NZ765670A - Cathode elements for a hall-héroult cell for aluminium production and a cell of this type having such elements installed - Google Patents

Cathode elements for a hall-héroult cell for aluminium production and a cell of this type having such elements installed

Info

Publication number
NZ765670A
NZ765670A NZ765670A NZ76567019A NZ765670A NZ 765670 A NZ765670 A NZ 765670A NZ 765670 A NZ765670 A NZ 765670A NZ 76567019 A NZ76567019 A NZ 76567019A NZ 765670 A NZ765670 A NZ 765670A
Authority
NZ
New Zealand
Prior art keywords
collector plate
cell
cathode
hall
elements
Prior art date
Application number
NZ765670A
Inventor
Jørund Hop
Martin Segatz
Stefan Jedeck
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 NZ765670A publication Critical patent/NZ765670A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • 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
    • C25C3/16—Electric current supply devices, e.g. bus bars

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Primary Cells (AREA)

Abstract

Provided is a cathode element (1’) for an electrolysis cell of Hall-Héroult type for producing aluminium, comprising a carbonaceous body (4) of calcinated carbonaceous material connected with the upper side of a metallic collector plate (2). The space between the said carbonaceous body and the collector plate is filled with an electric conductive material, preferably comprising conductive particles. The cathode element is further characterized in that the collector plate comprises at least one vertical metallic current outlet (7) connected to the collector plate at the opposite, lower side of the collector plate than that of the said carbonaceous body. The vertical outlet comprises a socket (10) integrated with the collector plate, and a rod-shaped current conductor (11) is attached to the socket. The present cathode design has shown to be very advantageous with regard to the magnetohydrodynamic stability of the cell it has been installed in, and has shown to have an improved life cycle and space usage and in operation, and it also represents a low cathode voltage drop with regard to a conventional cathode design.
NZ765670A 2018-03-14 2019-03-04 Cathode elements for a hall-héroult cell for aluminium production and a cell of this type having such elements installed NZ765670A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20180369A NO20180369A1 (en) 2018-03-14 2018-03-14 Cathode elements for a Hall-Héroult cell for aluminium production and a cell of this type having such elements installed
PCT/EP2019/055300 WO2019174948A1 (en) 2018-03-14 2019-03-04 Cathode elements for a hall-héroult cell for aluminium production and a cell of this type having such elements installed

Publications (1)

Publication Number Publication Date
NZ765670A true NZ765670A (en) 2023-03-31

Family

ID=65729322

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ765670A NZ765670A (en) 2018-03-14 2019-03-04 Cathode elements for a hall-héroult cell for aluminium production and a cell of this type having such elements installed

Country Status (9)

Country Link
US (1) US20200332427A1 (en)
EP (1) EP3765656A1 (en)
AU (1) AU2019235250B2 (en)
BR (1) BR112020015021A2 (en)
CA (1) CA3087116A1 (en)
EA (1) EA202092170A1 (en)
NO (1) NO20180369A1 (en)
NZ (1) NZ765670A (en)
WO (1) WO2019174948A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4139502B1 (en) 2020-04-24 2024-03-13 Norsk Hydro ASA Cathode assembly for a hall-heroult cell for aluminium production
PL4143368T3 (en) * 2020-04-30 2024-07-22 Norsk Hydro Asa Cathode blocks for aluminium electroysis and a method for producing same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434957A (en) * 1966-02-18 1969-03-25 Arthur F Johnson Aluminum reduction cell with aluminum and refractory layered bottom construction
AUPO053496A0 (en) * 1996-06-18 1996-07-11 Comalco Aluminium Limited Cathode construction
WO1998053120A1 (en) * 1997-05-23 1998-11-26 Moltech Invent S.A. Aluminium production cell and cathode
NO332480B1 (en) * 2006-09-14 2012-09-24 Norsk Hydro As Electrolysis cell and method of operation of the same
BRPI0908070B1 (en) * 2008-02-06 2019-11-05 Norsk Hydro As electrode for use in an electrolysis process for aluminum production
FR2977898A1 (en) * 2011-07-12 2013-01-18 Rio Tinto Alcan Int Ltd ALUMINERY COMPRISING CATHODIC EXIT TANKS THROUGH THE BOTTOM OF THE HOUSING AND TANK STABILIZATION MEANS
NO20141572A1 (en) * 2014-12-23 2016-06-24 Norsk Hydro As A modified electrolytic cell and a method for modifying the same
EP3491175A1 (en) * 2016-07-26 2019-06-05 COBEX GmbH Cathode assembly for the production of aluminum
WO2018019888A1 (en) * 2016-07-26 2018-02-01 Sgl Cfl Ce Gmbh Cathode current collector/connector for a hall-heroult cell

Also Published As

Publication number Publication date
NO20180369A1 (en) 2019-09-16
CA3087116A1 (en) 2019-09-19
EP3765656A1 (en) 2021-01-20
WO2019174948A1 (en) 2019-09-19
AU2019235250B2 (en) 2023-11-23
BR112020015021A2 (en) 2021-01-19
EA202092170A1 (en) 2021-01-19
AU2019235250A1 (en) 2020-07-09
US20200332427A1 (en) 2020-10-22

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 04 MAR 2025 BY DENNEMEYER + CO. S.A.R.L.

Effective date: 20240226