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SE9002001L - METHOD FOR SUPPLYING WATER PEROXIDE IN CELLULOSA PENSIONS - Google Patents

METHOD FOR SUPPLYING WATER PEROXIDE IN CELLULOSA PENSIONS

Info

Publication number
SE9002001L
SE9002001L SE9002001A SE9002001A SE9002001L SE 9002001 L SE9002001 L SE 9002001L SE 9002001 A SE9002001 A SE 9002001A SE 9002001 A SE9002001 A SE 9002001A SE 9002001 L SE9002001 L SE 9002001L
Authority
SE
Sweden
Prior art keywords
cellulosa
pensions
supplying water
water peroxide
hydrogen peroxide
Prior art date
Application number
SE9002001A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9002001D0 (en
Inventor
S Meissl
Original Assignee
Waagner Biro Ag
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 Waagner Biro Ag filed Critical Waagner Biro Ag
Publication of SE9002001D0 publication Critical patent/SE9002001D0/en
Publication of SE9002001L publication Critical patent/SE9002001L/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
    • 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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

In a process for adding hydrogen peroxide solutions to wood pulp suspensions, in particular for the partial delignification of the wood pulp, the hydrogen peroxide solution is added in the low-consistency region in a simple apparatus; in addition, the joint introduction of H2O2 and oxygen is possible.
SE9002001A 1989-06-08 1990-06-05 METHOD FOR SUPPLYING WATER PEROXIDE IN CELLULOSA PENSIONS SE9002001L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT141089A AT392987B (en) 1989-06-08 1989-06-08 Process for adding hydrogen peroxide solution

Publications (2)

Publication Number Publication Date
SE9002001D0 SE9002001D0 (en) 1990-06-05
SE9002001L true SE9002001L (en) 1990-12-09

Family

ID=3513288

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002001A SE9002001L (en) 1989-06-08 1990-06-05 METHOD FOR SUPPLYING WATER PEROXIDE IN CELLULOSA PENSIONS

Country Status (2)

Country Link
AT (1) AT392987B (en)
SE (1) SE9002001L (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT175786B (en) * 1950-09-13 1953-08-10 Degussa Process for bleaching wood pulp and other mechanically produced fibers with peroxides
SE415581B (en) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab PROCEDURE FOR PEROCID WHITING OF HOG REPLACEMENT MASS
AT357258B (en) * 1978-05-31 1980-06-25 Zeman Hans COMPRESSED AIR STORAGE
DE3428352A1 (en) * 1984-08-01 1986-02-13 Degussa Ag, 6000 Frankfurt METHOD FOR DELIGNIFICATION AND BLEACHING OF CELLULAS

Also Published As

Publication number Publication date
AT392987B (en) 1991-07-25
ATA141089A (en) 1990-12-15
SE9002001D0 (en) 1990-06-05

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