ES2069254T3 - Procedimiento de tratamiento por via humeda de brascas usadas procedentes de cubas de electrolisis hall-heroult. - Google Patents

Procedimiento de tratamiento por via humeda de brascas usadas procedentes de cubas de electrolisis hall-heroult.

Info

Publication number
ES2069254T3
ES2069254T3 ES91420402T ES91420402T ES2069254T3 ES 2069254 T3 ES2069254 T3 ES 2069254T3 ES 91420402 T ES91420402 T ES 91420402T ES 91420402 T ES91420402 T ES 91420402T ES 2069254 T3 ES2069254 T3 ES 2069254T3
Authority
ES
Spain
Prior art keywords
bras
hall
suspension
treatment procedure
wet treatment
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
ES91420402T
Other languages
English (en)
Inventor
Jean-Claude Bontron
Pierre-Bernard Personnet
Jean-Michel Lamerant
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Application granted granted Critical
Publication of ES2069254T3 publication Critical patent/ES2069254T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/35—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by hydrolysis
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/45—Inorganic substances containing nitrogen or phosphorus
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/49—Inorganic substances containing halogen
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2203/00—Aspects of processes for making harmful chemical substances harmless, or less harmful, by effecting chemical change in the substances
    • A62D2203/02—Combined processes involving two or more distinct steps covered by groups A62D3/10 - A62D3/40

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

EL PROCESO DE TRATAMIENTO DE LOS REVESTIMIENTOS REFRACTARIOS USADOS IMPREGNADOS DE PRODUCTOS FLUORADOS Y DE CIANUROS ALCALINOS QUE COMPRENDE UNA TRITURACION DE LOS REVESTIMIENTOS REFRACTARIOS PREVIAMENTE MACHACADOS EN PRESENCIA DE CAL, LA PUESTA EN SUSPENSION EN MEDIO ACUOSO DE LOS PRODUCTOS ASI TRITURADOS PARA PRECIPITAR EL FLUJO EN FORMA DE CAF SUB 2 CON LIBERACION DE SOSA, Y DESPUES EL CALENTAMIENTO DE LA SUSPENSION A UNA TEMPERATURA T > 140 C EN PRESENCIA DE ARCILLA PARA FORMAR TRAS FIJACION DE LA SOSA LIBRE DE LOS COMPUESTOS DE SINTESIS INSOLUBLES DEL TIPO FELDESPATOIDE O ZEOLITA, Y POR FIN LA SEPARACION POR FILTRACION DE LA FASE SOLIDA RESULTANTE QUE PUEDE DESCARGARSE, DE LA FASE LIQUIDA QUE SE RECICLA PARA FORMAR EN PARTICULAR UNA NUEVA SUSPENSION DE REVESTIMIENTO REFRACTORIO TRITURADO.
ES91420402T 1990-11-16 1991-11-14 Procedimiento de tratamiento por via humeda de brascas usadas procedentes de cubas de electrolisis hall-heroult. Expired - Lifetime ES2069254T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9014825A FR2669350B1 (fr) 1990-11-16 1990-11-16 Procede de traitement par voie humide de brasquages uses provenant de cuves d'electrolyse hall-heroult.

Publications (1)

Publication Number Publication Date
ES2069254T3 true ES2069254T3 (es) 1995-05-01

Family

ID=9402646

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91420402T Expired - Lifetime ES2069254T3 (es) 1990-11-16 1991-11-14 Procedimiento de tratamiento por via humeda de brascas usadas procedentes de cubas de electrolisis hall-heroult.

Country Status (12)

Country Link
US (1) US5245116A (es)
EP (1) EP0486410B1 (es)
AU (1) AU632717B2 (es)
CA (1) CA2055135A1 (es)
DE (1) DE69107796T2 (es)
ES (1) ES2069254T3 (es)
FR (1) FR2669350B1 (es)
GR (1) GR3015282T3 (es)
IS (1) IS3779A7 (es)
NO (1) NO178363C (es)
NZ (1) NZ240534A (es)
ZA (1) ZA919066B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2306618A1 (es) * 2008-04-04 2008-11-01 Xiloga, S.L Procedimiento de reciclado de spent pot linings (spls) procedentes de la produccion de aluminio primario.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002263A1 (en) * 1992-07-24 1994-02-03 Comalco Aluminium Limited Treatment of solid material
US5470559A (en) * 1993-02-26 1995-11-28 Alcan International Limited Recycling of spent pot linings
US5558690A (en) * 1994-12-23 1996-09-24 Vortec Corporation Manufacture of ceramic tiles from spent aluminum potlining
US5538604A (en) * 1995-01-20 1996-07-23 Emec Consultants Suppression of cyanide formation in electrolytic cell lining
AU2445397A (en) * 1996-04-09 1997-10-29 Vortec Corporation Manufacture of ceramic tiles from fly ash
FR2756198B1 (fr) * 1996-11-26 1998-12-18 Pechiney Aluminium Procede d'insolubilisation et de consolidation de brasques usees provenant des cuves d'electrolyse hall-heroult
AU6026198A (en) * 1997-01-14 1998-08-03 Joseph B. Cashman Detoxifying aluminum spent potliners
CA2588929A1 (fr) * 2007-05-11 2008-11-11 Institut National De La Recherche Scientifique (Inrs) Procede de traitement des dechets d'aluminerie contamines par des hydrocarbures aromatiques polycycliques (hap) et des fluorures
US20110081284A1 (en) * 2009-10-02 2011-04-07 Mark Weaver Treatment of bauxite residue and spent pot lining
US20140041560A1 (en) * 2012-08-09 2014-02-13 Alcoa Inc. High carbon spent pot lining and methods of fueling a furnace with the same
CN113426808B (zh) * 2021-06-29 2022-05-17 云南云铝润鑫铝业有限公司 一种铝电解大修渣加压碱浸回收氟化盐的方法
CN113426807B (zh) * 2021-06-29 2022-05-17 云南云铝润鑫铝业有限公司 铝电解危废渣联合处理和资源综合利用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113831A (en) * 1975-10-02 1978-09-12 National Fluoride And Chemical Corporation Recovery of sodium fluoride and other chemicals from spent carbon liners
US4113832A (en) * 1977-11-28 1978-09-12 Kaiser Aluminum & Chemical Corporation Process for the utilization of waste materials from electrolytic aluminum reduction systems
GB2056425A (en) * 1979-08-06 1981-03-18 Alcan Res & Dev Treatment of wastes containing water-leachable fluorides
US4447740A (en) * 1979-11-08 1984-05-08 Heck Louis J Wave responsive generator
GB8301974D0 (en) * 1983-01-25 1983-02-23 Alcan Int Ltd Aluminium fluoride from scrap
GB8305583D0 (en) * 1983-03-01 1983-03-30 Alcan Int Ltd Treatment of scrap lining material
US4889695A (en) * 1985-02-20 1989-12-26 Aluminum Company Of America Reclaiming spent potlining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2306618A1 (es) * 2008-04-04 2008-11-01 Xiloga, S.L Procedimiento de reciclado de spent pot linings (spls) procedentes de la produccion de aluminio primario.

Also Published As

Publication number Publication date
NO914367L (no) 1992-05-18
DE69107796D1 (de) 1995-04-06
IS3779A7 (is) 1992-05-17
EP0486410B1 (fr) 1995-03-01
GR3015282T3 (en) 1995-06-30
EP0486410A1 (fr) 1992-05-20
NO178363B (no) 1995-12-04
DE69107796T2 (de) 1995-06-29
NZ240534A (en) 1994-05-26
ZA919066B (en) 1992-08-26
AU632717B2 (en) 1993-01-07
FR2669350B1 (fr) 1993-01-15
US5245116A (en) 1993-09-14
NO178363C (no) 1996-03-13
AU8785091A (en) 1992-05-21
CA2055135A1 (fr) 1992-05-17
FR2669350A1 (fr) 1992-05-22
NO914367D0 (no) 1991-11-08

Similar Documents

Publication Publication Date Title
ES2069254T3 (es) Procedimiento de tratamiento por via humeda de brascas usadas procedentes de cubas de electrolisis hall-heroult.
ES2025338B3 (es) Procedimiento para la preparacion de oxido de magnesio puro.
AR019417A1 (es) Un proceso para la recuperacion directa de cloruro de litio a partir de una salmuera.
RU98113521A (ru) Способ выделения глинозема и кремнезема
JPS56108887A (en) Electrolyzing method for common salt by simultaneous use of cation exchange membrane and diaphragm
BR8805400A (pt) Metodo para limpeza de solucao verde em moinhos de polpa de sulfato
ES2137564T3 (es) Procedimiento de eliminacion del hierro en las soluciones de aluminato sodico resultantes del ataque alcalino de bauxita de monohidrato de alumina (metahidroxido de aluminio).
TW200734289A (en) Treatment of aqueous liquids and the preparation of anthranilic acid
FR2609983B1 (fr) Procede pour le traitement du residu de filtration du sodium brut obtenu par electrolyse du sel fondu, conduisant a un alcoolate de sodium de grande purete
CA2168808A1 (en) Tar Sands Extraction Process
ES2081048T3 (es) Reduccion de la corrosividad con respecto al cobre de polisulfuros organicos.
MX165333B (es) Preparacion continua de peroxido de dialcansulfonilo
ZA935009B (en) Process for the heat treatment of used brasque linings from Hall-Heroult electrolysis tanks
EP0147714A3 (en) Process for the removal of sulfate from electrolysis brine
ES2065902T3 (es) Procedimiento para la elaboracion de residuos de destilacion que se producen en la purificacion de caprolactama.
ATE432119T1 (de) Verbessertes verfahren zur herstellung von filterhilfsmitteln in aluminium-raffinerien
PE22395A1 (es) Procedimiento para el tratamiento de licores acidos de desecho y para la elaboracion de productos comerciales hechos con los mismos
BR9813467A (pt) Processo para redução de incrustação no processo bayer
JO2161B1 (en) A method for the production of tetraabromobiphenol - A.
MX9200053A (es) Proceso para la obtencion directa de sulfato de; sodio anhidro.
FR2620738B1 (fr) Procede de regulation de l'acidite du bain d'electrolyse par recyclage des produits fluores emis par les cuves d'electrolyse hall-heroult
MX152749A (es) Metodo mejorado para revestir tinas para la produccion de aluminio por electrolisis
GR3003448T3 (en) Process for treating the linings of hall-heroult electrolytic cells by silicopyrohydrolysis
DE3364877D1 (en) Process for the electrolytic production of chlorine and caustic soda from salt containing sulphate
ES2039702T3 (es) Preparacion de haluros de alcanosulfonilo y acidos alcanosulfonicos.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 486410

Country of ref document: ES