ES2125699T3 - Procedimiento de lixiviacion. - Google Patents

Procedimiento de lixiviacion.

Info

Publication number
ES2125699T3
ES2125699T3 ES96201661T ES96201661T ES2125699T3 ES 2125699 T3 ES2125699 T3 ES 2125699T3 ES 96201661 T ES96201661 T ES 96201661T ES 96201661 T ES96201661 T ES 96201661T ES 2125699 T3 ES2125699 T3 ES 2125699T3
Authority
ES
Spain
Prior art keywords
chloride
potassium
recovery
boiler
recovery boiler
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.)
Expired - Lifetime
Application number
ES96201661T
Other languages
English (en)
Inventor
Johan Landfors
Roy Hammer-Olsen
Kimona Haggstrom
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.)
Nouryon Pulp and Performance Chemicals AB
Original Assignee
Eka Chemicals 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 Eka Chemicals AB filed Critical Eka Chemicals AB
Application granted granted Critical
Publication of ES2125699T3 publication Critical patent/ES2125699T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • 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
    • D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
    • D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Paper (AREA)
  • Saccharide Compounds (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Steroid Compounds (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

UN PROBLEMA CRECIENTE EN EL SISTEMA DE RECUPERACION QUIMICA DE FABRICACION DE PULPA, ES LA PRESENCIA DE CLORURO Y DE POTASIO EN LA CALDERA DE RECUPERACION. EL CLORURO Y EL POTASIO INCREMENTA ENTRE OTRAS COSAS LA VISCOSIDAD DE LOS DEPOSITOS SOBRANTES Y DE LAS PARTICULAS DE POLVO QUE SE DIRIGEN HACIA LOS TUBOS DE LA CALDERA DE RECUPERACION, LO QUE ACELERA EL ENSUCIAMIENTO, LA CORROSION Y EL TAPONAMIENTO DE LA CALDERA DE RECUPERACION. A MEDIDA QUE LA LEGISLACION MEDIO AMBIENTAL SE HACE MAS ESTRICTA, SE INCREMENTA EL GRADO DE CERRAMIENTO DEL SISTEMA. LA INVENCION SE REFIERE A UN PROCESO MEDIANTE EL CUAL EL POLVO PRECIPITANTE RECOGIDO (1) ES LIXIVADO (2), A UNA TEMPERATURA QUE EXCEDE DE LOS 50 (GRADOS) C, DURANTE UN TIEMPO DE RESIDENCIA SUFICIENTE PARA OBTENER UNA SOLUCION DE LIXIVACION ENRIQUECIDA EN CLORURO Y POTASIO (4) Y PARA ELIMINAR AL MENOS UNA PARTE DEL CONTENIDO DE IONES DE METAL EN UNA FASE SOLIDA (3). LA SOLUCION DE LIXIVACION SE TRATA ELECTROQUIMICAMENTE (5), PREFERIBLEMENTE EN UNA PILA DE ELECTRODIALISIS, PARA ELIMINAR AL MENOS UNA PARTE DEL CLORURO Y DEL POTASIO CONTENIDO EN LA MISMA. MEDIANTE EL SIGUIENTE PROCESO, PUEDE REDUCIRSE SUBSTANCIALMENTE EL PROBLEMA DE LOS DEPOSITOS VISCOSOS EN LA CALDERA DE RECUPERACION. ESTO SIGNIFICA UN USO EFICIENTEMENTE MEJORADO DE LA ENERGIA ASI COMO UN MAYOR GRADO DE RECUPERACION DE LOS PRODUCTOS QUIMICOS DE FABRICACION Y BLANQUEADO DE LA PULPA.
ES96201661T 1995-07-12 1996-06-14 Procedimiento de lixiviacion. Expired - Lifetime ES2125699T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9502583A SE9502583D0 (sv) 1995-07-12 1995-07-12 Leaching process

Publications (1)

Publication Number Publication Date
ES2125699T3 true ES2125699T3 (es) 1999-03-01

Family

ID=20398976

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96201661T Expired - Lifetime ES2125699T3 (es) 1995-07-12 1996-06-14 Procedimiento de lixiviacion.

