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SE9503004L - Blekning av massa - Google Patents

Blekning av massa

Info

Publication number
SE9503004L
SE9503004L SE9503004A SE9503004A SE9503004L SE 9503004 L SE9503004 L SE 9503004L SE 9503004 A SE9503004 A SE 9503004A SE 9503004 A SE9503004 A SE 9503004A SE 9503004 L SE9503004 L SE 9503004L
Authority
SE
Sweden
Prior art keywords
bleaching
pulp
value
peracetic acid
metals
Prior art date
Application number
SE9503004A
Other languages
Unknown language ( )
English (en)
Other versions
SE9503004D0 (sv
Inventor
Ulf Germgaard
Jonas Lindquist
Original Assignee
Sunds Defibrator Ind Ab
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 Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Priority to SE9503004A priority Critical patent/SE9503004L/sv
Publication of SE9503004D0 publication Critical patent/SE9503004D0/sv
Priority to BR9610198A priority patent/BR9610198A/pt
Priority to CA002229893A priority patent/CA2229893A1/en
Priority to EP96929609A priority patent/EP0847460A1/en
Priority to AU68926/96A priority patent/AU6892696A/en
Priority to PCT/SE1996/000997 priority patent/WO1997008381A1/en
Publication of SE9503004L publication Critical patent/SE9503004L/sv
Priority to NO980872A priority patent/NO980872D0/no

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
    • D21C9/1026—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
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE9503004A 1995-08-30 1995-08-30 Blekning av massa SE9503004L (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9503004A SE9503004L (sv) 1995-08-30 1995-08-30 Blekning av massa
BR9610198A BR9610198A (pt) 1995-08-30 1996-08-09 Processo no alvejamento de polpa
CA002229893A CA2229893A1 (en) 1995-08-30 1996-08-09 Method for preventing accumulation of metals in a closed pulp bleaching process
EP96929609A EP0847460A1 (en) 1995-08-30 1996-08-09 Method for preventing accumulation of metals in a closed pulp bleaching process
AU68926/96A AU6892696A (en) 1995-08-30 1996-08-09 Method for preventing accumulation of metals in a closed pulp bleaching process
PCT/SE1996/000997 WO1997008381A1 (en) 1995-08-30 1996-08-09 Method for preventing accumulation of metals in a closed pulp bleaching process
NO980872A NO980872D0 (no) 1995-08-30 1998-02-27 Fremgangsmåte for å forhindre akkumulering av metaller i en lukket masseblekingsprosess

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9503004A SE9503004L (sv) 1995-08-30 1995-08-30 Blekning av massa

Publications (2)

Publication Number Publication Date
SE9503004D0 SE9503004D0 (sv) 1995-08-30
SE9503004L true SE9503004L (sv) 1997-03-01

Family

ID=20399329

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9503004A SE9503004L (sv) 1995-08-30 1995-08-30 Blekning av massa

Country Status (7)

Country Link
EP (1) EP0847460A1 (sv)
AU (1) AU6892696A (sv)
BR (1) BR9610198A (sv)
CA (1) CA2229893A1 (sv)
NO (1) NO980872D0 (sv)
SE (1) SE9503004L (sv)
WO (1) WO1997008381A1 (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509444C2 (sv) * 1997-05-14 1999-01-25 Mo Och Domsjoe Ab Förfarande för minimering av kalcium orsakat inkrustproblem vid framställning av blekt cellulosamassa
SE511794C2 (sv) * 1997-06-30 1999-11-29 Sunds Defibrator Ind Ab Sätt att reducera halten kalcium i vätskefasen i en pappersmassasuspension
CA2310278A1 (en) * 1997-11-25 1999-06-03 Amylum Belgium N.V. Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions
FI117337B (sv) * 2004-12-16 2006-09-15 Kemira Oyj Förfarande för avlägsnande av mangan från vatten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9301160L (sv) * 1992-08-28 1994-03-01 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten
WO1994012722A1 (en) * 1992-11-27 1994-06-09 Eka Nobel Ab Process for bleaching of lignocellulose-containing pulp
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration

Also Published As

Publication number Publication date
SE9503004D0 (sv) 1995-08-30
BR9610198A (pt) 1999-06-29
NO980872L (no) 1998-02-27
WO1997008381A1 (en) 1997-03-06
CA2229893A1 (en) 1997-03-06
NO980872D0 (no) 1998-02-27
EP0847460A1 (en) 1998-06-17
AU6892696A (en) 1997-03-19

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Legal Events

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