SE9202464D0 - Foerfarande foer behandling av processvatten - Google Patents

Foerfarande foer behandling av processvatten

Info

Publication number
SE9202464D0
SE9202464D0 SE9202464A SE9202464A SE9202464D0 SE 9202464 D0 SE9202464 D0 SE 9202464D0 SE 9202464 A SE9202464 A SE 9202464A SE 9202464 A SE9202464 A SE 9202464A SE 9202464 D0 SE9202464 D0 SE 9202464D0
Authority
SE
Sweden
Prior art keywords
pulp
process water
hydroperoxide
bleaching
ozone
Prior art date
Application number
SE9202464A
Other languages
English (en)
Other versions
SE9202464L (sv
SE500052C2 (sv
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 SE9202464A priority Critical patent/SE500052C2/sv
Publication of SE9202464D0 publication Critical patent/SE9202464D0/sv
Priority to SE9301160A priority patent/SE9301160L/sv
Priority to ZA935691A priority patent/ZA935691B/xx
Priority to EP93919744A priority patent/EP0656966B1/en
Priority to JP6507102A priority patent/JPH08500645A/ja
Priority to ES93919744T priority patent/ES2100563T3/es
Priority to DE69309938T priority patent/DE69309938T2/de
Priority to CA002139566A priority patent/CA2139566A1/en
Priority to NZ255613A priority patent/NZ255613A/en
Priority to PCT/SE1993/000660 priority patent/WO1994005850A1/en
Priority to AU49879/93A priority patent/AU665461B2/en
Priority to BR9306963A priority patent/BR9306963A/pt
Priority to AT93919744T priority patent/ATE151825T1/de
Priority to CN93116508A priority patent/CN1089578A/zh
Publication of SE9202464L publication Critical patent/SE9202464L/sv
Publication of SE500052C2 publication Critical patent/SE500052C2/sv
Priority to FI950882A priority patent/FI950882A0/sv
Priority to NO950752A priority patent/NO301724B1/no
Priority to US08/779,255 priority patent/US5741398A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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)
SE9202464A 1992-08-28 1992-08-28 Behandling av processvatten från blekning av massa innehållande metalljoner SE500052C2 (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE9202464A SE500052C2 (sv) 1992-08-28 1992-08-28 Behandling av processvatten från blekning av massa innehållande metalljoner
SE9301160A SE9301160L (sv) 1992-08-28 1993-04-07 Förfarande för behandling av processvatten
ZA935691A ZA935691B (en) 1992-08-28 1993-08-05 Method of treating process water.
AT93919744T ATE151825T1 (de) 1992-08-28 1993-08-11 Methode zum behandeln von abwässern
NZ255613A NZ255613A (en) 1992-08-28 1993-08-11 Treating process water to remove metal ions; contacting with lignocellulose pulp which is not to be bleached
AU49879/93A AU665461B2 (en) 1992-08-28 1993-08-11 Method of treating process water
ES93919744T ES2100563T3 (es) 1992-08-28 1993-08-11 Metodo de tratar aguas residuales de la industria papelera.
DE69309938T DE69309938T2 (de) 1992-08-28 1993-08-11 Methode zum behandeln von abwässern
CA002139566A CA2139566A1 (en) 1992-08-28 1993-08-11 Method of treating process water
EP93919744A EP0656966B1 (en) 1992-08-28 1993-08-11 Method of treating process water
PCT/SE1993/000660 WO1994005850A1 (en) 1992-08-28 1993-08-11 Method of treating process water
JP6507102A JPH08500645A (ja) 1992-08-28 1993-08-11 プロセス水処理方法
BR9306963A BR9306963A (pt) 1992-08-28 1993-08-11 Método de tratamento de água de processo
CN93116508A CN1089578A (zh) 1992-08-28 1993-08-19 处理生产用水的方法
FI950882A FI950882A0 (sv) 1992-08-28 1995-02-27 Metod för behandling av processvatten
NO950752A NO301724B1 (no) 1992-08-28 1995-02-27 Fremgangsmåte for behandling av prosessvann
US08/779,255 US5741398A (en) 1992-08-28 1997-01-03 Method of removing metal ions dissolved in the bleach plant waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9202464A SE500052C2 (sv) 1992-08-28 1992-08-28 Behandling av processvatten från blekning av massa innehållande metalljoner

Publications (3)

Publication Number Publication Date
SE9202464D0 true SE9202464D0 (sv) 1992-08-28
SE9202464L SE9202464L (sv) 1994-03-01
SE500052C2 SE500052C2 (sv) 1994-03-28

Family

ID=20387024

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202464A SE500052C2 (sv) 1992-08-28 1992-08-28 Behandling av processvatten från blekning av massa innehållande metalljoner

Country Status (2)

Country Link
SE (1) SE500052C2 (sv)
ZA (1) ZA935691B (sv)

Also Published As

Publication number Publication date
SE9202464L (sv) 1994-03-01
SE500052C2 (sv) 1994-03-28
ZA935691B (en) 1994-03-03

Similar Documents

Publication Publication Date Title
ATE2018T1 (de) Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.
ATE130888T1 (de) Verfahren zum bleichen von lignocellulose enthaltendem material.
NO175948C (no) Fremgangsmåte for behandling av lignocellulosemasse
FI941764A0 (sv) Förfarande för blekning av lignocellulosahaltig massa
ES2100563T3 (es) Metodo de tratar aguas residuales de la industria papelera.
ES2074670T3 (es) Procedimiento de preparacion de pastas de alto rendimiento, blanqueadas.
SE9202464D0 (sv) Foerfarande foer behandling av processvatten
SE9301161D0 (sv) Foerfarande foer behandling av processvatten
NO302187B1 (no) Fremgangsmåte ved behandling av en cellulosemasse
SE9203200L (sv) Förfarande för blekning av lignocellulosahaltig massa
SE9002039D0 (sv) Saett att framstaella massa
NO161663C (no) Treforedlingsmiddete ti forbedre tre virkekvalitet.
SU931876A1 (ru) Способ переработки черного щелока сульфатного производства целлюлозы
ES2075381T3 (es) Procedimiento de tratamiento de aguas recicladas destinadas a diluir una pasta de papel.
TH18059EX (th) วิธีการบำบัดน้ำจากกรรมวิธี
RU2118675C1 (ru) Способ отбелки лиственной сульфатной целлюлозы
TH18059A (th) วิธีการบำบัดน้ำจากกรรมวิธี
SE9603630D0 (sv) Förfarande för blekning av massa