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FI964715L - Method for bleaching cellulose pulp - Google Patents

Method for bleaching cellulose pulp Download PDF

Info

Publication number
FI964715L
FI964715L FI964715A FI964715A FI964715L FI 964715 L FI964715 L FI 964715L FI 964715 A FI964715 A FI 964715A FI 964715 A FI964715 A FI 964715A FI 964715 L FI964715 L FI 964715L
Authority
FI
Finland
Prior art keywords
cellulose pulp
bleaching cellulose
bleaching
pulp
cellulose
Prior art date
Application number
FI964715A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI964715A7 (en
FI964715A0 (en
Inventor
Agneta Fuhrmann
Original Assignee
Keskuslaboratorio
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 Keskuslaboratorio filed Critical Keskuslaboratorio
Priority to FI964715A priority Critical patent/FI964715L/en
Publication of FI964715A0 publication Critical patent/FI964715A0/en
Priority to EP97913227A priority patent/EP0946819A1/en
Priority to CA002270967A priority patent/CA2270967A1/en
Priority to AU50561/98A priority patent/AU5056198A/en
Priority to PCT/FI1997/000730 priority patent/WO1998023811A1/en
Publication of FI964715A7 publication Critical patent/FI964715A7/en
Publication of FI964715L publication Critical patent/FI964715L/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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)
FI964715A 1996-11-26 1996-11-26 Method for bleaching cellulose pulp FI964715L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI964715A FI964715L (en) 1996-11-26 1996-11-26 Method for bleaching cellulose pulp
EP97913227A EP0946819A1 (en) 1996-11-26 1997-11-26 Bleaching of cellulosic pulp with ozone and peracid
CA002270967A CA2270967A1 (en) 1996-11-26 1997-11-26 Bleaching of cellulosic pulp with ozone and peracid
AU50561/98A AU5056198A (en) 1996-11-26 1997-11-26 Bleaching of cellulosic pulp with ozone and peracid
PCT/FI1997/000730 WO1998023811A1 (en) 1996-11-26 1997-11-26 Bleaching of cellulosic pulp with ozone and peracid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI964715A FI964715L (en) 1996-11-26 1996-11-26 Method for bleaching cellulose pulp

Publications (3)

Publication Number Publication Date
FI964715A0 FI964715A0 (en) 1996-11-26
FI964715A7 FI964715A7 (en) 1998-05-27
FI964715L true FI964715L (en) 1998-05-27

Family

ID=8547143

Family Applications (1)

Application Number Title Priority Date Filing Date
FI964715A FI964715L (en) 1996-11-26 1996-11-26 Method for bleaching cellulose pulp

Country Status (5)

Country Link
EP (1) EP0946819A1 (en)
AU (1) AU5056198A (en)
CA (1) CA2270967A1 (en)
FI (1) FI964715L (en)
WO (1) WO1998023811A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI112958B (en) * 1997-12-19 2004-02-13 Kemira Oyj Process for bleaching of chemical pulp and using a bleaching solution
EP1101860A1 (en) * 1999-11-19 2001-05-23 Praxair Technology, Inc. Method for bleaching pulp with activated ozone
GB2382592A (en) * 2001-11-30 2003-06-04 Sca Hygiene Prod Gmbh Use of ozone to enhance the wet strength of fibrous cellulosic material
FI127996B (en) * 2016-07-01 2019-07-15 Kemira Oyj Process for treating cellulose
WO2019048698A1 (en) * 2017-09-11 2019-03-14 Kemira Oyj Process for treating pulp
RU2724362C1 (en) * 2019-07-04 2020-06-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет промышленных технологий и дизайна (СПбГУПТД)" Method of bleaching cellulose

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004974A3 (en) * 1991-06-06 1993-03-09 Interox Internat Sa Method for laundering and pasta delignification paper chemicals and application this method of laundering and the delignification of kraft pulp and pulp asam.
FR2692917A1 (en) * 1992-06-30 1993-12-31 Air Liquide Chemical pulp bleaching - using ozone followed by borohydride treatment, to avoid degradation during complementary bleaching step
US5387317A (en) * 1993-01-28 1995-02-07 The Mead Corporation Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US5411635A (en) * 1993-03-22 1995-05-02 The Research Foundation Of State University Of New York Ozone/peroxymonosulfate process for delignifying a lignocellulosic material
SE506480C2 (en) * 1995-06-29 1997-12-22 Sca Graphic Res Ab Bleaching of lignocellulosic fibrous material with ozone and peracid in a combination step

Also Published As

Publication number Publication date
FI964715A7 (en) 1998-05-27
CA2270967A1 (en) 1998-06-04
FI964715A0 (en) 1996-11-26
EP0946819A1 (en) 1999-10-06
WO1998023811A1 (en) 1998-06-04
AU5056198A (en) 1998-06-22

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Legal Events

Date Code Title Description
MA Patent expired