ES2141764T3 - Prevencion de la oxidacion de materiales carbonosos y otros a temperaturas elevadas. - Google Patents

Prevencion de la oxidacion de materiales carbonosos y otros a temperaturas elevadas.

Info

Publication number
ES2141764T3
ES2141764T3 ES93908886T ES93908886T ES2141764T3 ES 2141764 T3 ES2141764 T3 ES 2141764T3 ES 93908886 T ES93908886 T ES 93908886T ES 93908886 T ES93908886 T ES 93908886T ES 2141764 T3 ES2141764 T3 ES 2141764T3
Authority
ES
Spain
Prior art keywords
reactant
oxidation
high temperatures
silicon
sintered
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
ES93908886T
Other languages
English (en)
Inventor
Jainagesh A Sekhar
Nora Vittorio De
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.)
Moltech Invent SA
Original Assignee
Moltech Invent 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
Priority claimed from US07/861,513 external-priority patent/US5310476A/en
Priority claimed from US07/898,052 external-priority patent/US5364513A/en
Application filed by Moltech Invent SA filed Critical Moltech Invent SA
Application granted granted Critical
Publication of ES2141764T3 publication Critical patent/ES2141764T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
    • C04B41/5062—Borides, Nitrides or Silicides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
    • C04B41/5062—Borides, Nitrides or Silicides
    • C04B41/507—Borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • 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
    • 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
    • C25C3/085—Cell construction, e.g. bottoms, walls, cathodes characterised by its non electrically conducting heat insulating parts
    • 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
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00112—Mixtures characterised by specific pH values

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Laminated Bodies (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

UN CUERPO CARBONACEO O DE OTRO MATERIAL PARA SU USO EN MEDIOS CORROSIVOS TALES COMO MEDIOS OXIDANTES O AGENTES CORROSIVOS LIQUIDOS O GASEOSOS A TEMPERATURAS ELEVADAS, EN PARTICULAR SALES FUNDIDAS TALES COMO LA CRIOLITA, SE RECUBRE CON UN REVESTIMIENTO SUPERFICIAL PROTECTOR QUE MEJORA LA RESISTENCIA DEL CUERPO A LA OXIDACION Y A LA CORROSION Y QUE TAMBIEN PUEDE MEJORAR LA CONDUCTIVIDAD ELECTRICA Y/O LA ACTIVIDAD ELECTROQUIMICA DE LOS CUERPOS. EL REVESTIMIENTO PROTECTOR SE APLICA EN UNA O MAS CAPAS A PARTIR DE UNA PASTA COLOIDAL QUE CONTENGA SUBSTANCIAS REACTANTES O NO REACTANTES, O UNA MEZCLA DE SUBSTANCIAS REACTANTES Y NO REACTANTES, EN PARTICULAR MEZCLAS QUE CONTENGAN CARBURO DE SILICIO Y SILIZURO DE MOLIBDENO O CARBURO DE SILICIO Y NITRURO DE SILICIO, QUE CUANDO SE CALIENTA EL CUERPO HASTA UNA TEMPERATURA SUFICIENTE ELEVADA SE SINTERIZAN COMO RESULTADO DE LA REACCION MICROPIRETICA Y/O SE SINTERIZAN SIN REACCION PARA FORMAR EL REVESTIMIENTO PROTECTOR.
ES93908886T 1992-04-01 1993-04-01 Prevencion de la oxidacion de materiales carbonosos y otros a temperaturas elevadas. Expired - Lifetime ES2141764T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/861,513 US5310476A (en) 1992-04-01 1992-04-01 Application of refractory protective coatings, particularly on the surface of electrolytic cell components
US07/898,052 US5364513A (en) 1992-06-12 1992-06-12 Electrochemical cell component or other material having oxidation preventive coating

Publications (1)

Publication Number Publication Date
ES2141764T3 true ES2141764T3 (es) 2000-04-01

Family

ID=27127628

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93908886T Expired - Lifetime ES2141764T3 (es) 1992-04-01 1993-04-01 Prevencion de la oxidacion de materiales carbonosos y otros a temperaturas elevadas.

