BR112022019185A2 - Método para produzir um bloco catódico para uma célula de eletrólise de hall-héroult para produção de alumínio, elemento catódico, e, bloco catódico catódico para uma célula de eletrólise de hall-héroult para produção de alumínio - Google Patents

Método para produzir um bloco catódico para uma célula de eletrólise de hall-héroult para produção de alumínio, elemento catódico, e, bloco catódico catódico para uma célula de eletrólise de hall-héroult para produção de alumínio

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Publication number
BR112022019185A2
BR112022019185A2 BR112022019185A BR112022019185A BR112022019185A2 BR 112022019185 A2 BR112022019185 A2 BR 112022019185A2 BR 112022019185 A BR112022019185 A BR 112022019185A BR 112022019185 A BR112022019185 A BR 112022019185A BR 112022019185 A2 BR112022019185 A2 BR 112022019185A2
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BR
Brazil
Prior art keywords
cathode
hall
cathode block
electrolysis cell
block
Prior art date
Application number
BR112022019185A
Other languages
English (en)
Inventor
Sundheim Jensen Morten
Original Assignee
Norsk Hydro As
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 Norsk Hydro As filed Critical Norsk Hydro As
Publication of BR112022019185A2 publication Critical patent/BR112022019185A2/pt

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
    • 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
    • C04B35/52—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 carbon, e.g. graphite
    • C04B35/528—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 carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
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    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
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    • 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
    • C04B35/63496—Bituminous materials, e.g. tar, pitch
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3804—Borides
    • C04B2235/3813—Refractory metal borides
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
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    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

MÉTODO PARA PRODUZIR UM BLOCO CATÓDICO PARA UMA CÉLULA DE ELETRÓLISE DE HALL-HÉROULT PARA PRODUÇÃO DE ALUMÍNIO, E, BLOCO CATÓDICO PARA UMA CÉLULA DE ELETRÓLISE DE HALL-HÉROULT PARA PRODUÇÃO DE ALUMÍNIO. A presente invenção refere-se a um bloco catódico e um método para produzir tal bloco catódico (32), para ser hasteado com barras catódicas (22, 22?) e instalado como um conjunto de cátodos em uma célula de Hall-Héroult para produção eletrolítica de alumínio, em que segmentos verdes pré-fabricados (31) de um material de compósito compreende pós de material duro, tal como TiB2, HfB2, ZrB2, CrB2, WB2, ou pó de carboneto de metal de refeitório, tal como SiC, Cr3C2. B4C, TiC, ou AI2O3, e coque e breu, são formados em um pequeno vibromolde. Esses segmentos de compósito verde (31) estão, então, dispostos em áreas selecionadas no fundo de um vibromolde maior para fazer os blocos catódicos, em que a pasta catódica carbonácea é inserida na forma, e a pasta catódica os segmentos pré-fabricados são expostos a um processo de formação no vibromolde, fundindo os segmentos de compósito pré-fabricados (31) com a pasta catódica, formando-se, assim, um bloco catódico verde com uma camada de compósito integrada. O bloco catódico (32) é, em seguida, assado e grafitado de maneira semelhante aos blocos catódicos convencionais.
BR112022019185A 2020-04-30 2020-04-30 Método para produzir um bloco catódico para uma célula de eletrólise de hall-héroult para produção de alumínio, elemento catódico, e, bloco catódico catódico para uma célula de eletrólise de hall-héroult para produção de alumínio BR112022019185A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/062030 WO2021219222A1 (en) 2020-04-30 2020-04-30 Cathode blocks for aluminium electroysis and a method for producing same

Publications (1)

Publication Number Publication Date
BR112022019185A2 true BR112022019185A2 (pt) 2022-11-01

Family

ID=78373356

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022019185A BR112022019185A2 (pt) 2020-04-30 2020-04-30 Método para produzir um bloco catódico para uma célula de eletrólise de hall-héroult para produção de alumínio, elemento catódico, e, bloco catódico catódico para uma célula de eletrólise de hall-héroult para produção de alumínio

Country Status (6)

Country Link
EP (1) EP4143368B1 (pt)
JP (1) JP2023531134A (pt)
AU (1) AU2020444643A1 (pt)
BR (1) BR112022019185A2 (pt)
CA (1) CA3175627A1 (pt)
WO (1) WO2021219222A1 (pt)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624766A (en) * 1982-07-22 1986-11-25 Commonwealth Aluminum Corporation Aluminum wettable cathode material for use in aluminum reduction cell
US4466995A (en) * 1982-07-22 1984-08-21 Martin Marietta Corporation Control of ledge formation in aluminum cell operation
RU2227178C2 (ru) * 1998-12-16 2004-04-20 Алкан Интернешнел Лимитед Способ изготовления многослойной катодной структуры
DE102012201468A1 (de) * 2012-02-01 2013-08-01 Sgl Carbon Se Verfahren zur Herstellung eines Kathodenblocks für eine Aluminium-Elektrolysezelle und einen Kathodenblock
NO20180369A1 (en) * 2018-03-14 2019-09-16 Norsk Hydro As Cathode elements for a Hall-Héroult cell for aluminium production and a cell of this type having such elements installed

Also Published As

Publication number Publication date
CA3175627A1 (en) 2021-11-04
JP2023531134A (ja) 2023-07-21
AU2020444643A1 (en) 2022-11-03
EP4143368B1 (en) 2024-03-13
EP4143368A1 (en) 2023-03-08
WO2021219222A1 (en) 2021-11-04

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