SE466062B - Blekning av kemisk massa - Google Patents

Blekning av kemisk massa

Info

Publication number
SE466062B
SE466062B SE9001548A SE9001548A SE466062B SE 466062 B SE466062 B SE 466062B SE 9001548 A SE9001548 A SE 9001548A SE 9001548 A SE9001548 A SE 9001548A SE 466062 B SE466062 B SE 466062B
Authority
SE
Sweden
Prior art keywords
pulp
chlorine dioxide
amount
bleaching
hydrogen peroxide
Prior art date
Application number
SE9001548A
Other languages
English (en)
Swedish (sv)
Other versions
SE9001548L (sv
SE9001548D0 (sv
Inventor
P Aa Faernstrand
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 SE9001548A priority Critical patent/SE466062B/sv
Publication of SE9001548D0 publication Critical patent/SE9001548D0/xx
Priority to DE69102430T priority patent/DE69102430T2/de
Priority to BR919106390A priority patent/BR9106390A/pt
Priority to ES91908393T priority patent/ES2055602T3/es
Priority to CA002080242A priority patent/CA2080242A1/en
Priority to AU77427/91A priority patent/AU639335B2/en
Priority to JP91507954A priority patent/JPH05506698A/ja
Priority to EP91908393A priority patent/EP0527808B1/de
Priority to AT91908393T priority patent/ATE106962T1/de
Priority to US07/930,665 priority patent/US5589031A/en
Priority to PCT/SE1991/000178 priority patent/WO1991017306A1/en
Priority to NZ237528A priority patent/NZ237528A/xx
Priority to ZA912504A priority patent/ZA912504B/xx
Priority to PT97537A priority patent/PT97537B/pt
Publication of SE9001548L publication Critical patent/SE9001548L/
Publication of SE466062B publication Critical patent/SE466062B/sv
Priority to FI924889A priority patent/FI106215B/fi
Priority to NO924182A priority patent/NO179417C/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
    • D21C9/147—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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Lubricants (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Saccharide Compounds (AREA)
SE9001548A 1990-04-30 1990-04-30 Blekning av kemisk massa SE466062B (sv)

Priority Applications (16)

Application Number Priority Date Filing Date Title
SE9001548A SE466062B (sv) 1990-04-30 1990-04-30 Blekning av kemisk massa
BR919106390A BR9106390A (pt) 1990-04-30 1991-03-07 Processo para alvejamento de polpa quimica
AT91908393T ATE106962T1 (de) 1990-04-30 1991-03-07 Bleichen von chemischem zellstoff.
PCT/SE1991/000178 WO1991017306A1 (en) 1990-04-30 1991-03-07 Bleaching of chemical pulp
ES91908393T ES2055602T3 (es) 1990-04-30 1991-03-07 Blanqueo de pasta quimica.
CA002080242A CA2080242A1 (en) 1990-04-30 1991-03-07 Bleaching of chemical pulp
AU77427/91A AU639335B2 (en) 1990-04-30 1991-03-07 Bleaching of chemical pulp
JP91507954A JPH05506698A (ja) 1990-04-30 1991-03-07 ケミカルパルプの漂白法
EP91908393A EP0527808B1 (de) 1990-04-30 1991-03-07 Bleichen von chemischem zellstoff
DE69102430T DE69102430T2 (de) 1990-04-30 1991-03-07 Bleichen von chemischem zellstoff.
US07/930,665 US5589031A (en) 1990-04-30 1991-03-07 Chlorine dioxide bleaching of chemical pulp
NZ237528A NZ237528A (en) 1990-04-30 1991-03-21 Bleaching pulp with (1) clo 2 , (2) washing then addition of naoh, (3) o 2 and/or h 2 o 2 , (4) addition of acid, and then (5) clo 2
ZA912504A ZA912504B (en) 1990-04-30 1991-04-04 Bleaching of chemical pulp
PT97537A PT97537B (pt) 1990-04-30 1991-04-30 Processo de branqueamento de pasta quimica em pelo menos quatro passos
FI924889A FI106215B (fi) 1990-04-30 1992-10-28 Kemiallisen massan valkaisu
NO924182A NO179417C (no) 1990-04-30 1992-10-29 Bleking av kjemisk masse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9001548A SE466062B (sv) 1990-04-30 1990-04-30 Blekning av kemisk massa

Publications (3)

Publication Number Publication Date
SE9001548D0 SE9001548D0 (sv) 1990-04-30
SE9001548L SE9001548L (sv) 1991-10-31
SE466062B true SE466062B (sv) 1991-12-09

Family

ID=20379338

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9001548A SE466062B (sv) 1990-04-30 1990-04-30 Blekning av kemisk massa

Country Status (16)

Country Link
US (1) US5589031A (de)
EP (1) EP0527808B1 (de)
JP (1) JPH05506698A (de)
AT (1) ATE106962T1 (de)
AU (1) AU639335B2 (de)
BR (1) BR9106390A (de)
CA (1) CA2080242A1 (de)
DE (1) DE69102430T2 (de)
ES (1) ES2055602T3 (de)
FI (1) FI106215B (de)
NO (1) NO179417C (de)
NZ (1) NZ237528A (de)
PT (1) PT97537B (de)
SE (1) SE466062B (de)
WO (1) WO1991017306A1 (de)
ZA (1) ZA912504B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8257550B2 (en) 2008-02-28 2012-09-04 Metso Paper, Inc. Method of bleaching a pulp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6322768B1 (en) 1998-09-29 2001-11-27 International Paper Company Recovery of chlorine dioxide from gas streams
SE518692C2 (sv) * 2001-03-20 2002-11-05 Metso Paper Inc Blekning av massa med klordioxid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432574A1 (fr) * 1978-08-01 1980-02-29 Europeen Cellulose Procede de blanchiment de pate a papier
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
US4657633A (en) * 1985-05-24 1987-04-14 Westvaco Corporation Delignification and bleaching of a cellulose pulp with an alkalioxygen-hypochlorite single stage sequential extraction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8257550B2 (en) 2008-02-28 2012-09-04 Metso Paper, Inc. Method of bleaching a pulp

Also Published As

Publication number Publication date
SE9001548L (sv) 1991-10-31
WO1991017306A1 (en) 1991-11-14
NO924182D0 (no) 1992-10-29
NO924182L (no) 1992-10-29
NO179417C (no) 1996-10-02
FI924889A0 (fi) 1992-10-28
AU639335B2 (en) 1993-07-22
BR9106390A (pt) 1993-04-27
DE69102430T2 (de) 1994-09-29
ES2055602T3 (es) 1994-08-16
SE9001548D0 (sv) 1990-04-30
NO179417B (no) 1996-06-24
EP0527808A1 (de) 1993-02-24
FI924889A (fi) 1992-10-28
ZA912504B (en) 1992-01-29
JPH05506698A (ja) 1993-09-30
DE69102430D1 (de) 1994-07-14
CA2080242A1 (en) 1991-10-31
ATE106962T1 (de) 1994-06-15
PT97537A (pt) 1992-01-31
NZ237528A (en) 1993-06-25
FI106215B (fi) 2000-12-15
PT97537B (pt) 1998-08-31
AU7742791A (en) 1991-11-27
EP0527808B1 (de) 1994-06-08
US5589031A (en) 1996-12-31

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