BR9007533A - PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL - Google Patents

PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL

Info

Publication number
BR9007533A
BR9007533A BR909007533A BR9007533A BR9007533A BR 9007533 A BR9007533 A BR 9007533A BR 909007533 A BR909007533 A BR 909007533A BR 9007533 A BR9007533 A BR 9007533A BR 9007533 A BR9007533 A BR 9007533A
Authority
BR
Brazil
Prior art keywords
pulp
iii
lignoscelulosic
designify
manufacture
Prior art date
Application number
BR909007533A
Other languages
Portuguese (pt)
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=BR9007533(A) "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 BR9007533A publication Critical patent/BR9007533A/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.
BR909007533A 1990-05-17 1990-05-17 PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL BR9007533A (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 (1)

Publication Number Publication Date
BR9007533A true BR9007533A (en) 1992-04-28

Family

ID=22220868

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909007533A BR9007533A (en) 1990-05-17 1990-05-17 PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL

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 (29)

* 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
WO1992012289A1 (en) * 1991-01-03 1992-07-23 Union Camp Patent Holding, Inc. 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
EP0515303B2 (en) † 1991-05-24 2001-07-04 Union Camp Patent Holding, Inc. Method for ozone bleaching
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
CA2144433A1 (en) * 1992-10-01 1994-04-14 Thomas P. Gandek 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
BR9407409A (en) * 1993-09-02 1996-11-12 Union Camp Patent Holding Process to treat lignocellulosic pulp before the bleaching stage and delignify it in the oxygen delignification stage
BR9407457A (en) * 1993-09-03 1996-11-12 Union Camp Patent Holding Process for the preparation of a targeted pulp having a certain luster and a certain resistance as indicated by a certain viscosity
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
ATE176285T1 (en) * 1994-06-27 1999-02-15 Champion Int Corp IMPROVED METHOD FOR RECOVERING FILTRATES FROM SHEET METAL EQUIPMENT
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
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
NO300929B1 (en) 1997-08-18
NO920217D0 (en) 1992-01-16
CN1069304A (en) 1993-02-24
CN1043798C (en) 1999-06-23
ZA915969B (en) 1992-04-29
EP0483163A1 (en) 1992-05-06
PT98487A (en) 1993-01-29
DE69019350T2 (en) 1996-02-15
JPH05500243A (en) 1993-01-21
ATE122421T1 (en) 1995-05-15
SE9200107L (en) 1992-03-13
CA2063591C (en) 1998-02-03
JP2825346B2 (en) 1998-11-18
RU2102547C1 (en) 1998-01-20
PT98487B (en) 1998-06-30
AU638017B2 (en) 1993-06-17
EP0483163A4 (en) 1992-08-05
WO1991018145A1 (en) 1991-11-28
EP0483163B1 (en) 1995-05-10
KR920703922A (en) 1992-12-18
NO920217L (en) 1992-03-05
CA2063591A1 (en) 1991-11-18
SE9200107D0 (en) 1992-01-15
AU5676890A (en) 1991-12-10
DE69019350D1 (en) 1995-06-14
ES2073027T3 (en) 1995-08-01

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 17/05/2010