NZ194195A - Alumina reduction cell with floor coated with titanium diboride - Google Patents

Alumina reduction cell with floor coated with titanium diboride

Info

Publication number
NZ194195A
NZ194195A NZ194195A NZ19419580A NZ194195A NZ 194195 A NZ194195 A NZ 194195A NZ 194195 A NZ194195 A NZ 194195A NZ 19419580 A NZ19419580 A NZ 19419580A NZ 194195 A NZ194195 A NZ 194195A
Authority
NZ
New Zealand
Prior art keywords
cell
titanium diboride
carbon
floor
molten
Prior art date
Application number
NZ194195A
Inventor
R Biddolph
G Creffield
A Wickens
Original Assignee
United States Borax Chem
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 United States Borax Chem filed Critical United States Borax Chem
Publication of NZ194195A publication Critical patent/NZ194195A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/66—Electroplating: Baths therefor from melts
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Alumina reduction cells are used to prepare aluminium metal by the electrolytic reduction of alumina dissolved in molten cryolite. The molten aluminium formed collects at the bottom of the cell. When the cell floor serves as cathode and is of carbon, the molten aluminium does not wet the carbon making it necessary to increase the inter-electrode distance and reducing efficiency. The invention provides a cell wherein a floor cathode comprises a carbon substrate having an adherent surface layer of electrodeposited titanium diboride which is readily wettable by molten aluminium and which makes possible considerable savings in the expense of running the cell. The titanium diboride layer can be formed in situ in the cell or can be formed outside the cell on carbonaceous elements which are subsequently installed in the cell.
NZ194195A 1979-07-02 1980-06-30 Alumina reduction cell with floor coated with titanium diboride NZ194195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7922847 1979-07-02

Publications (1)

Publication Number Publication Date
NZ194195A true NZ194195A (en) 1982-03-30

Family

ID=10506221

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ194195A NZ194195A (en) 1979-07-02 1980-06-30 Alumina reduction cell with floor coated with titanium diboride

Country Status (9)

Country Link
EP (1) EP0021850B1 (en)
JP (1) JPS569384A (en)
AT (1) ATE4331T1 (en)
AU (1) AU530394B2 (en)
CA (1) CA1172991A (en)
DE (1) DE3064396D1 (en)
GR (1) GR67190B (en)
NO (1) NO801986L (en)
NZ (1) NZ194195A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500488B1 (en) * 1981-02-24 1985-07-12 Pechiney Aluminium PROCESS FOR PRODUCING ALUMINUM ACCORDING TO THE HALL-HEROULT TECHNIQUE AND CATHODE IN ELECTRICALLY CONDUCTIVE REFRACTORY FOR IMPLEMENTING THE PROCESS
BR8207799A (en) * 1981-07-27 1983-07-19 Martin Marietta Corp CATHODIC COATINGS OF HARD REFRACTORY MATERIAL AND CARBON FIBERS FOR ALUMINUM REDUCTION CELLS
US4560448A (en) * 1982-05-10 1985-12-24 Eltech Systems Corporation Aluminum wettable materials for aluminum production
ATE32107T1 (en) * 1982-05-10 1988-02-15 Eltech Systems Corp ALUMINUM WETTABLE MATERIALS.
US5227045A (en) * 1989-01-09 1993-07-13 Townsend Douglas W Supersaturation coating of cathode substrate
US5028301A (en) * 1989-01-09 1991-07-02 Townsend Douglas W Supersaturation plating of aluminum wettable cathode coatings during aluminum smelting in drained cathode cells
US5961811A (en) * 1997-10-02 1999-10-05 Emec Consultants Potlining to enhance cell performance in aluminum production
US6616829B2 (en) 2001-04-13 2003-09-09 Emec Consultants Carbonaceous cathode with enhanced wettability for aluminum production
CN102373488A (en) * 2011-10-26 2012-03-14 中国铝业股份有限公司 Method for reducing cathode drop of aluminium cell
RU2558703C2 (en) * 2013-10-08 2015-08-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" НГТУ Method of pouring ladle lining manufacturing
CN109695044B (en) * 2018-12-18 2020-10-09 广西师范大学 TiB with uniform and compact structure2Layered titanium-based cathode material and method for producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827954A (en) * 1969-04-14 1974-08-06 Us Interior Electrodeposition of metallic boride coatings
US3661736A (en) * 1969-05-07 1972-05-09 Olin Mathieson Refractory hard metal composite cathode aluminum reduction cell
FR2170188A1 (en) * 1972-02-04 1973-09-14 Borax Cons Ltd Carbon cathodes for aluminium refining - with fused refractory coating to reduce erosion
CH576005A5 (en) * 1972-03-21 1976-05-31 Alusuisse
US3775271A (en) * 1972-12-18 1973-11-27 Interior Electrolytic preparation of titanium and zirconium diborides using a molten, sodium salt electrolyte
US4093524A (en) * 1976-12-10 1978-06-06 Kaiser Aluminum & Chemical Corporation Bonding of refractory hard metal

Also Published As

Publication number Publication date
DE3064396D1 (en) 1983-09-01
NO801986L (en) 1981-01-05
EP0021850A1 (en) 1981-01-07
AU5979180A (en) 1981-01-15
GR67190B (en) 1981-06-24
EP0021850B1 (en) 1983-07-27
AU530394B2 (en) 1983-07-14
CA1172991A (en) 1984-08-21
ATE4331T1 (en) 1983-08-15
JPS6343475B2 (en) 1988-08-30
JPS569384A (en) 1981-01-30

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