EP2427598A4 - Process for improved leaching of electrostatic precipitator ash from a recovery boiler - Google Patents

Process for improved leaching of electrostatic precipitator ash from a recovery boiler

Info

Publication number
EP2427598A4
EP2427598A4 EP09846901.8A EP09846901A EP2427598A4 EP 2427598 A4 EP2427598 A4 EP 2427598A4 EP 09846901 A EP09846901 A EP 09846901A EP 2427598 A4 EP2427598 A4 EP 2427598A4
Authority
EP
European Patent Office
Prior art keywords
electrostatic precipitator
recovery boiler
precipitator ash
improved leaching
leaching
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP09846901.8A
Other languages
German (de)
French (fr)
Other versions
EP2427598A1 (en
EP2427598B1 (en
Inventor
Martin Wimby
Joana Nunes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet AB
Original Assignee
Metso Power AB
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 Metso Power AB filed Critical Metso Power AB
Publication of EP2427598A1 publication Critical patent/EP2427598A1/en
Publication of EP2427598A4 publication Critical patent/EP2427598A4/en
Application granted granted Critical
Publication of EP2427598B1 publication Critical patent/EP2427598B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • 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
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
EP09846901.8A 2009-05-06 2009-05-06 Process for improved leaching of electrostatic precipitator ash from a recovery boiler Active EP2427598B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2009/050493 WO2011002354A1 (en) 2009-05-06 2009-05-06 Process for improved leaching of electrostatic precipitator ash from a recovery boiler

Publications (3)

Publication Number Publication Date
EP2427598A1 EP2427598A1 (en) 2012-03-14
EP2427598A4 true EP2427598A4 (en) 2014-04-02
EP2427598B1 EP2427598B1 (en) 2016-01-06

Family

ID=43411247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09846901.8A Active EP2427598B1 (en) 2009-05-06 2009-05-06 Process for improved leaching of electrostatic precipitator ash from a recovery boiler

Country Status (4)

Country Link
EP (1) EP2427598B1 (en)
CN (1) CN102421961B (en)
BR (1) BRPI0924612B1 (en)
WO (1) WO2011002354A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8721837B2 (en) * 2012-07-26 2014-05-13 Veolia Water Solutions & Technologies North America, Inc. Method for recovering pulping chemicals and reducing the concentration of potassium and chloride therein
US9333468B2 (en) 2012-09-24 2016-05-10 Abengoa Bioenergy New Technologies, Llc Soak vessels and methods for impregnating biomass with liquid
FI126767B (en) 2012-11-16 2017-05-15 Andritz Oy Procedure for leaching ash from collection boiler
CN104631181B (en) * 2013-11-12 2018-09-25 王子控股株式会社 Recycle processing method and processing unit that boiler collects ash
SE538684C2 (en) * 2014-12-10 2016-10-18 Göran Hofstedt Anders Procedure and plant for washing raw soap
FI127615B (en) 2015-11-27 2018-10-31 Andritz Oy A method for treating recovery boiler ash
FI129103B (en) * 2017-04-28 2021-07-15 Andritz Oy Method for processing fly ash of a recovery boiler
FR3072396B1 (en) * 2017-10-12 2019-11-08 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude METHOD FOR TREATING ELECTROFILTER ASHES FROM THE RECOVERY BOILER IN A KRAFT PROCESS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016616A1 (en) * 2001-08-14 2003-02-27 Kvaerner Power Ab Process for leaching electrical filter ash from a recovery boiler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504374C2 (en) * 1994-10-20 1997-01-20 Kvaerner Pulping Tech Leakage of electric filter ash
JPH08170288A (en) * 1994-12-15 1996-07-02 Mitsubishi Heavy Ind Ltd Removal of sodium salt and potassium salt from caught ash of soda-recovering boiler
SE526435C2 (en) * 2001-09-28 2005-09-13 Skogsind Tekn Foskningsinst Recovery of pulping chemicals in alkaline sulfite pulping process and production of steam, by combusting hydrogen sulfide-containing gas in steam boiler, absorbing sulfur dioxide in sodium carbonate, and removing carbon dioxide
JP3683870B2 (en) * 2002-07-15 2005-08-17 太平洋セメント株式会社 Dust water washing system and dust water washing method
EP1798297A1 (en) * 2005-12-16 2007-06-20 CTU - Conzepte Technik Umwelt AG Process for the treatment of heavy-metal bearing dust

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016616A1 (en) * 2001-08-14 2003-02-27 Kvaerner Power Ab Process for leaching electrical filter ash from a recovery boiler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011002354A1 *

Also Published As

Publication number Publication date
EP2427598A1 (en) 2012-03-14
EP2427598B1 (en) 2016-01-06
CN102421961B (en) 2013-09-18
CN102421961A (en) 2012-04-18
BRPI0924612B1 (en) 2018-08-07
WO2011002354A1 (en) 2011-01-06
BRPI0924612A2 (en) 2016-08-30

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