Country Status (8)

Country Link
US (3) US6139704A (es)
EP (1) EP0633870B1 (es)
AU (1) AU677777B2 (es)
CA (1) CA2131288C (es)
DE (1) DE69327095T2 (es)
ES (1) ES2141764T3 (es)
NO (1) NO308073B1 (es)
WO (2) WO1993020026A1 (es)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364513A (en) * 1992-06-12 1994-11-15 Moltech Invent S.A. Electrochemical cell component or other material having oxidation preventive coating
AU677777B2 (en) * 1992-04-01 1997-05-08 Moltech Invent S.A. Prevention of oxidation of carbonaceous and other materials at high temperatures
US5413689A (en) * 1992-06-12 1995-05-09 Moltech Invent S.A. Carbon containing body or mass useful as cell component
PL311202A1 (en) * 1993-04-19 1996-02-05 Moltech Invent Sa Method of conditioning components of chambers used in aluminium production processes
WO1994024337A1 (en) * 1993-04-19 1994-10-27 Moltech Invent Sa Treated carbon or carbon-based cathodic components of aluminium production cells
US5486278A (en) * 1993-06-02 1996-01-23 Moltech Invent S.A. Treating prebaked carbon components for aluminum production, the treated components thereof, and the components use in an electrolytic cell
SK142095A3 (en) * 1993-06-02 1997-05-07 Moltech Invent Sa Treating prebaked carbon anodes for aluminium production
US5679224A (en) * 1993-11-23 1997-10-21 Moltech Invent S.A. Treated carbon or carbon-based cathodic components of aluminum production cells
RU2082824C1 (ru) * 1994-03-10 1997-06-27 Московский государственный авиационный институт (технический университет) Способ защиты жаропрочных материалов от воздействия агрессивных сред высокоскоростных газовых потоков (варианты)
JPH09502131A (ja) * 1994-06-24 1997-03-04 マイクロパイレティックス、ヒーターズ、インターナショナル 多孔質メンブランおよびその製造方法
EP0782636B1 (en) * 1994-09-08 1999-05-06 MOLTECH Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks
US5472578A (en) * 1994-09-16 1995-12-05 Moltech Invent S.A. Aluminium production cell and assembly
DE4445377A1 (de) * 1994-12-20 1996-06-27 Cesiwid Elektrowaerme Gmbh Abrasionsfeste Oxidationsschutzschicht für SiC-Körper
US5560809A (en) * 1995-05-26 1996-10-01 Saint-Gobain/Norton Industrial Ceramics Corporation Improved lining for aluminum production furnace
US5728466A (en) * 1995-08-07 1998-03-17 Moltech Invent S.A. Hard and abrasion resistant surfaces protecting cathode blocks of aluminium electrowinning cells
US5753382A (en) * 1996-01-10 1998-05-19 Moltech Invent S.A. Carbon bodies resistant to deterioration by oxidizing gases
DE19616217C2 (de) * 1996-04-23 2000-01-05 Man Technologie Gmbh Schutzbeschichtung und Verfahren zur Beschichtung eines Werkstücks
DE19642506C1 (de) * 1996-10-15 1997-10-23 Sibco Gmbh Erzeugnis auf der Basis von Kohlenstoff und Kohlenfaserstoffen, Karbiden und/oder Di-Karbiden und Verfahren zu seiner Herstellung sowie Verwendung des Erzeugnisses
WO1998017843A1 (en) * 1996-10-18 1998-04-30 Moltech Invent S.A. The start-up of aluminium electrowinning cells
