EP0770157A4 - Improved bleaching of high consistency lignocellulosic pulp - Google Patents

Improved bleaching of high consistency lignocellulosic pulp

Info

Publication number
EP0770157A4
EP0770157A4 EP95926246A EP95926246A EP0770157A4 EP 0770157 A4 EP0770157 A4 EP 0770157A4 EP 95926246 A EP95926246 A EP 95926246A EP 95926246 A EP95926246 A EP 95926246A EP 0770157 A4 EP0770157 A4 EP 0770157A4
Authority
EP
European Patent Office
Prior art keywords
high consistency
improved bleaching
lignocellulosic pulp
consistency lignocellulosic
pulp
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95926246A
Other languages
German (de)
French (fr)
Other versions
EP0770157A1 (en
Inventor
Thomas P Gandek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Camp Patent Holding Inc
Original Assignee
Union Camp Patent Holding Inc
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 Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc
Publication of EP0770157A1 publication Critical patent/EP0770157A1/en
Publication of EP0770157A4 publication Critical patent/EP0770157A4/en
Withdrawn legal-status Critical Current

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
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
EP95926246A 1994-07-14 1995-07-11 Improved bleaching of high consistency lignocellulosic pulp Withdrawn EP0770157A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27509594A 1994-07-14 1994-07-14
US275095 1994-07-14
PCT/US1995/008691 WO1996002697A1 (en) 1994-07-14 1995-07-11 Improved bleaching of high consistency lignocellulosic pulp

Publications (2)

Publication Number Publication Date
EP0770157A1 EP0770157A1 (en) 1997-05-02
EP0770157A4 true EP0770157A4 (en) 1998-01-07

Family

ID=23050850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95926246A Withdrawn EP0770157A4 (en) 1994-07-14 1995-07-11 Improved bleaching of high consistency lignocellulosic pulp

Country Status (6)

Country Link
EP (1) EP0770157A4 (en)
BR (1) BR9508224A (en)
CA (1) CA2194962A1 (en)
FI (1) FI965216A (en)
WO (1) WO1996002697A1 (en)
ZA (1) ZA955827B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO856097A0 (en) 1997-08-14 1997-09-04 Commonwealth Scientific And Industrial Research Organisation Vector
US6291226B1 (en) * 1999-02-25 2001-09-18 National Research Council Of Canada Adenovirus mutants with deleted protease gene
MY162376A (en) 2009-08-05 2017-06-15 Shell Int Research Method for monitoring a well
PL2462277T3 (en) 2009-08-05 2015-04-30 Int Paper Co Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same
US8535482B2 (en) 2009-08-05 2013-09-17 International Paper Company Dry fluff pulp sheet additive
EP2596168B1 (en) 2010-07-20 2023-06-14 International Paper Company Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using
WO2012012633A1 (en) 2010-07-22 2012-01-26 International Paper Company Process for preparing fluff pulp sheet with cationic dye and debonder surfactant and fluff pulp sheet made from same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515303A1 (en) * 1991-05-24 1992-11-25 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor
WO1994008087A1 (en) * 1992-10-01 1994-04-14 Union Camp Patent Holding, Inc. Improved bleaching of high consistency lignocellulosic pulp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO131996C (en) * 1973-10-04 1975-09-03 Papirind Forskningsinst
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
AT395180B (en) * 1989-08-16 1992-10-12 Andritz Ag Maschf METHOD FOR CRUSHING MATERIALS AND SYSTEM FOR IMPLEMENTING IT
EP0492040A1 (en) * 1990-12-21 1992-07-01 Kamyr, Inc. Tumbling ozone reactor for paper pulp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515303A1 (en) * 1991-05-24 1992-11-25 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor
WO1994008087A1 (en) * 1992-10-01 1994-04-14 Union Camp Patent Holding, Inc. Improved bleaching of high consistency lignocellulosic pulp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9602697A1 *

Also Published As

Publication number Publication date
CA2194962A1 (en) 1996-02-01
FI965216A0 (en) 1996-12-27
BR9508224A (en) 1997-10-28
WO1996002697A1 (en) 1996-02-01
EP0770157A1 (en) 1997-05-02
ZA955827B (en) 1996-02-21
FI965216A (en) 1997-01-13

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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