=22220868

Family Applications (1)

Application Number Title Priority Date Filing Date
NO920217A NO300929B1 (en) 1990-05-17 1992-01-16 Process for bleaching lignocellulosic materials

Country Status (16)

Country Link
EP (1) EP0483163B1 (en)
JP (1) JP2825346B2 (en)
KR (1) KR920703922A (en)
CN (1) CN1043798C (en)
AT (1) ATE122421T1 (en)
AU (1) AU638017B2 (en)
BR (1) BR9007533A (en)
CA (1) CA2063591C (en)
DE (1) DE69019350T2 (en)
ES (1) ES2073027T3 (en)
NO (1) NO300929B1 (en)
PT (1) PT98487B (en)
RU (1) RU2102547C1 (en)
SE (1) SE9200107L (en)
WO (1) WO1991018145A1 (en)
ZA (1) ZA915969B (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5328564A (en) * 1990-09-17 1994-07-12 Kamyr, Inc. Modified digestion of paper pulp followed by ozone bleaching
CA2099881A1 (en) * 1991-01-03 1992-07-04 Omar F. Ali Chlorine-free process for bleaching lignocellulosic pulp
SE468355B (en) * 1991-04-30 1992-12-21 Eka Nobel Ab CHEMISTRY OF CHEMICAL MASS THROUGH TREATMENT WITH COMPLEX PICTURES AND OZONE
NZ242792A (en) † 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
US5364503A (en) * 1992-02-20 1994-11-15 Macmillan Bloedel Limited Nitric oxide treatment for ozone bleaching
CA2089516A1 (en) * 1992-02-21 1993-08-22 Kaj Henricson Chlorine free pulping and bleaching sequence
SE469387B (en) * 1992-05-11 1993-06-28 Kamyr Ab SEATING WHITE PILLOW WITHOUT USING CHLORIC CHEMICALS
JPH08502327A (en) * 1992-10-01 1996-03-12 ユニオン キャムプ パテント ホールディング インコーポレーテッド Improved bleaching of high consistency lignocellulosic pulp
US5403441A (en) * 1992-11-13 1995-04-04 Union Camp Patent Holding, Inc. Method for controlling an ozone bleaching process
SE501613C2 (en) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Method of integrating bleaching and recycling in pulp production
CA2170398A1 (en) * 1993-09-02 1995-03-09 Michael A. Pikulin Improved method for bleaching lignocellulosic pulp
AU7721694A (en) * 1993-09-03 1995-03-22 Union Camp Patent Holding, Inc. Medium consistency ozone brightening of high consistency ozone bleached pulp
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
SE502172C2 (en) * 1993-12-15 1995-09-04 Mo Och Domsjoe Ab Process for the preparation of bleached cellulose pulp with a chlorine-free bleaching sequence in the presence of carbonate
EP0831170A3 (en) * 1994-06-27 1998-11-11 Champion International Corporation Improved process for recycling bleach plant filtrate
US5672247A (en) * 1995-03-03 1997-09-30 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5736004A (en) * 1995-03-03 1998-04-07 Union Camp Patent Holding, Inc. Control scheme for rapid pulp delignification and bleaching
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent
CN1050642C (en) * 1996-06-25 2000-03-22 华南理工大学 Everyday production 30-150 ton high concentration paper pulp bleaching method by using hydrogen peroxide
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
ID23571A (en) * 1997-08-25 2000-05-04 Praxair Technology Inc METHOD OF OZONE APPLICATION IN ECF BLEACHING
FR2910027B1 (en) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc PROCESS FOR WHITENING CHEMICAL STRIPPING PASTES BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE
FI119062B (en) * 2006-12-28 2008-07-15 Upm Kymmene Corp Process for the manufacture of mechanical pulp
JP4973284B2 (en) * 2007-03-30 2012-07-11 栗田工業株式会社 Pulp cleaning agent, pulp manufacturing method, and pulp cleaning method
US8497097B2 (en) * 2010-08-11 2013-07-30 Georgia Tech Research Corporation Chlorine dioxide treatment of biomass feedstock
CN104313933A (en) * 2014-09-23 2015-01-28 华南理工大学 Green bleaching method of sulfate bagasse slurry
CN115112831A (en) * 2022-04-12 2022-09-27 中国制浆造纸研究院有限公司 Method for measuring dissolving performance of pulp for lyocell fibers and filtering device
CN115584653B (en) * 2022-12-12 2023-03-10 河南禾力能源有限公司 Method for extracting alpha-cellulose by furfural residues

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1090510A (en) * 1976-06-02 1980-12-02 Arthur W. Kempf Delignification and bleaching of a lignocellulosic pulp slurry with ozone
JPS5390402A (en) * 1977-01-12 1978-08-09 Kogyo Gijutsuin Pulp bleaching method
FI67413C (en) * 1977-04-27 1985-03-11 Myrens Verksted As FOERFARANDE FOER BEHANDLING AV FINFOERDELAD FIBERHALTIG ELLER CELLULOSAHALTIG MASS SAMT ANORDNING FOER UTFOERANDE AV FOERFARANDET
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
NO142091C (en) * 1977-10-17 1980-06-25 Myrens Verksted As PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
JPS5679797A (en) * 1979-11-30 1981-06-30 Weyerhaeuser Co Bleaching of cellulose fiber
US4619733A (en) * 1983-11-30 1986-10-28 Kooi Boon Lam Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
US4806203A (en) * 1985-02-14 1989-02-21 Elton Edward F Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction
CA2015296C (en) * 1989-05-31 2001-08-07 Karnail Atwal Pyranyl cyanoguanidine derivatives
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making

Also Published As

Publication number Publication date
NO920217D0 (en) 1992-01-16
DE69019350T2 (en) 1996-02-15
AU5676890A (en) 1991-12-10
PT98487B (en) 1998-06-30
DE69019350D1 (en) 1995-06-14
RU2102547C1 (en) 1998-01-20
CA2063591A1 (en) 1991-11-18
AU638017B2 (en) 1993-06-17
CN1069304A (en) 1993-02-24
CN1043798C (en) 1999-06-23
ATE122421T1 (en) 1995-05-15
SE9200107D0 (en) 1992-01-15
CA2063591C (en) 1998-02-03
ZA915969B (en) 1992-04-29
PT98487A (en) 1993-01-29
KR920703922A (en) 1992-12-18
JPH05500243A (en) 1993-01-21
SE9200107L (en) 1992-03-13
WO1991018145A1 (en) 1991-11-28
BR9007533A (en) 1992-04-28
EP0483163A4 (en) 1992-08-05
JP2825346B2 (en) 1998-11-18
EP0483163A1 (en) 1992-05-06
NO300929B1 (en) 1997-08-18
EP0483163B1 (en) 1995-05-10
ES2073027T3 (en) 1995-08-01

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MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN NOVEMBER 2002