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SE8604459L - Styrning av peroxidblekning av olika massor - Google Patents

Styrning av peroxidblekning av olika massor

Info

Publication number
SE8604459L
SE8604459L SE8604459A SE8604459A SE8604459L SE 8604459 L SE8604459 L SE 8604459L SE 8604459 A SE8604459 A SE 8604459A SE 8604459 A SE8604459 A SE 8604459A SE 8604459 L SE8604459 L SE 8604459L
Authority
SE
Sweden
Prior art keywords
stage
pct
bleaching
chemicals
control
Prior art date
Application number
SE8604459A
Other languages
English (en)
Other versions
SE8604459D0 (sv
SE455203B (sv
Inventor
J Hook
G Akerlund
Original Assignee
Eka Nobel 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 Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE8604459A priority Critical patent/SE455203B/sv
Publication of SE8604459D0 publication Critical patent/SE8604459D0/sv
Priority to DE8787907030T priority patent/DE3783604T2/de
Priority to JP62506507A priority patent/JPS63502522A/ja
Priority to PCT/SE1987/000467 priority patent/WO1988002796A1/en
Priority to AT87907030T priority patent/ATE84582T1/de
Priority to EP87907030A priority patent/EP0287626B1/en
Priority to US07/210,281 priority patent/US4878998A/en
Priority to BR8707508A priority patent/BR8707508A/pt
Priority to CA000549679A priority patent/CA1277109C/en
Publication of SE8604459L publication Critical patent/SE8604459L/sv
Priority to FI882769A priority patent/FI89517C/sv
Priority to NO882681A priority patent/NO165206C/no
Publication of SE455203B publication Critical patent/SE455203B/sv

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
    • D21C9/16—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)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Dental Preparations (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Stereophonic System (AREA)
  • Synchronizing For Television (AREA)
SE8604459A 1986-10-20 1986-10-20 Forfarande for styrning av peroxidblekning av massa SE455203B (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE8604459A SE455203B (sv) 1986-10-20 1986-10-20 Forfarande for styrning av peroxidblekning av massa
BR8707508A BR8707508A (pt) 1986-10-20 1987-10-14 Controle do alvejamento com peroxido de diferentes polpas
AT87907030T ATE84582T1 (de) 1986-10-20 1987-10-14 Regelung der peroxidbleiche verschiedener papierfaserstoffe.
JP62506507A JPS63502522A (ja) 1986-10-20 1987-10-14 各種パルプの過酸化物による漂白の制御
PCT/SE1987/000467 WO1988002796A1 (en) 1986-10-20 1987-10-14 Control of peroxide bleaching of different pulpes
DE8787907030T DE3783604T2 (de) 1986-10-20 1987-10-14 Regelung der peroxidbleiche verschiedener papierfaserstoffe.
EP87907030A EP0287626B1 (en) 1986-10-20 1987-10-14 Control of peroxide bleaching of different pulps
US07/210,281 US4878998A (en) 1986-10-20 1987-10-14 Method for controlling peroxide bleaching in a plurality of bleaching stages
CA000549679A CA1277109C (en) 1986-10-20 1987-10-20 Control of peroxide bleaching of different pulps
FI882769A FI89517C (sv) 1986-10-20 1988-06-10 Styrning av peroxidblekning av olika trämassor
NO882681A NO165206C (no) 1986-10-20 1988-06-16 Fremgangsmaate ved kontroll av peroksydbleking.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8604459A SE455203B (sv) 1986-10-20 1986-10-20 Forfarande for styrning av peroxidblekning av massa

Publications (3)

Publication Number Publication Date
SE8604459D0 SE8604459D0 (sv) 1986-10-20
SE8604459L true SE8604459L (sv) 1988-04-21
SE455203B SE455203B (sv) 1988-06-27

Family

ID=20366000

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8604459A SE455203B (sv) 1986-10-20 1986-10-20 Forfarande for styrning av peroxidblekning av massa

Country Status (11)

Country Link
US (1) US4878998A (sv)
EP (1) EP0287626B1 (sv)
JP (1) JPS63502522A (sv)
AT (1) ATE84582T1 (sv)
BR (1) BR8707508A (sv)
CA (1) CA1277109C (sv)
DE (1) DE3783604T2 (sv)
FI (1) FI89517C (sv)
NO (1) NO165206C (sv)
SE (1) SE455203B (sv)
WO (1) WO1988002796A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp
FR2746091B1 (fr) * 1996-03-18 1998-04-30 Procede et installation de fourniture de peroxyde d'hydrogene a debit variable
US6023065A (en) * 1997-03-10 2000-02-08 Alberta Research Council Method and apparatus for monitoring and controlling characteristics of process effluents
US6153050A (en) * 1998-03-24 2000-11-28 Noranda Forest Inc. Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage
CA2377775A1 (fr) * 2002-03-18 2003-09-18 Gilles Bouchard Procede de fabrication de papier couche de grades cfs#3, cfs#4 et cgw #4 a partir de pate thermomecanique a bas indice d'egouttement et a haute blancheur
FI122238B (sv) * 2006-02-09 2011-10-31 Metso Automation Oy Förfarande och anordning för att bestämma massasuspensionens totalperoxidhalt
JP5471050B2 (ja) * 2009-06-09 2014-04-16 三菱瓦斯化学株式会社 Ｔｃｆ漂白方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729375A (en) * 1970-05-01 1973-04-24 Int Paper Co Meter for measuring brightness of bleached fibers and controlling the bleaching process
FI47786C (sv) * 1972-02-28 1974-03-11 Neste Oy Förfarande för automatisk reglering av en blekningsprocess för cellulo sa.
US4013506A (en) * 1974-07-22 1977-03-22 Canadian International Paper Company Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching
US4192708A (en) * 1974-09-05 1980-03-11 Mo Och Domsjo Aktiebolag Method for controlling the addition of active chemical for delignifying and/or bleaching cellulose pulp suspended in a liquor containing chemicals reactive with the delignifying and/or bleaching chemical
SE384884C (sv) * 1974-09-05 1986-04-14 Mo Och Domsjoe Ab Forfarande for reglering av tillforseln av reaktionskemikalier vid delignifiering och/eller blekning av massa
SE413684C (sv) * 1974-09-23 1987-05-18 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa
SE452346C (sv) * 1982-12-17 1990-03-26 Sunds Defibrator Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
EP0191756B1 (en) * 1985-02-15 1989-01-04 Kamyr Ab Multi peroxide stage mechanical pulp bleaching

Also Published As

Publication number Publication date
BR8707508A (pt) 1989-02-21
NO882681L (no) 1988-06-16
DE3783604T2 (de) 1993-07-01
EP0287626B1 (en) 1993-01-13
US4878998A (en) 1989-11-07
WO1988002796A1 (en) 1988-04-21
SE8604459D0 (sv) 1986-10-20
NO165206C (no) 1991-01-09
CA1277109C (en) 1990-12-04
SE455203B (sv) 1988-06-27
NO882681D0 (no) 1988-06-16
FI882769A (fi) 1988-06-10
NO165206B (no) 1990-10-01
FI89517B (fi) 1993-06-30
JPS63502522A (ja) 1988-09-22
ATE84582T1 (de) 1993-01-15
FI89517C (sv) 1993-10-11
FI882769A0 (fi) 1988-06-10
DE3783604D1 (de) 1993-02-25
EP0287626A1 (en) 1988-10-26

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SE8604459D0 (sv) Styrning av peroxidblekning av olika massor
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