UY35127A - METHOD AND SYSTEM TO TREAT LIQUID FLOWS IN CHEMICAL PULP FACTORIES - Google Patents
METHOD AND SYSTEM TO TREAT LIQUID FLOWS IN CHEMICAL PULP FACTORIESInfo
- Publication number
- UY35127A UY35127A UY0001035127A UY35127A UY35127A UY 35127 A UY35127 A UY 35127A UY 0001035127 A UY0001035127 A UY 0001035127A UY 35127 A UY35127 A UY 35127A UY 35127 A UY35127 A UY 35127A
- Authority
- UY
- Uruguay
- Prior art keywords
- liquid flows
- pulp
- chemical
- chemical pulp
- factories
- 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
- 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)
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/65—Acid compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/045—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides in presence of O2 or O3
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
-
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
Esta invención se refiere a un método para tratar flujos de líquidos en fábricas de pulpa química. El método comprende producir pulpa sin blanquear e n una unidad de preparación de pulpa marrón (20), administrar el primer producto químico de acidificación al flujo de pulpa sin blanquear en una fas e de acidificación (26), con el fin de disolver al menos parte de los compuestos de fósforo en el flujo de pulpa sin blanquear, formar un filtrado qu e contiene compuestos de fósforo, extraer por lo menos una parte de dicho filtrado que contiene compuestos de fósforo del flujo de pulpa sin blanque ar en una etapa de extracción de fósforo (27), y blanquear la pulpa sin blanquear en una unidad de blanqueo (30). Además, la invención se refiere a un sistema para tratar flujos de líquidos en fábri cas de pulpa química.This invention relates to a method for treating liquid flows in chemical pulp factories. The method comprises producing unbleached pulp in a brown pulp preparation unit (20), administering the first acidification chemical to the unbleached pulp flow in an acidification fas e (26), in order to dissolve at least part of the phosphorus compounds in the unbleached pulp flow, forming a filtrate containing phosphorus compounds, extracting at least a portion of said filtrate containing phosphorus compounds from the unbleached pulp flow in an extraction stage of phosphorus (27), and bleach the unbleached pulp in a bleaching unit (30). In addition, the invention relates to a system for treating liquid flows in chemical pulp factories.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20126177A FI128111B (en) | 2012-11-09 | 2012-11-09 | A method and a system for treating liquid flows at a chemical pulp mill |
Publications (1)
Publication Number | Publication Date |
---|---|
UY35127A true UY35127A (en) | 2014-06-30 |
Family
ID=49619962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UY0001035127A UY35127A (en) | 2012-11-09 | 2013-11-07 | METHOD AND SYSTEM TO TREAT LIQUID FLOWS IN CHEMICAL PULP FACTORIES |
Country Status (6)
Country | Link |
---|---|
BR (1) | BR112015010402B1 (en) |
CL (1) | CL2015001236A1 (en) |
FI (1) | FI128111B (en) |
SE (1) | SE540757C2 (en) |
UY (1) | UY35127A (en) |
WO (1) | WO2014072584A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI127900B (en) * | 2014-05-27 | 2019-05-15 | Upm Kymmene Corp | A method for reducing phosphorus load in effluent from a pulp production process |
CN104404807A (en) * | 2014-09-23 | 2015-03-11 | 广西大学 | Method for reducing AOX forming amount in chlorine dioxide bleaching process of bagasse pulp |
FI130747B1 (en) * | 2019-02-01 | 2024-02-26 | Metsae Fibre Oy | Precipitating organic pollutants from aqueous liquids |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5938892A (en) * | 1991-01-28 | 1999-08-17 | Champion International Corporation | Process for recycling bleach plant filtrate |
FI126551B (en) * | 2009-11-25 | 2017-02-15 | Andritz Oy | A method for treating fluid flows at a pulp mill |
-
2012
- 2012-11-09 FI FI20126177A patent/FI128111B/en active IP Right Grant
-
2013
- 2013-11-07 UY UY0001035127A patent/UY35127A/en active IP Right Grant
- 2013-11-07 SE SE1550598A patent/SE540757C2/en unknown
- 2013-11-07 BR BR112015010402-9A patent/BR112015010402B1/en active IP Right Grant
- 2013-11-07 WO PCT/FI2013/051056 patent/WO2014072584A1/en active Application Filing
-
2015
- 2015-05-08 CL CL2015001236A patent/CL2015001236A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI20126177A (en) | 2014-05-10 |
CL2015001236A1 (en) | 2016-06-10 |
FI128111B (en) | 2019-10-15 |
BR112015010402A2 (en) | 2017-07-11 |
BR112015010402B1 (en) | 2021-11-16 |
SE540757C2 (en) | 2018-10-30 |
SE1550598A1 (en) | 2015-05-08 |
WO2014072584A1 (en) | 2014-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
110 | Patent granted |
Effective date: 20220811 |