WO2009142681A3 - Procédé et appareil de traitement de la liqueur verte - Google Patents

Procédé et appareil de traitement de la liqueur verte Download PDF

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Publication number
WO2009142681A3
WO2009142681A3 PCT/US2009/002073 US2009002073W WO2009142681A3 WO 2009142681 A3 WO2009142681 A3 WO 2009142681A3 US 2009002073 W US2009002073 W US 2009002073W WO 2009142681 A3 WO2009142681 A3 WO 2009142681A3
Authority
WO
WIPO (PCT)
Prior art keywords
green liquor
dregs
treating
treating green
filtration vessel
Prior art date
Application number
PCT/US2009/002073
Other languages
English (en)
Other versions
WO2009142681A2 (fr
Inventor
Peter Flanagan
Original Assignee
Flsmidth A/S
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 Flsmidth A/S filed Critical Flsmidth A/S
Priority to CA2724395A priority Critical patent/CA2724395A1/fr
Priority to CN2009801185981A priority patent/CN102066656A/zh
Priority to EP09750912.9A priority patent/EP2382353A4/fr
Priority to BRPI0912322A priority patent/BRPI0912322A2/pt
Publication of WO2009142681A2 publication Critical patent/WO2009142681A2/fr
Publication of WO2009142681A3 publication Critical patent/WO2009142681A3/fr

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
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Paper (AREA)

Abstract

L’invention concerne un procédé et un appareil de traitement d’un flux de liqueur verte produit dans un procédé de pâte kraft, afin de séparer la liqueur verte des lies présentes dans le flux en utilisant un récipient de filtration ayant un différentiel de pression entre l’entrée et la sortie de liqueur verte, afin d’entraîner les lies de la liqueur verte. En outre, une pression négative est utilisée dans le récipient de filtration pour entraîner ainsi la vapeur d’eau, puis refroidir la liqueur verte filtrée.
PCT/US2009/002073 2008-05-22 2009-04-02 Procédé et appareil de traitement de la liqueur verte WO2009142681A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2724395A CA2724395A1 (fr) 2008-05-22 2009-04-02 Procede et appareil de traitement de la liqueur verte
CN2009801185981A CN102066656A (zh) 2008-05-22 2009-04-02 处理绿液的方法和设备
EP09750912.9A EP2382353A4 (fr) 2008-05-22 2009-04-02 Procédé et appareil de traitement de la liqueur verte
BRPI0912322A BRPI0912322A2 (pt) 2008-05-22 2009-04-02 método de tratamento de um fluxo; método de tratamento de um fluxo do licor verde e aparelho para uso em um processo de recausticação para separar licor verde a partir de borras

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/154,356 2008-05-22
US12/154,356 US20090288790A1 (en) 2008-05-22 2008-05-22 Process and apparatus for treating green liquor

Publications (2)

Publication Number Publication Date
WO2009142681A2 WO2009142681A2 (fr) 2009-11-26
WO2009142681A3 true WO2009142681A3 (fr) 2010-01-14

Family

ID=41340711

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/002073 WO2009142681A2 (fr) 2008-05-22 2009-04-02 Procédé et appareil de traitement de la liqueur verte

Country Status (6)

Country Link
US (1) US20090288790A1 (fr)
EP (1) EP2382353A4 (fr)
CN (1) CN102066656A (fr)
BR (1) BRPI0912322A2 (fr)
CA (1) CA2724395A1 (fr)
WO (1) WO2009142681A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126767B (en) * 2012-11-16 2017-05-15 Andritz Oy Method for extracting the ash from a recovery boiler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5607549A (en) * 1994-06-17 1997-03-04 Ahlstrom Machinery Corporation Method for the manufacture of cooking liquors of different sulphidity by green liquor crystallization
US5618443A (en) * 1995-05-04 1997-04-08 Ahlstrom Machinery Oy Clarification of green liquor by falling film cross-flow filtration
US20070131363A1 (en) * 2005-10-24 2007-06-14 Andritz Inc. Fiberline systems, processes and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5607549A (en) * 1994-06-17 1997-03-04 Ahlstrom Machinery Corporation Method for the manufacture of cooking liquors of different sulphidity by green liquor crystallization
US5618443A (en) * 1995-05-04 1997-04-08 Ahlstrom Machinery Oy Clarification of green liquor by falling film cross-flow filtration
US20070131363A1 (en) * 2005-10-24 2007-06-14 Andritz Inc. Fiberline systems, processes and methods

Also Published As

Publication number Publication date
US20090288790A1 (en) 2009-11-26
EP2382353A2 (fr) 2011-11-02
EP2382353A4 (fr) 2013-06-12
WO2009142681A2 (fr) 2009-11-26
CA2724395A1 (fr) 2009-11-26
CN102066656A (zh) 2011-05-18
BRPI0912322A2 (pt) 2017-06-06

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