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DE69207864D1 - Entgiftung von verbrauchter Ofenauskleidung aus Aluminium - Google Patents

Entgiftung von verbrauchter Ofenauskleidung aus Aluminium

Info

Publication number
DE69207864D1
DE69207864D1 DE69207864T DE69207864T DE69207864D1 DE 69207864 D1 DE69207864 D1 DE 69207864D1 DE 69207864 T DE69207864 T DE 69207864T DE 69207864 T DE69207864 T DE 69207864T DE 69207864 D1 DE69207864 D1 DE 69207864D1
Authority
DE
Germany
Prior art keywords
aqueous
detoxification
limestone
fluoride
convert
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 - Fee Related
Application number
DE69207864T
Other languages
English (en)
Other versions
DE69207864T2 (de
Inventor
Donald B Banker
Dennis G Brooks
Euel R Cutshall
Douglas D Macauley
Dennis F Strahan
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.)
Reynolds Metals Co
Original Assignee
Reynolds Metals Co
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 Reynolds Metals Co filed Critical Reynolds Metals Co
Application granted granted Critical
Publication of DE69207864D1 publication Critical patent/DE69207864D1/de
Publication of DE69207864T2 publication Critical patent/DE69207864T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/20—Halides
    • C01F11/22—Fluorides
    • 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
    • A62D2203/04—Combined processes involving two or more non-distinct steps covered by groups A62D3/10 - A62D3/40
    • 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
    • A62D2203/10—Apparatus specially adapted for treating harmful chemical agents; Details thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
DE69207864T 1991-10-11 1992-07-09 Entgiftung von verbrauchter Ofenauskleidung aus Aluminium Expired - Fee Related DE69207864T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/774,941 US5164174A (en) 1991-10-11 1991-10-11 Detoxification of aluminum spent potliner by thermal treatment, lime slurry quench and post-kiln treatment

Publications (2)

Publication Number Publication Date
DE69207864D1 true DE69207864D1 (de) 1996-03-07
DE69207864T2 DE69207864T2 (de) 1996-08-08

Family

ID=25102779

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69207864T Expired - Fee Related DE69207864T2 (de) 1991-10-11 1992-07-09 Entgiftung von verbrauchter Ofenauskleidung aus Aluminium

Country Status (7)