DE69711900D1 (de) * 1996-10-19 2002-05-16 Moltech Invent Sa Schlicker und verfahren zur herstellung von feuerfesten körpern und beschichtungen aus borid zur verwendung in elektrozellen zur gewinnung von aluminium
CA2287362A1 (en) * 1997-05-23 1998-11-26 Moltech Invent S.A. Aluminium production cell and cathode
EP0996773B1 (en) * 1997-07-08 2007-06-20 MOLTECH Invent S.A. A drained cathode cell for the production of aluminium
DE69906697T2 (de) * 1998-01-20 2004-03-11 Moltech Invent S.A. Methode zur herstellung beschichteter kohlenstoff-freier anoden auf basis von metallen zur anwendung in aluminium-herstellungszellen
US6365018B1 (en) * 1998-07-30 2002-04-02 Moltech Invent S.A. Surface coated non-carbon metal-based anodes for aluminium production cells
DE69933854T2 (de) * 1998-01-20 2007-05-31 Moltech Invent S.A. Aufschlämmung zum beschichten von kohlenstofffreien anoden auf metallbasis für zellen zur aluminiumherstellung
DE69922924T2 (de) * 1998-01-20 2005-12-15 Moltech Invent S.A. Kohlenstoff-freie anoden auf basis von metallen für aluminium-elektrogewinnungszellen
SK286563B6 (sk) * 1999-01-08 2009-01-07 Moltech Invent S.A. Pece na elektrolytické získavanie hliníka s uvoľňovaním kyslíka na anódach, spôsob výroby hliníka abezuhlíková anóda
NO20012118D0 (no) * 2001-04-27 2001-04-27 Norsk Hydro As Anordning ved anode for benyttelse i en elektrolysecelle
NZ531546A (en) * 2001-09-07 2005-12-23 Moltech Invent S Aluminium electrowinning cells with sloping foraminate oxygen-evolving anodes
IL166447A0 (en) * 2002-07-24 2006-01-15 Excera Materials Group Inc Improved ceramic/metal material and method for making same
AU2002348943A1 (en) * 2002-09-11 2004-04-30 Moltech Invent S.A. Non-carbon anodes for aluminium electrowinning and other oxidation resistant components with iron oxide-containing coatings
US20060188436A1 (en) * 2005-02-18 2006-08-24 Linnard Griffin Apparatus and method for the production of hydrogen
US20050042150A1 (en) * 2003-08-19 2005-02-24 Linnard Griffin Apparatus and method for the production of hydrogen
US20050109162A1 (en) * 2003-11-24 2005-05-26 Linnard Griffin Apparatus and method for the reduction of metals
US20090035652A1 (en) * 2007-07-31 2009-02-05 Greatbatch Ltd. Non-prismatic electrochemical cell
CN101709485B (zh) * 2009-12-18 2012-07-04 中国铝业股份有限公司 一种采用惰性阳极生产原铝的铝电解槽
CN101787549B (zh) * 2010-03-30 2011-06-08 云南铝业股份有限公司 一种提高铝电解开槽阳极抗氧化性的方法
DE102013110757A1 (de) * 2013-09-27 2015-04-23 Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Technologie, dieses vertreten durch den Präsidenten der BAM, Bundesanstalt für Materialforschung und -prüfung Verfahren zur Beschichtung von kohlenstoffhaltigen Bauteilen mit einer SiC-Schicht
US9409799B2 (en) * 2014-05-15 2016-08-09 Ronald Charles Mehl Gravity flow runoff water purification system
AT17485U1 (de) * 2020-12-15 2022-05-15 Plansee Se Yttriumoxid beschichtetes bauteil aus refraktärmetall

