FI960973A - Ozone bleaching of high density ozone bleached pulp - Google Patents

Ozone bleaching of high density ozone bleached pulp Download PDF

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Publication number
FI960973A
FI960973A FI960973A FI960973A FI960973A FI 960973 A FI960973 A FI 960973A FI 960973 A FI960973 A FI 960973A FI 960973 A FI960973 A FI 960973A FI 960973 A FI960973 A FI 960973A
Authority
FI
Finland
Prior art keywords
ozone
high density
bleached pulp
bleaching
ozone bleaching
Prior art date
Application number
FI960973A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI960973A0 (en
Inventor
Spencer W Eachus
Omar F Ali
George Pangalos
Thomas P Gandek
Michael A Pikulin
Allen Rosen
Bruce F Griggs
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 FI960973A0 publication Critical patent/FI960973A0/en
Publication of FI960973A publication Critical patent/FI960973A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI960973A 1993-09-03 1996-03-01 Ozone bleaching of high density ozone bleached pulp FI960973A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11677693A 1993-09-03 1993-09-03
PCT/US1994/010050 WO1995006773A1 (en) 1993-09-03 1994-09-01 Medium consistency ozone brightening of high consistency ozone bleached pulp

Publications (2)

Publication Number Publication Date
FI960973A0 FI960973A0 (en) 1996-03-01
FI960973A true FI960973A (en) 1996-04-30

Family

ID=22369146

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960973A FI960973A (en) 1993-09-03 1996-03-01 Ozone bleaching of high density ozone bleached pulp

Country Status (8)

Country Link
EP (1) EP0717800A4 (en)
AU (1) AU7721694A (en)
BR (1) BR9407457A (en)
CA (1) CA2170733A1 (en)
FI (1) FI960973A (en)
SE (1) SE9600773L (en)
WO (1) WO1995006773A1 (en)
ZA (1) ZA946807B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2382592A (en) * 2001-11-30 2003-06-04 Sca Hygiene Prod Gmbh Use of ozone to enhance the wet strength of fibrous cellulosic material
GB2391011A (en) * 2002-07-19 2004-01-28 Crosmill Ltd Bleaching cellulose suspensions
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
FR3007044B1 (en) * 2013-06-13 2016-01-15 Air Liquide PROCESS FOR TREATING CHEMICAL PAPER PASTES BY OZONE TREATMENT IN THE PRESENCE OF MAGNESIUM IONS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
DE402335T1 (en) * 1989-06-06 1992-04-09 Eka Nobel Ab, Surte METHOD FOR BLEACHING LIGNOCELLULOSE-CONTAINING CELLS.
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
ES2073027T3 (en) * 1990-05-17 1995-08-01 Union Camp Patent Holding ENVIRONMENTALLY IMPROVED PROCEDURE FOR WHITENING LIGNOCELLULOSIC MATERIALS.
US5328564A (en) * 1990-09-17 1994-07-12 Kamyr, Inc. Modified digestion of paper pulp followed by ozone bleaching
CA2089516A1 (en) * 1992-02-21 1993-08-22 Kaj Henricson Chlorine free pulping and bleaching sequence

Also Published As

Publication number Publication date
SE9600773D0 (en) 1996-02-28
BR9407457A (en) 1996-11-12
CA2170733A1 (en) 1995-03-09
EP0717800A1 (en) 1996-06-26
EP0717800A4 (en) 1998-10-28
AU7721694A (en) 1995-03-22
WO1995006773A1 (en) 1995-03-09
SE9600773L (en) 1996-04-18
ZA946807B (en) 1995-06-28
FI960973A0 (en) 1996-03-01

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