Country Status (13)

Country Link
EP (1) EP0754799B1 (es)
JP (1) JP4131991B2 (es)
CN (1) CN1116476C (es)
AT (1) ATE174393T1 (es)
AU (1) AU688683B2 (es)
BR (1) BR9603013A (es)
CA (1) CA2180622C (es)
DE (1) DE69601110T2 (es)
ES (1) ES2125699T3 (es)
NO (1) NO319150B1 (es)
NZ (1) NZ286949A (es)
SE (1) SE9502583D0 (es)
ZA (1) ZA965807B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9603972D0 (sv) * 1996-10-31 1996-10-31 Kvaerner Pulping Tech Förfarande för framställning av aska bestående huvudsakligen av natriumsulfat från en sodapanna
SE9700012D0 (sv) * 1997-01-03 1997-01-03 Eka Chemicals Ab Recovery process in a pulp mill
US5980717A (en) * 1997-01-03 1999-11-09 Eka Chemical Ab Recovery process in a pulp mill
FI107253B (fi) * 1999-04-09 2001-06-29 Finnish Chemicals Oy Menetelmä lentotuhkan käsittelemiseksi
SE517587C2 (sv) * 2001-08-14 2002-06-25 Kvaerner Pulping Tech Förfarande för lakning av elfilteraska från en sodapanna
SE530373C3 (sv) * 2006-11-22 2008-06-10 Metso Power Ab Anordning och förfarande för urlakning av klorid och kalium ur elfilteraska
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
JP6179360B2 (ja) * 2013-11-12 2017-08-16 王子ホールディングス株式会社 回収ボイラ捕集灰の処理方法及び処理装置
JP6364745B2 (ja) * 2013-11-12 2018-08-01 王子ホールディングス株式会社 回収ボイラ捕集灰の処理方法及び処理装置
JP6398176B2 (ja) * 2013-11-12 2018-10-03 王子ホールディングス株式会社 回収ボイラ捕集灰の処理方法及び処理装置
SE1451569A1 (sv) * 2014-12-17 2015-12-01 Aprotech Engineering Ab Process for production of a fertilizer comprising potassium sulfate
CA3063821A1 (en) * 2017-06-05 2018-12-13 Suncarbon Ab Catalytic conversion of lignin
FR3072396B1 (fr) * 2017-10-12 2019-11-08 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Methode de traitement des cendres d'electrofiltres de la chaudiere de recuperation dans un procede kraft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1059271A (en) * 1974-02-21 1979-07-31 Erco Envirotech Ltd. Removal of sodium chloride from pulp mill systems
JPS5522051A (en) * 1978-08-02 1980-02-16 Tokuyama Soda Kk Desalting method
JPH02145885A (ja) * 1988-11-25 1990-06-05 Mitsubishi Heavy Ind Ltd ソーダ回収ボイラの灰詰り防止方法及びその装置
JP3143222B2 (ja) * 1992-08-21 2001-03-07 大王製紙株式会社 酸及びアルカリの製造方法
SE9202419D0 (sv) * 1992-08-24 1992-08-24 Eka Nobel Ab Reduction of chloride in pulping chemical recovery systems

Also Published As

Publication number Publication date
JPH09119086A (ja) 1997-05-06
BR9603013A (pt) 1998-05-05
DE69601110D1 (de) 1999-01-21
AU5838896A (en) 1997-01-23
AU688683B2 (en) 1998-03-12
CN1147483A (zh) 1997-04-16
JP4131991B2 (ja) 2008-08-13
CA2180622C (en) 2001-06-05
NO962918L (no) 1997-01-13
EP0754799A2 (en) 1997-01-22
ZA965807B (en) 1997-01-27
SE9502583D0 (sv) 1995-07-12
EP0754799A3 (en) 1997-03-26
NO319150B1 (no) 2005-06-27
ATE174393T1 (de) 1998-12-15
NZ286949A (en) 1997-09-22
CN1116476C (zh) 2003-07-30
EP0754799B1 (en) 1998-12-09
CA2180622A1 (en) 1997-01-13
DE69601110T2 (de) 1999-06-24
NO962918D0 (no) 1996-07-11

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