FI950749A0 - Method for pre-treating peroxide bleached pulp Method for pretreating peroxide bleached pulp - Google Patents

Method for pre-treating peroxide bleached pulp Method for pretreating peroxide bleached pulp

Info

Publication number
FI950749A0
FI950749A0 FI950749A FI950749A FI950749A0 FI 950749 A0 FI950749 A0 FI 950749A0 FI 950749 A FI950749 A FI 950749A FI 950749 A FI950749 A FI 950749A FI 950749 A0 FI950749 A0 FI 950749A0
Authority
FI
Finland
Prior art keywords
bleached pulp
peroxide bleached
pretreating
treating
peroxide
Prior art date
Application number
FI950749A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI103817B (en
FI950749A (en
FI103817B1 (en
Inventor
Kaj Henricson
Olavi Pikka
Original Assignee
Ahlstroem Oy
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=8542888&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI950749(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of FI950749A0 publication Critical patent/FI950749A0/en
Priority to FI950749A priority Critical patent/FI103817B1/en
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to SE9502087A priority patent/SE516688E/en
Priority to FI953343A priority patent/FI103819B/en
Priority to US08/875,424 priority patent/US6736934B1/en
Priority to PCT/FI1996/000090 priority patent/WO1996025552A1/en
Priority to EP96902301A priority patent/EP0858526A1/en
Priority to CA002211223A priority patent/CA2211223C/en
Publication of FI950749A publication Critical patent/FI950749A/en
Publication of FI103817B publication Critical patent/FI103817B/en
Publication of FI103817B1 publication Critical patent/FI103817B1/en
Application granted granted Critical

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
    • D21C9/1005—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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI950749A 1995-02-17 1995-02-17 Process for pretreating pulp which is to be bleached with peroxide FI103817B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI950749A FI103817B1 (en) 1995-02-17 1995-02-17 Process for pretreating pulp which is to be bleached with peroxide
SE9502087A SE516688E (en) 1995-02-17 1995-06-07 Treatment of pulp before peroxide bleaching with acid and complexing agents
FI953343A FI103819B (en) 1995-02-17 1995-07-06 Method for pretreating pulp to be bleached with peroxide
US08/875,424 US6736934B1 (en) 1995-02-17 1996-02-16 Method of pretreating pulp in an acid tower prior to bleaching with peroxide
PCT/FI1996/000090 WO1996025552A1 (en) 1995-02-17 1996-02-16 Method of pretreating pulp to be bleached with peroxide
EP96902301A EP0858526A1 (en) 1995-02-17 1996-02-16 Method of pretreating pulp to be bleached with peroxide
CA002211223A CA2211223C (en) 1995-02-17 1996-02-16 Method of pretreating pulp to be bleached with peroxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI950749A FI103817B1 (en) 1995-02-17 1995-02-17 Process for pretreating pulp which is to be bleached with peroxide
FI950749 1995-02-17

Publications (4)

Publication Number Publication Date
FI950749A0 true FI950749A0 (en) 1995-02-17
FI950749A FI950749A (en) 1996-08-18
FI103817B FI103817B (en) 1999-09-30
FI103817B1 FI103817B1 (en) 1999-09-30

Family

ID=8542888

Family Applications (1)

Application Number Title Priority Date Filing Date
FI950749A FI103817B1 (en) 1995-02-17 1995-02-17 Process for pretreating pulp which is to be bleached with peroxide

Country Status (2)

Country Link
FI (1) FI103817B1 (en)
SE (1) SE516688E (en)

Also Published As

Publication number Publication date
FI103817B (en) 1999-09-30
SE9502087L (en) 1996-08-18
SE516688C2 (en) 2002-02-12
SE516688E (en) 2003-12-16
SE9502087D0 (en) 1995-06-07
FI950749A (en) 1996-08-18
FI103817B1 (en) 1999-09-30

Similar Documents

Publication Publication Date Title
FI944808A0 (en) Method for treating cellulosic pulps
AU4271596A (en) Process for treating refiner pulp
AU9249698A (en) Method for bleaching mechanical pulp
FI944928A0 (en) Method for bleaching chemical pulp
FI964499A0 (en) Method for producing delignified and bleached chemical pulps
FI964715A0 (en) Method for bleaching cellulose pulp
FI953343A0 (en) Method for pre-treating peroxide bleached pulp Method for pretreating peroxide bleached pulp
FI950749A0 (en) Method for pre-treating peroxide bleached pulp Method for pretreating peroxide bleached pulp
FI960972A (en) Method for bleaching lignocellulosic pulp
FI934056A0 (en) Method for bleaching pulp
FI974284A (en) Bleaching procedure for cellulose pulp
FI943333A (en) Method for bleaching lignocellulosic fibers
AU1474795A (en) Pulp bleaching method
BR9610198A (en) Pulp bleaching process
FI950785A0 (en) Method for bleaching pulp
AU8642698A (en) An improved method for bleaching pulp
ZA979999B (en) Method of pulp bleaching.
FI964863A0 (en) Method for bleaching kraft pulp
FI950200A (en) Method for bleaching pulp
FI943388A (en) Method for bleaching pulp
FI951196A0 (en) Method and apparatus for bleaching pulp and / Method and apparatus for bleaching and / or delignifying or delignifying pulp
FI971023A (en) Method for bleaching kraft pulp
EP0735180A3 (en) Method for treating fabrics containing cellulose
AU3411199A (en) Method for bleaching paper pulp
AU2348395A (en) Delignification and bleaching method for chemical paper pulp

Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: AHLSTROM MACHINERY OY

FCK Appeal rejected

Free format text: APPLICATION REJECTED