BR9406105A - Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose - Google Patents

Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose

Info

Publication number
BR9406105A
BR9406105A BR9406105A BR9406105A BR9406105A BR 9406105 A BR9406105 A BR 9406105A BR 9406105 A BR9406105 A BR 9406105A BR 9406105 A BR9406105 A BR 9406105A BR 9406105 A BR9406105 A BR 9406105A
Authority
BR
Brazil
Prior art keywords
bleaching
pulp
cellulose
water treatment
metal ions
Prior art date
Application number
BR9406105A
Other languages
English (en)
Inventor
Ulf Germgard
Solveig Norden
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
Publication of BR9406105A publication Critical patent/BR9406105A/pt

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Removal Of Specific Substances (AREA)
  • Paper (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Physical Water Treatments (AREA)
BR9406105A 1993-04-07 1994-02-17 Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose BR9406105A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301161A SE9301161L (sv) 1993-04-07 1993-04-07 Förfarande för behandling av processvatten
PCT/SE1994/000130 WO1994023122A1 (en) 1993-04-07 1994-02-17 Method of treating process water

Publications (1)

Publication Number Publication Date
BR9406105A true BR9406105A (pt) 1995-12-12

Family

ID=20389509

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9406105A BR9406105A (pt) 1993-04-07 1994-02-17 Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose

Country Status (12)

Country Link
EP (1) EP0693144A1 (pt)
JP (1) JPH08508546A (pt)
CN (1) CN1120358A (pt)
AU (1) AU672501B2 (pt)
BR (1) BR9406105A (pt)
CA (1) CA2160123A1 (pt)
FI (1) FI954766A0 (pt)
NO (1) NO953993D0 (pt)
NZ (1) NZ263264A (pt)
SE (1) SE9301161L (pt)
WO (1) WO1994023122A1 (pt)
ZA (1) ZA941235B (pt)

Families Citing this family (8)

* 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
SE504424C2 (sv) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska
US5792315A (en) * 1995-02-27 1998-08-11 Eka Chemicals Ab Purifying aqueous effluent from a pulp mill using electro chemical membrane device
SE9500732L (sv) * 1995-02-27 1996-08-28 Eka Chemicals Ab Förfarande för behandling av vätskor
SE9803384L (sv) 1998-03-02 1999-09-03 Kemira Kemi Ab Förfarande för behandling av processvatten
AP3994A (en) * 2008-12-19 2017-01-11 Xyleco Inc Processing biomass
US20100263813A1 (en) * 2009-04-21 2010-10-21 Andritz Inc. Green liquor pretreatment of lignocellulosic material
CN103180506A (zh) * 2011-09-19 2013-06-26 北京沃特玛德环境技术股份有限公司 造纸工业碱回收固体废渣综合利用的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684472A (en) * 1985-12-26 1987-08-04 Phillips Petroleum Company Precipitation of waste chromium compounds utilizing an aqueous sulfide solution
DE58902905D1 (de) * 1989-04-28 1993-01-14 Siemens Ag Verfahren zum entfernen von kupfer aus abwasser.
US5120448A (en) * 1990-09-19 1992-06-09 Dorica Josesph G Removal of aox frm bleach plant mill effluents by ph shift using the alkalinity/acidity sources available at the mill
EP0564443A1 (en) * 1992-03-15 1993-10-06 Kamyr, Inc. Treatment of bleach plant filtrates

Also Published As

Publication number Publication date
NO953993L (no) 1995-10-06
CN1120358A (zh) 1996-04-10
EP0693144A1 (en) 1996-01-24
FI954766A7 (fi) 1995-10-06
NZ263264A (en) 1996-08-27
JPH08508546A (ja) 1996-09-10
FI954766L (fi) 1995-10-06
CA2160123A1 (en) 1994-10-13
SE9301161D0 (sv) 1993-04-07
SE9301161L (sv) 1994-10-08
AU6387694A (en) 1994-10-24
WO1994023122A1 (en) 1994-10-13
FI954766A0 (fi) 1995-10-06
ZA941235B (en) 1994-09-20
AU672501B2 (en) 1996-10-03
NO953993D0 (no) 1995-10-06

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law