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348929A (en) * 1962-04-16 1967-10-24 Metalurgitschen Zd Lenin Protecting carbon materials from oxidation
US3634736A (en) * 1970-09-14 1972-01-11 Standard Oil Co Ohio Electrolytic capacitor employing paste electrodes
BE790211A (fr) * 1971-10-22 1973-02-15 British Steel Corp Appareil en vue de former des revetements protecteurs sur des articles en carbone
AU466850B2 (en) * 1971-11-26 1975-11-13 Foseco International Limited Protection of graphite electrodes
CH576005A5 (es) * 1972-03-21 1976-05-31 Alusuisse
US3939028A (en) * 1972-03-22 1976-02-17 Foseco International Limited Protection of carbon articles
US4308115A (en) * 1980-08-15 1981-12-29 Aluminum Company Of America Method of producing aluminum using graphite cathode coated with refractory hard metal
US4405433A (en) * 1981-04-06 1983-09-20 Kaiser Aluminum & Chemical Corporation Aluminum reduction cell electrode
BR8207776A (pt) * 1981-07-01 1983-05-31 Diamond Shamrock Corp Producao eletrolitica de aluminio
DE3373115D1 (en) * 1982-05-28 1987-09-24 Alcan Int Ltd Improvements in electrolytic reduction cells for aluminium production
DE3375030D1 (en) * 1982-07-22 1988-02-04 Commw Aluminium Corp Improved cell for electrolytic production of aluminum
US4602990A (en) * 1983-02-17 1986-07-29 Commonwealth Aluminum Corporation Low energy aluminum reduction cell with induced bath flow
US4622111A (en) * 1983-04-26 1986-11-11 Aluminum Company Of America Apparatus and method for electrolysis and inclined electrodes
US4559270A (en) * 1983-07-28 1985-12-17 Union Carbide Corporation Oxidation prohibitive coatings for carbonaceous articles
US4921731A (en) * 1986-02-25 1990-05-01 University Of Florida Deposition of ceramic coatings using sol-gel processing with application of a thermal gradient
US5227045A (en) * 1989-01-09 1993-07-13 Townsend Douglas W Supersaturation coating of cathode substrate
US4929328A (en) * 1989-03-07 1990-05-29 Martin Marietta Energy Systems, Inc. Titanium diboride ceramic fiber composites for Hall-Heroult cells
US5164233A (en) * 1990-01-12 1992-11-17 Lanxide Technology Company, Lp Method of making ceramic composite bodies and bodies made thereby
US5112654A (en) * 1990-06-25 1992-05-12 Lanxide Technology Company, Lp Method for forming a surface coating
FR2668480B1 (fr) * 1990-10-26 1993-10-08 Propulsion Ste Europeenne Procede pour la protection anti-oxydation d'un materiau composite contenant du carbone, et materiau ainsi protege.
US5286359A (en) * 1991-05-20 1994-02-15 Reynolds Metals Company Alumina reduction cell
DE4118304A1 (de) * 1991-06-04 1992-12-24 Vaw Ver Aluminium Werke Ag Elektrolysezelle zur aluminiumgewinnung
US5364513A (en) * 1992-06-12 1994-11-15 Moltech Invent S.A. Electrochemical cell component or other material having oxidation preventive coating
US5310476A (en) * 1992-04-01 1994-05-10 Moltech Invent S.A. Application of refractory protective coatings, particularly on the surface of electrolytic cell components
US5651874A (en) * 1993-05-28 1997-07-29 Moltech Invent S.A. Method for production of aluminum utilizing protected carbon-containing components
AU677777B2 (en) * 1992-04-01 1997-05-08 Moltech Invent S.A. Prevention of oxidation of carbonaceous and other materials at high temperatures
US6001236A (en) * 1992-04-01 1999-12-14 Moltech Invent S.A. Application of refractory borides to protect carbon-containing components of aluminium production cells

Also Published As

Publication number Publication date
WO1993025731A1 (en) 1993-12-23
US6607657B2 (en) 2003-08-19
CA2131288C (en) 1998-01-20
US20020043469A1 (en) 2002-04-18
DE69327095T2 (de) 2000-04-27
NO943657L (no) 1994-09-30
NO308073B1 (no) 2000-07-17
WO1993020026A1 (en) 1993-10-14
AU677777B2 (en) 1997-05-08
DE69327095D1 (de) 1999-12-30
CA2131288A1 (en) 1993-10-14
AU3950993A (en) 1993-11-08
EP0633870A1 (en) 1995-01-18
EP0633870B1 (en) 1999-11-24
US6287447B1 (en) 2001-09-11
NO943657D0 (no) 1994-09-30
US6139704A (en) 2000-10-31

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