FI960972A - Method for bleaching lignocellulosic pulp - Google Patents

Method for bleaching lignocellulosic pulp Download PDF

Info

Publication number
FI960972A
FI960972A FI960972A FI960972A FI960972A FI 960972 A FI960972 A FI 960972A FI 960972 A FI960972 A FI 960972A FI 960972 A FI960972 A FI 960972A FI 960972 A FI960972 A FI 960972A
Authority
FI
Finland
Prior art keywords
lignocellulosic pulp
bleaching lignocellulosic
bleaching
pulp
lignocellulosic
Prior art date
Application number
FI960972A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI960972A0 (en
Inventor
Michael A Pikulin
Thomas P Gandek
James C Joseph
Original Assignee
Union Camp Patent Holding
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 filed Critical Union Camp Patent Holding
Publication of FI960972A0 publication Critical patent/FI960972A0/en
Publication of FI960972A publication Critical patent/FI960972A/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI960972A 1993-09-02 1996-03-01 Method for bleaching lignocellulosic pulp FI960972A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11604093A 1993-09-02 1993-09-02
US26809994A 1994-06-29 1994-06-29
PCT/US1994/009951 WO1995006772A1 (en) 1993-09-02 1994-09-02 Improved method for bleaching lignocellulosic pulp

Publications (2)

Publication Number Publication Date
FI960972A0 FI960972A0 (en) 1996-03-01
FI960972A true FI960972A (en) 1996-04-29

Family

ID=26813841

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960972A FI960972A (en) 1993-09-02 1996-03-01 Method for bleaching lignocellulosic pulp

Country Status (7)

Country Link
EP (1) EP0720676A4 (en)
JP (1) JPH09502229A (en)
AU (1) AU7720094A (en)
BR (1) BR9407409A (en)
CA (1) CA2170398A1 (en)
FI (1) FI960972A (en)
WO (1) WO1995006772A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4641629B2 (en) * 2001-01-26 2011-03-02 日本製紙株式会社 Cellulose fiber material pulp bleaching method
FI20022068A (en) * 2002-11-20 2004-05-21 Metso Paper Inc Method and apparatus for producing mechanical pulp
FI126563B (en) * 2012-03-12 2017-02-15 Upm Kymmene Corp Method and apparatus for treating fluid streams in a cellulose plant
FI128900B (en) * 2012-03-12 2021-02-26 Upm Kymmene Corp A method for treating liquid flows at a chemical pulp mill and use of low chloride content process waters at a chemical pulp mill
CN104703718B (en) * 2012-09-27 2018-04-03 安德里兹有限公司 The chemical treatment of lignocellulose fiber beam material and relative method and system
SE2230370A1 (en) * 2022-11-15 2024-05-16 Valmet Oy Method for bleaching cellulose pulp formed from recycled textile material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO142091C (en) * 1977-10-17 1980-06-25 Myrens Verksted As PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
WO1986004938A1 (en) * 1985-02-14 1986-08-28 Edward Francis Elton Method and apparatus for alkaline delignification of lignocellulosic fibrous materials
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
BR9007533A (en) * 1990-05-17 1992-04-28 Union Camp Corp PROCESS FOR THE MANUFACTURE OF TARGETED PULP AND TO DESIGNIFY AND TARGET A LIGNOSCELULOSIC MATERIAL
SE469842C (en) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Bleaching of chemical pulp with peroxide

Also Published As

Publication number Publication date
BR9407409A (en) 1996-11-12
EP0720676A1 (en) 1996-07-10
WO1995006772A1 (en) 1995-03-09
FI960972A0 (en) 1996-03-01
AU7720094A (en) 1995-03-22
CA2170398A1 (en) 1995-03-09
JPH09502229A (en) 1997-03-04
EP0720676A4 (en) 1998-03-04

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