FI970106A - Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen - Google Patents

Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen Download PDF

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Publication number
FI970106A
FI970106A FI970106A FI970106A FI970106A FI 970106 A FI970106 A FI 970106A FI 970106 A FI970106 A FI 970106A FI 970106 A FI970106 A FI 970106A FI 970106 A FI970106 A FI 970106A
Authority
FI
Finland
Prior art keywords
pulp
hydrogen peroxide
phase
reaction
residual
Prior art date
Application number
FI970106A
Other languages
English (en)
Swedish (sv)
Other versions
FI970106A0 (fi
Inventor
Gustavo L Bottan
Original Assignee
Beloit Technologies Inc
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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of FI970106A0 publication Critical patent/FI970106A0/fi
Publication of FI970106A publication Critical patent/FI970106A/fi

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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
    • D21C9/1026—Other features in bleaching processes
    • 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)
  • Detergent Compositions (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
FI970106A 1994-07-11 1997-01-10 Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen FI970106A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27355694A 1994-07-11 1994-07-11
PCT/US1995/008152 WO1996001922A1 (en) 1994-07-11 1995-06-28 Method for bleaching wood pulp using hydrogen peroxide

Publications (2)

Publication Number Publication Date
FI970106A0 FI970106A0 (fi) 1997-01-10
FI970106A true FI970106A (fi) 1997-01-10

Family

ID=23044429

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970106A FI970106A (fi) 1994-07-11 1997-01-10 Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen

Country Status (9)

Country Link
EP (1) EP0770158B1 (fi)
JP (1) JPH09508184A (fi)
AT (1) ATE172504T1 (fi)
BR (1) BR9508390A (fi)
CA (1) CA2194881A1 (fi)
DE (1) DE69505536D1 (fi)
FI (1) FI970106A (fi)
WO (1) WO1996001922A1 (fi)
ZA (1) ZA955190B (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106758446B (zh) * 2016-11-17 2018-03-06 鲁洪飞 一种环保制浆工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
FR2582692B1 (fr) * 1985-05-29 1987-12-11 Atochem Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
FR2661430B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement.

Also Published As

Publication number Publication date
BR9508390A (pt) 1997-10-28
EP0770158B1 (en) 1998-10-21
CA2194881A1 (en) 1996-01-25
ZA955190B (en) 1996-03-14
JPH09508184A (ja) 1997-08-19
WO1996001922A1 (en) 1996-01-25
EP0770158A1 (en) 1997-05-02
FI970106A0 (fi) 1997-01-10
ATE172504T1 (de) 1998-11-15
DE69505536D1 (de) 1998-11-26

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