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UY33432A - Método y disposición para lavar pasta química relacionados con un proceso de blanqueado - Google Patents

Método y disposición para lavar pasta química relacionados con un proceso de blanqueado

Info

Publication number
UY33432A
UY33432A UY0001033432A UY33432A UY33432A UY 33432 A UY33432 A UY 33432A UY 0001033432 A UY0001033432 A UY 0001033432A UY 33432 A UY33432 A UY 33432A UY 33432 A UY33432 A UY 33432A
Authority
UY
Uruguay
Prior art keywords
paste
provision
bleaching process
washing chemical
chemical paste
Prior art date
Application number
UY0001033432A
Other languages
English (en)
Spanish (es)
Inventor
Pikka Olavi
Marco Antonio De Andrade
Mariana De Bittencourt Grotzner
Ronny Adolfo Geiger
Tervola Peca
Original Assignee
Andritz Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42308101&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=UY33432(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of UY33432A publication Critical patent/UY33432A/es

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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating 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
    • 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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
UY0001033432A 2010-06-07 2011-06-06 Método y disposición para lavar pasta química relacionados con un proceso de blanqueado UY33432A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20105644A FI123299B (sv) 2010-06-07 2010-06-07 Förfarande och arrangemang för tvättning av massa i samband med blekning

Publications (1)

Publication Number Publication Date
UY33432A true UY33432A (es) 2012-01-31

Family

ID=42308101

Family Applications (1)

Application Number Title Priority Date Filing Date
UY0001033432A UY33432A (es) 2010-06-07 2011-06-06 Método y disposición para lavar pasta química relacionados con un proceso de blanqueado

Country Status (5)

Country Link
CN (1) CN102268830B (sv)
BR (1) BRPI1103082A2 (sv)
CL (1) CL2011001351A1 (sv)
FI (1) FI123299B (sv)
UY (1) UY33432A (sv)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US6569284B1 (en) * 1996-09-24 2003-05-27 International Paper Company Elemental-chlorine-free bleaching process having an initial Eo or Eop stage
CN100557123C (zh) * 2004-03-09 2009-11-04 徐守才 碱性亚硫酸钠法草浆的少氯漂白及中段水全封闭回用技术
JP2008184719A (ja) * 2007-01-31 2008-08-14 Daio Paper Corp 漂白工程前に酸処理工程を有するクラフトパルプの製造工程における酸処理工程排水の再利用方法

Also Published As

Publication number Publication date
FI20105644A (sv) 2011-12-08
FI123299B (sv) 2013-02-15
FI20105644A0 (sv) 2010-06-07
CN102268830A (zh) 2011-12-07
BRPI1103082A2 (pt) 2012-11-20
CN102268830B (zh) 2015-11-25
CL2011001351A1 (es) 2012-07-06

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Legal Events

Date Code Title Description
109 Application deemed to be withdrawn

Effective date: 20200807