BR112012012493A8 - método para o tratamento de fluxos de líquido em uma fábrica de pasta química - Google Patents

método para o tratamento de fluxos de líquido em uma fábrica de pasta química

Info

Publication number
BR112012012493A8
BR112012012493A8 BR112012012493A BR112012012493A BR112012012493A8 BR 112012012493 A8 BR112012012493 A8 BR 112012012493A8 BR 112012012493 A BR112012012493 A BR 112012012493A BR 112012012493 A BR112012012493 A BR 112012012493A BR 112012012493 A8 BR112012012493 A8 BR 112012012493A8
Authority
BR
Brazil
Prior art keywords
chemical pulp
stage
pulp mill
treating
dough
Prior art date
Application number
BR112012012493A
Other languages
English (en)
Other versions
BR112012012493A2 (pt
BR112012012493B1 (pt
Inventor
Jane Vehmaa
Olavi Pikka
Pekka Tervola
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=41395289&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112012012493(A8) "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 BR112012012493A2 publication Critical patent/BR112012012493A2/pt
Publication of BR112012012493A8 publication Critical patent/BR112012012493A8/pt
Publication of BR112012012493B1 publication Critical patent/BR112012012493B1/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
    • 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
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/083—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with inorganic compounds
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

pante de invenção:"método para o tratamento de fluxos de l´quido em uma fábrica de pasta química". a presente invenção refere-se a um método para tratar e utilizar os fluxos de líquido em uma fábrica de pasta química. o método compreende pelo menos os estágios a seguir: a) pasta química é produzida em um processo de cozimento alcalino; b) a massa marrom gerada no cozimento é tratada, o dito tratamento que compreende a lavagem da massa e, de prefer~encia, a deslignificação de oxigênio e a subsequente lavagem da massa; c) um processo de branqueamento para a massa marrom, a sequência de branqueamento que compreende pelo menos um estágio que usa o dióxido de cloro e adicionalmente pelo menos um estágio de brqanqueamento oxidante e que tem pelo menos dois estágios de lavagem para o tratamento da massa com os líquidos e para produzir os filtrados; e d) os filtrados do estágio c) são purificados em uma planta de tratamento de efluente da fábrica de pasta química, que compreende pelo menos o tratamento biológico para a obtenção do efuente purificado. o método compreende adicionalmente um estágio e), onde o efluente purificado com uma cor de 200 mg/l (cor r) ou mais e um valor de cod de mais de 150 mg/l é usado com o líquido de tratamento de pasta no estágio c).
BR112012012493-5A 2009-11-25 2010-11-22 método para o tratamento de fluxos de líquido em uma fábrica de pasta química BR112012012493B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20096243A FI126551B (fi) 2009-11-25 2009-11-25 Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
FI20096243 2009-11-25
PCT/FI2010/050943 WO2011064447A1 (en) 2009-11-25 2010-11-22 Method of treating liquid flows at a chemical pulp mill

Publications (3)

Publication Number Publication Date
BR112012012493A2 BR112012012493A2 (pt) 2016-04-12
BR112012012493A8 true BR112012012493A8 (pt) 2016-10-04
BR112012012493B1 BR112012012493B1 (pt) 2020-10-20

Family

ID=41395289

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012012493-5A BR112012012493B1 (pt) 2009-11-25 2010-11-22 método para o tratamento de fluxos de líquido em uma fábrica de pasta química

Country Status (9)

Country Link
US (1) US8815053B2 (pt)
CN (1) CN102666976B (pt)
AU (1) AU2010323001B2 (pt)
BR (1) BR112012012493B1 (pt)
CL (1) CL2012001343A1 (pt)
FI (1) FI126551B (pt)
SE (1) SE537408C2 (pt)
WO (1) WO2011064447A1 (pt)
ZA (1) ZA201203463B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2550393A2 (en) 2010-03-23 2013-01-30 International Paper Company Improved bctmp filtrate recycling system and method
FI128111B (en) * 2012-11-09 2019-10-15 Upm Kymmene Corp Method and apparatus for treating fluid streams in a cellulose plant
CN103266520B (zh) * 2013-05-14 2016-02-10 昆明理工大学 一种漂白草浆的制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE395920B (sv) 1975-12-19 1977-08-29 Uddeholms Ab Sett vid blekning och tvettning v cellulosamassa
AU619580B2 (en) * 1988-08-23 1992-01-30 Sappi Limited Elimination of bleach effluents
FI85293C (sv) * 1990-05-04 1992-03-25 Poeyry Jaakko & Co Oy Förfarande för rening och återföring av cellulosafabrikers blekeriavva tten
US5380402A (en) * 1992-07-30 1995-01-10 Kamyr, Inc. Reducing pulp mill liquid discharge
AUPM452794A0 (en) * 1994-03-17 1994-04-14 Amcor Limited Waste water recovery system
SE9604802L (sv) * 1996-12-27 1998-06-28 Aga Ab Förfarande för behandling av cellulosafibrer
FI117391B (fi) * 2000-05-16 2006-09-29 Andritz Oy Menetelmä ja laitteisto massan käsittelemiseksi
FI122812B (fi) * 2007-06-15 2012-07-13 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
FI20080298L (fi) * 2007-06-15 2009-10-22 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi ja käyttämiseksi sellutehtaalla
FI122241B (fi) 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan pesun yhteydessä sellutehtaalla

Also Published As

Publication number Publication date
FI126551B (fi) 2017-02-15
SE537408C2 (sv) 2015-04-21
BR112012012493A2 (pt) 2016-04-12
AU2010323001A1 (en) 2012-05-24
US8815053B2 (en) 2014-08-26
FI20096243A (fi) 2011-05-26
CN102666976A (zh) 2012-09-12
CN102666976B (zh) 2015-09-02
AU2010323001B2 (en) 2014-09-11
BR112012012493B1 (pt) 2020-10-20
US20120279669A1 (en) 2012-11-08
WO2011064447A1 (en) 2011-06-03
FI20096243A0 (sv) 2009-11-25
SE1250617A1 (sv) 2012-06-13
CL2012001343A1 (es) 2012-08-31
ZA201203463B (en) 2013-01-31

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/11/2010, OBSERVADAS AS CONDICOES LEGAIS.