BR112012012493A2 - "método para o tratamento de fluxos de líquidos em uma fábrica de pasta química" - Google Patents
"método para o tratamento de fluxos de líquidos em uma fábrica de pasta química"Info
- Publication number
- BR112012012493A2 BR112012012493A2 BR112012012493A BR112012012493A BR112012012493A2 BR 112012012493 A2 BR112012012493 A2 BR 112012012493A2 BR 112012012493 A BR112012012493 A BR 112012012493A BR 112012012493 A BR112012012493 A BR 112012012493A BR 112012012493 A2 BR112012012493 A2 BR 112012012493A2
- Authority
- BR
- Brazil
- Prior art keywords
- chemical pulp
- stage
- pulp mill
- treating
- dough
- Prior art date
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).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20096243 | 2009-11-25 | ||
FI20096243A FI126551B (fi) | 2009-11-25 | 2009-11-25 | Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla |
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 true BR112012012493A2 (pt) | 2016-04-12 |
BR112012012493A8 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8753477B2 (en) * | 2010-03-23 | 2014-06-17 | International Paper Company | 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)
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 |
FI893844A (fi) * | 1988-08-23 | 1990-02-24 | Sappi Ltd | Eliminering av blekningsavloppsvaetskor. |
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 |
FI122241B (fi) * | 2007-06-15 | 2011-10-31 | Andritz Oy | Menetelmä massan pesun yhteydessä sellutehtaalla |
FI20080298L (fi) * | 2007-06-15 | 2009-10-22 | Andritz Oy | Menetelmä nestevirtojen käsittelemiseksi ja käyttämiseksi sellutehtaalla |
-
2009
- 2009-11-25 FI FI20096243A patent/FI126551B/fi active IP Right Review Request
-
2010
- 2010-11-22 SE SE1250617A patent/SE537408C2/sv not_active IP Right Cessation
- 2010-11-22 BR BR112012012493-5A patent/BR112012012493B1/pt active IP Right Grant
- 2010-11-22 WO PCT/FI2010/050943 patent/WO2011064447A1/en active Application Filing
- 2010-11-22 AU AU2010323001A patent/AU2010323001B2/en active Active
- 2010-11-22 CN CN201080053419.3A patent/CN102666976B/zh active Active
- 2010-11-22 US US13/512,220 patent/US8815053B2/en active Active
-
2012
- 2012-05-11 ZA ZA2012/03463A patent/ZA201203463B/en unknown
- 2012-05-24 CL CL2012001343A patent/CL2012001343A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
FI126551B (fi) | 2017-02-15 |
BR112012012493A8 (pt) | 2016-10-04 |
AU2010323001A1 (en) | 2012-05-24 |
CN102666976B (zh) | 2015-09-02 |
BR112012012493B1 (pt) | 2020-10-20 |
SE1250617A1 (sv) | 2012-06-13 |
WO2011064447A1 (en) | 2011-06-03 |
CN102666976A (zh) | 2012-09-12 |
AU2010323001B2 (en) | 2014-09-11 |
US8815053B2 (en) | 2014-08-26 |
FI20096243A (fi) | 2011-05-26 |
CL2012001343A1 (es) | 2012-08-31 |
ZA201203463B (en) | 2013-01-31 |
FI20096243A0 (sv) | 2009-11-25 |
US20120279669A1 (en) | 2012-11-08 |
SE537408C2 (sv) | 2015-04-21 |
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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. |