WO2003027360A3 - Temperature control for low temperature reduction cell - Google Patents

Temperature control for low temperature reduction cell Download PDF

Info

Publication number
WO2003027360A3
WO2003027360A3 PCT/US2002/028871 US0228871W WO03027360A3 WO 2003027360 A3 WO2003027360 A3 WO 2003027360A3 US 0228871 W US0228871 W US 0228871W WO 03027360 A3 WO03027360 A3 WO 03027360A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrolyte
cathodes
cell
anodes
molten
Prior art date
Application number
PCT/US2002/028871
Other languages
French (fr)
Other versions
WO2003027360A2 (en
Inventor
Theodore R Beck
Original Assignee
Nortwest Aluminum Technologies
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 Nortwest Aluminum Technologies filed Critical Nortwest Aluminum Technologies
Priority to AU2002339912A priority Critical patent/AU2002339912A1/en
Publication of WO2003027360A2 publication Critical patent/WO2003027360A2/en
Publication of WO2003027360A3 publication Critical patent/WO2003027360A3/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
    • 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
    • C25C3/20—Automatic control or regulation of cells
    • 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

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)

Abstract

An improved method of producing aluminum in an electrolytic cell comprising the steps of providing a molten salt electrolyte (45) at a temperature less than 900°C having alumina dissolved therein in an electrolytic cell (2) having a liner (4) for containing the electrolyte (45). The liner (4) is substantially inert with respect to the molten electrolyte (45) and has a bottom (36) and walls extending upwardly from the bottom (36). A plurality of non-consumable anodes (6) and cathodes (10) are disposed in the electrolyte (45) and an electric current is passed through the anodes (6) and through the electrolyte (45) to the cathodes (10) depositing alumium on the cathodes (10) and generating oxygen bubbles at the anodes (6), the bubbles stirring the electrolyte (45). Periodically, the electric current flow to the cell (2) is reduced for extended periods, during which time the electrolyte (45) and aluminum in the cell (2) is maintained in a molten condition by application of heat to the bottom (36) using heating means (80).
PCT/US2002/028871 2001-09-24 2002-09-12 Temperature control for low temperature reduction cell WO2003027360A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002339912A AU2002339912A1 (en) 2001-09-24 2002-09-12 Temperature control for low temperature reduction cell

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/960,907 2001-09-24
US09/960,907 US20030057102A1 (en) 2001-09-24 2001-09-24 Temperature control for low temperature reduction cell

Publications (2)

Publication Number Publication Date
WO2003027360A2 WO2003027360A2 (en) 2003-04-03
WO2003027360A3 true WO2003027360A3 (en) 2003-08-21

Family

ID=25503791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/028871 WO2003027360A2 (en) 2001-09-24 2002-09-12 Temperature control for low temperature reduction cell

Country Status (3)

Country Link
US (1) US20030057102A1 (en)
AU (1) AU2002339912A1 (en)
WO (1) WO2003027360A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3725145B2 (en) * 2003-07-14 2005-12-07 東洋炭素株式会社 Molten salt electrolytic bath control device and control method thereof
US8480876B2 (en) * 2007-12-26 2013-07-09 Theodore R. Beck Aluminum production cell
US20130292259A1 (en) * 2012-05-02 2013-11-07 Xin Xiao Large scale grid energy storage based on aluminum technology
CN102808196B (en) * 2012-07-27 2014-10-22 中国铝业股份有限公司 Direct-current shunt preheating start method for inert electrode aluminum electrolysis cell
EP3433397B1 (en) 2016-03-25 2021-05-26 Elysis Limited Partnership Electrode configurations for electrolytic cells and related methods
CN115074777B (en) * 2022-06-27 2024-01-30 中南大学 Large-scale double-layer airtight inert anode aluminum electrolysis cell capable of flexibly running

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062340A (en) * 1932-04-26 1936-12-01 Weaver Ida Shur Means for and method of producing aluminum
US4181583A (en) * 1978-12-06 1980-01-01 Ppg Industries, Inc. Method for heating electrolytic cell
US4865701A (en) * 1988-08-31 1989-09-12 Beck Theodore R Electrolytic reduction of alumina
WO1998053120A1 (en) * 1997-05-23 1998-11-26 Moltech Invent S.A. Aluminium production cell and cathode

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US466460A (en) * 1892-01-05 Art of electrolytic decomposition
US473866A (en) * 1892-04-26 Charles s
US889098A (en) * 1907-02-25 1908-05-26 Henry Spencer Blackmore Process of winning aluminium or other metals from their compounds.
US1297946A (en) * 1914-08-22 1919-03-18 Weaver Company Process for securing metals from their compounds.
US3632488A (en) * 1969-01-23 1972-01-04 Reynolds Metals Co Reduction cell control system
NO135034B (en) * 1975-04-10 1976-10-18 Norsk Hydro As
US4146444A (en) * 1978-04-10 1979-03-27 Aluminum Company Of America Method for preheating a molten salt electrolysis cell
US4181584A (en) * 1978-12-06 1980-01-01 Ppg Industries, Inc. Method for heating electrolytic cell
US4333803A (en) * 1980-10-03 1982-06-08 Aluminum Company Of America Method and apparatus for controlling the heat balance in aluminum reduction cells
US4608135A (en) * 1985-04-22 1986-08-26 Aluminum Company Of America Hall cell
US5057194A (en) * 1987-04-20 1991-10-15 Aluminum Company Of America Salt-based melting process
US5279715A (en) * 1991-09-17 1994-01-18 Aluminum Company Of America Process and apparatus for low temperature electrolysis of oxides
FR2753727B1 (en) * 1996-09-25 1998-10-23 METHOD FOR REGULATING THE BATH TEMPERATURE OF AN ELECTROLYSIS TANK FOR THE PRODUCTION OF ALUMINUM

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062340A (en) * 1932-04-26 1936-12-01 Weaver Ida Shur Means for and method of producing aluminum
US4181583A (en) * 1978-12-06 1980-01-01 Ppg Industries, Inc. Method for heating electrolytic cell
US4865701A (en) * 1988-08-31 1989-09-12 Beck Theodore R Electrolytic reduction of alumina
WO1998053120A1 (en) * 1997-05-23 1998-11-26 Moltech Invent S.A. Aluminium production cell and cathode

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BECK, T.R. "A Non-Consumable Metal Anode for Production of Aluminum With Low-Temperature Fluoride Melts", Light Metals 1995, The Minerals, Metals & Materials Society, 1995, pages 355-360, XP002960617 *

Also Published As

Publication number Publication date
US20030057102A1 (en) 2003-03-27
WO2003027360A2 (en) 2003-04-03
AU2002339912A1 (en) 2003-04-07

Similar Documents

Publication Publication Date Title
WO2004104273A8 (en) Cu-ni-fe anode for use in aluminum producing electrolytic cell
US4596637A (en) Apparatus and method for electrolysis and float
US4622111A (en) Apparatus and method for electrolysis and inclined electrodes
US7820027B2 (en) Method for electrolytically producing aluminum using closed end slotted carbon anodes
EP1190116B1 (en) Molten salt bath circulation design for an electrolytic cell
US5725744A (en) Cell for the electrolysis of alumina at low temperatures
CN104818499B (en) A kind of electrolysis is bench of burners
CA2477846A1 (en) Improved anode for use in aluminum producing electrolytic cell
EP0126555A1 (en) Electrolytic cell and method
WO2003089687A3 (en) Cu-ni-fe anodes having improved microstructure
CN105088284B (en) A kind of electrolytic furnace
CA1252418A (en) Electrolytic cell and method
US7799189B2 (en) Closed end slotted carbon anodes for aluminum electrolysis cells
WO2003027360A3 (en) Temperature control for low temperature reduction cell
US4504366A (en) Support member and electrolytic method
US7504010B2 (en) Anode for electrolysis of aluminum
CA3030330C (en) Advanced aluminum electrolysis cell
AU659247B2 (en) Cell for the electrolysis of alumina preferably at low temperatures
US20100200420A1 (en) Control of by-pass current in multi-polar light metal reduction cells
CA2358103A1 (en) Electrolytic cell with improved alumina supply
JP3865044B2 (en) Molten salt electrolysis method
EP0613504B1 (en) Cell for the electrolysis of alumina preferably at low temperatures
RU2124583C1 (en) Process of running of aluminum electrolyzer
RU2220228C2 (en) Gear for electrolyte circulation in bath of electrolyzer with salt melt
AU619829B2 (en) Transporting a liquid past a barrier

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AU CA IS

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)