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ES8504970A1 - IMPROVEMENTS IN A CELL FOR THE ELECTROLYTIC REDUCTION OF ALUMINA TO ALUMINUM - Google Patents

IMPROVEMENTS IN A CELL FOR THE ELECTROLYTIC REDUCTION OF ALUMINA TO ALUMINUM

Info

Publication number
ES8504970A1
ES8504970A1 ES524394A ES524394A ES8504970A1 ES 8504970 A1 ES8504970 A1 ES 8504970A1 ES 524394 A ES524394 A ES 524394A ES 524394 A ES524394 A ES 524394A ES 8504970 A1 ES8504970 A1 ES 8504970A1
Authority
ES
Spain
Prior art keywords
aluminum
cells
cell
system utilized
alumina
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
Application number
ES524394A
Other languages
Spanish (es)
Other versions
ES524394A0 (en
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.)
Lockheed Martin Corp
Original Assignee
Martin Marietta Corp
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 US06/400,762 external-priority patent/US4544469A/en
Priority claimed from US06/400,773 external-priority patent/US4466996A/en
Priority claimed from US06/400,772 external-priority patent/US4526911A/en
Application filed by Martin Marietta Corp filed Critical Martin Marietta Corp
Publication of ES8504970A1 publication Critical patent/ES8504970A1/en
Publication of ES524394A0 publication Critical patent/ES524394A0/en
Granted 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/5805—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides
    • C04B35/58064—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides
    • C04B35/58071—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on borides based on refractory borides based on titanium 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
    • C04B41/009—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
    • C04B41/5053—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
    • C04B41/80—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Aluminum cells may be provided having cathode surfaces which are wetted by aluminum, said surfaces comprising Refractory Hard Materials in a non-graphitized carbon matrix. Such cells may utilize inclined or drained cathodes as well as non-consumable anodes. The resinous binder system utilized in the surface coating material is characterized by a char yield greater than 25 percent, while the coating composition exhibits expansion characteristics such as to adhere to a cathode block at temperatures up to and including those normally encountered in the operation of an aluminum cell. The ablation rate of the carbon system utilized is essentially equal to the combined wear and dissolution rate of the Refractory Hard Material in an aluminum cell environment.
ES524394A 1982-07-22 1983-07-22 IMPROVEMENTS IN A CELL FOR THE ELECTROLYTIC REDUCTION OF ALUMINA TO ALUMINUM Granted ES524394A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/400,762 US4544469A (en) 1982-07-22 1982-07-22 Aluminum cell having aluminum wettable cathode surface
US06/400,773 US4466996A (en) 1982-07-22 1982-07-22 Aluminum cell cathode coating method
US06/400,772 US4526911A (en) 1982-07-22 1982-07-22 Aluminum cell cathode coating composition

Publications (2)

Publication Number Publication Date
ES8504970A1 true ES8504970A1 (en) 1985-04-16
ES524394A0 ES524394A0 (en) 1985-04-16

Family

ID=27410420

Family Applications (2)

Application Number Title Priority Date Filing Date
ES524394A Granted ES524394A0 (en) 1982-07-22 1983-07-22 IMPROVEMENTS IN A CELL FOR THE ELECTROLYTIC REDUCTION OF ALUMINA TO ALUMINUM
ES539499A Granted ES539499A0 (en) 1982-07-22 1985-01-11 PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM HUMECTABLE CATHODIC SURFACE FOR AN ALUMINUM REDUCTION CELL

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES539499A Granted ES539499A0 (en) 1982-07-22 1985-01-11 PROCEDURE FOR THE PRODUCTION OF AN ALUMINUM HUMECTABLE CATHODIC SURFACE FOR AN ALUMINUM REDUCTION CELL

Country Status (8)

Country Link
JP (1) JPS59501671A (en)
AU (1) AU571186B2 (en)
CA (1) CA1256232A (en)
ES (2) ES524394A0 (en)
MX (1) MX159936A (en)
NZ (1) NZ204983A (en)
SU (1) SU1554769A3 (en)
WO (1) WO1984000566A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582553A (en) * 1984-02-03 1986-04-15 Commonwealth Aluminum Corporation Process for manufacture of refractory hard metal containing plates for aluminum cell cathodes
AU2824084A (en) * 1984-02-03 1985-08-27 Commonwealth Aluminium Corporation Refractory hard metal containing plates for aluminium cell cathodes
US5019426A (en) * 1987-06-16 1991-05-28 Union Carbide Corporation Topical treatment for sealing carbon and graphite surfaces
EP0296757B1 (en) * 1987-06-16 1993-12-01 Ucar Carbon Technology Corporation Method for sealing carbon and graphite surfaces
US5002981A (en) * 1988-12-07 1991-03-26 Ucar Carbon Technology Corporation High strength carbonaceous cement
US6475358B2 (en) * 2000-02-16 2002-11-05 Alcan International Limited Method for providing a protective coating for carbonaceous components of an electrolysis cell
RU2401885C1 (en) * 2009-03-23 2010-10-20 Федеральное государственное образовательное учреждение высшего профессионального образования "Сибирский федеральный университет" Method of protecting cathode assembly of aluminium electrolysis cell
JP5554117B2 (en) * 2010-03-30 2014-07-23 日本電極株式会社 Cathode carbon block for aluminum refining and method for producing the same
CN114457383B (en) * 2022-02-28 2023-05-23 山西亮宇炭素有限公司 Cathode tamping paste for environment-friendly aluminum electrolysis cell
CN115961310B (en) * 2023-01-31 2023-12-12 中铝郑州有色金属研究院有限公司 Titanium diboride wettable cathode
CN116789921A (en) * 2023-05-23 2023-09-22 利津荣达新材料有限公司 Preparation method of prebaked anode binder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251962B (en) * 1963-11-21 1967-10-12 The British Aluminium Company Limited, London Cathode for an electrolytic cell for the production of aluminum and process for the production of the same
US3441529A (en) * 1966-11-16 1969-04-29 Union Carbide Corp Carbonaceous cement
US3661736A (en) * 1969-05-07 1972-05-09 Olin Mathieson Refractory hard metal composite cathode aluminum reduction cell
US4042656A (en) * 1975-04-21 1977-08-16 Vladimir Petrovich Chviruk Graphite-base filling material for the decomposition of alkali metal amalgams and method of producing same
US4179345A (en) * 1979-02-26 1979-12-18 Aluminum Company Of America Controlled wettability graphite electrodes for selective use in electrolysis cells
US4308114A (en) * 1980-07-21 1981-12-29 Aluminum Company Of America Electrolytic production of aluminum using a composite cathode
US4308115A (en) * 1980-08-15 1981-12-29 Aluminum Company Of America Method of producing aluminum using graphite cathode coated with refractory hard metal
US4376029A (en) * 1980-09-11 1983-03-08 Great Lakes Carbon Corporation Titanium diboride-graphite composits

Also Published As

Publication number Publication date
AU571186B2 (en) 1988-04-14
JPH039195B2 (en) 1991-02-07
AU1880883A (en) 1984-02-23
SU1554769A3 (en) 1990-03-30
ES8602156A1 (en) 1985-11-16
NZ204983A (en) 1986-08-08
CA1256232A (en) 1989-06-20
WO1984000566A1 (en) 1984-02-16
ES524394A0 (en) 1985-04-16
MX159936A (en) 1989-10-06
JPS59501671A (en) 1984-10-04
ES539499A0 (en) 1985-11-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970401