Country Link
US (1) US5164174A (de)
EP (1) EP0542404B1 (de)
AT (1) ATE133346T1 (de)
AU (1) AU647672B2 (de)
DE (1) DE69207864T2 (de)
ES (1) ES2082373T3 (de)
RU (1) RU2073069C1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664297B1 (fr) * 1990-07-04 1992-09-11 Pechiney Aluminium Procede de traitement par choc thermique de brasquages uses provenant de cuves d'electrolyse hall-heroult.
NO176648C (no) * 1991-11-07 1995-05-10 Elkem Technology Fremgangsmåte for behandling av brukte katodebunner
FR2693928B1 (fr) * 1992-07-24 1994-09-02 Pechiney Aluminium Procédé de traitement thermique de brasquages usés provenant de cuves d'électrolyse Hall-Héroult.
US5776426A (en) * 1992-07-24 1998-07-07 Comalco Aluminium Limited Treatment of solid material containing fluoride and sodium including mixing with caustic liquor and lime
US5273566A (en) * 1993-01-26 1993-12-28 International Environmelting Corporation Process for producing an environmentally acceptable abrasive product from hazardous wastes
US5470559A (en) * 1993-02-26 1995-11-28 Alcan International Limited Recycling of spent pot linings
US5476990A (en) * 1993-06-29 1995-12-19 Aluminum Company Of America Waste management facility
US5562363A (en) * 1994-05-20 1996-10-08 Stir-Melter, Inc. Apparatus for vitrifying hazardous waste
US5536114A (en) * 1994-05-20 1996-07-16 Stir-Melter, Inc. Apparatus for vitrifcation of hazardous waste
US5711635A (en) * 1994-05-20 1998-01-27 Stir-Melter, Inc. Apparatus for hazardous waste vitrification
US5558690A (en) * 1994-12-23 1996-09-24 Vortec Corporation Manufacture of ceramic tiles from spent aluminum potlining
US6193944B1 (en) 1995-12-08 2001-02-27 Goldendale Aluminum Company Method of recovering fumed silica from spent potliner
US6217840B1 (en) 1995-12-08 2001-04-17 Goldendale Aluminum Company Production of fumed silica
US5723097A (en) * 1995-12-08 1998-03-03 Goldendale Aluminum Company Method of treating spent potliner material from aluminum reduction cells
WO1997037949A1 (en) * 1996-04-09 1997-10-16 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
US6074623A (en) * 1997-10-14 2000-06-13 Vick; Steven C. Process for thermal destruction of spent potliners
RU2171853C2 (ru) * 1999-05-11 2001-08-10 Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" Способ переработки отработанной футеровки алюминиевых электролизеров
US6486376B2 (en) 1999-12-14 2002-11-26 Electro-Petroleum, Inc. Electrochemical system and method for rendering contaminated electrically conductive material nonhazardous
US6248302B1 (en) 2000-02-04 2001-06-19 Goldendale Aluminum Company Process for treating red mud to recover metal values therefrom
US6774277B2 (en) 2000-03-07 2004-08-10 Waste Management, Inc. Methods of destruction of cyanide in cyanide-containing waste
AU2003200307B2 (en) * 2002-02-01 2008-06-05 The University Of Melbourne Method for detoxification of spent potlining
US7217378B2 (en) * 2003-09-10 2007-05-15 Council Of Scientific & Industrial Research Simple and efficient process for the preparation of pencil lead from spent pot-liners
CA2497064C (en) * 2005-02-16 2007-06-19 Novafrit International Inc. Process and apparatus for converting spent potliners into a glass frit, and resulting products
WO2006086868A1 (en) * 2005-02-16 2006-08-24 Novafrit International Inc. Process and apparatus for converting spent potliners into a glass frit, and resulting products
GB0506041D0 (en) * 2005-03-24 2005-04-27 Ge Healthcare Ltd Stripping method
DE102005052753A1 (de) * 2005-11-04 2007-05-10 Polysius Ag Anlage und Verfahren zur Herstellung von Zementklinker
GB2453912B (en) * 2007-03-26 2011-12-28 Tetronics Ltd Method for treating spent pot liner
CN101444660B (zh) * 2008-12-30 2014-02-26 吴正建 固体废渣中氰化物和氟化物的无害化处理及回收工艺
DE102009042449A1 (de) * 2009-09-23 2011-03-31 Sgl Carbon Se Verfahren und Reaktor zur Aufbereitung von kohlenstoffhaltigem Schüttgut
CN102989743A (zh) * 2012-12-04 2013-03-27 贵州铝城铝业原材料研究发展有限公司 一种电解槽大修槽渣的扎糊回收利用方法
CN114850171B (zh) * 2022-05-13 2023-05-23 北京中科云腾科技有限公司 铝电解大修渣无害资源化处理方法

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971354A (en) * 1931-08-05 1934-08-28 Electric Smelting & Aluminum C Process of recovering alumina from aluminous silicious materials
US2141132A (en) * 1936-06-11 1938-12-20 Cowles Detergent Company Process of treating siliceous materials
US2420852A (en) * 1942-09-24 1947-05-20 Nepheline Products Ltd Recovery of alumina from ores
US3106448A (en) * 1961-04-03 1963-10-08 Aluminium Lab Ltd Recovery of cryolite
US3211524A (en) * 1964-01-29 1965-10-12 Little Inc A Process for treating ferruginous aluminum-bearing ores
US3476511A (en) * 1965-11-18 1969-11-04 Anaconda Co Calcination process for kaolin-containing clay
DE2403282A1 (de) * 1974-01-24 1975-11-06 Metallgesellschaft Ag Verfahren zur abscheidung von fluorwasserstoff aus abgasen der aluminiumelektrolyse durch trockenadsorption an aluminiumoxid unter vollstaendiger abtrennung der schaedlichen begleitelemente
US4018867A (en) * 1975-03-03 1977-04-19 Ethyl Corporation Process for the disposal of aluminum containing waste materials
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
US4160808A (en) * 1978-05-30 1979-07-10 Andersen John N Pyrohydrolysis process for spent aluminum reduction cell linings
US4160809A (en) * 1978-07-24 1979-07-10 Kaiser Aluminum & Chemical Corporation Modified pyrohydrolysis process for spent aluminum reduction cell linings
US4226632A (en) * 1978-09-18 1980-10-07 Tatabanyai Szenbanyak Process for producing high-purity alumina and hydraulic cement
US4436550A (en) * 1979-02-28 1984-03-13 Tatabanyai Szenbanyak Process for recovery of aluminum from carbonaceous waste products
DE2942439C2 (de) * 1979-10-20 1981-10-15 Vereinigte Aluminium-Werke Ag, 5300 Bonn Verfahren und Vorrichtung zur Gewinnung von Fluorwasserstoff aus fluorhaltigen Materialien durch Pyrohydrolyse
SU988771A1 (ru) * 1981-06-18 1983-01-15 Иркутский Филиал Всесоюзного Ордена Октябрьской Революции Научно-Исследовательского И Проектного Института Алюминиевой, Магниевой И Электродной Промышленности Способ отделени красного шлама
MX157475A (es) * 1981-07-06 1988-11-23 Ind Penoles Sa De Cv Mejoras en un procedimiento para la recuperacion de alumina a partir de materiales aluminosilicosos
DE3200347A1 (de) * 1982-01-08 1983-07-21 Kali Und Salz Ag, 3500 Kassel Verfahren zur herstellung eines deponiefaehigen oder zur wertstoffrueckgewinnung geeigneten produkts aus salzschlacke
DE3212297C2 (de) * 1982-03-29 1984-12-13 Schweizerische Aluminium Ag, Chippis Verfahren zur Herstellung grobkristalliner Tonerde
US4523949A (en) * 1982-09-30 1985-06-18 Combustion Engineering, Inc. Aluminum dross reclamation
US4444740A (en) * 1983-02-14 1984-04-24 Atlantic Richfield Company Method for the recovery of fluorides from spent aluminum potlining and the production of an environmentally safe waste residue
GB8305583D0 (en) * 1983-03-01 1983-03-30 Alcan Int Ltd Treatment of scrap lining material
EP0141932A3 (de) * 1983-08-25 1986-11-26 Klöckner-Humboldt-Deutz Aktiengesellschaft Verfahren und Anlage zur schadstofffreien Beseitigung von Schad- und Abfallstoffen mit geringem Heizwert, insbesondere Müll, durch Verbrennung
US4735784A (en) * 1986-07-11 1988-04-05 Morrison-Knudsen Company, Inc. Method of treating fluoride contaminated wastes
US4763585A (en) * 1987-09-08 1988-08-16 Ogden Environmental Services Method for the combustion of spent potlinings from the manufacture of aluminum
US5009511A (en) * 1987-10-20 1991-04-23 Inorganic Recycling Incorporated Inorganic recycling process
US4784733A (en) * 1987-11-23 1988-11-15 Reynolds Metals Company Recycling of spent potliner
US5024822A (en) * 1988-03-29 1991-06-18 Aluminum Company Of America Stabilization of fluorides of spent potlining by chemical dispersion
US4956158A (en) * 1988-03-29 1990-09-11 Aluminum Company Of America Stabilization of fluorides of spent potlining by chemical dispersion
US4993323A (en) * 1988-09-08 1991-02-19 Tabery Ronald S Fluidized bed combustion of aluminum smelting waste
IT1228481B (it) * 1989-01-18 1991-06-19 Engitec Impianti Procedimento e impianto per la lavorazione di scorie di fusione dirottami d'alluminio,di recupero di componenti e con trattamento dei gas svolti
US4973464A (en) * 1989-02-21 1990-11-27 Ogden Environmental Services Method for the removal of cyanides from spent potlinings from aluminum manufacture
US4927459A (en) * 1989-03-17 1990-05-22 Imco Recycling Inc. Treatment of aluminum reduction cell linings combined with use in aluminum scrap reclamation
DE3940903A1 (de) * 1989-12-11 1991-06-20 Dinda Kickdown Gmbh Verfahren und vorrichtung zur entsorgung von toxischen abfaellen
FR2664297B1 (fr) * 1990-07-04 1992-09-11 Pechiney Aluminium Procede de traitement par choc thermique de brasquages uses provenant de cuves d'electrolyse hall-heroult.

Also Published As

Publication number Publication date
EP0542404A1 (de) 1993-05-19
DE69207864T2 (de) 1996-08-08
AU2619292A (en) 1993-04-22
EP0542404B1 (de) 1996-01-24
US5164174A (en) 1992-11-17
ATE133346T1 (de) 1996-02-15
AU647672B2 (en) 1994-03-24
RU2073069C1 (ru) 1997-02-10
ES2082373T3 (es) 1996-03-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee