GB875794A - Improvements relating to furnace charging and fluorine recovery in the production ofaluminium by melt-electrolysis - Google Patents

Improvements relating to furnace charging and fluorine recovery in the production ofaluminium by melt-electrolysis

Info

Publication number
GB875794A
GB875794A GB40426/58A GB4042658A GB875794A GB 875794 A GB875794 A GB 875794A GB 40426/58 A GB40426/58 A GB 40426/58A GB 4042658 A GB4042658 A GB 4042658A GB 875794 A GB875794 A GB 875794A
Authority
GB
United Kingdom
Prior art keywords
hopper
furnace
charge
gases
electrolysis
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
GB40426/58A
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.)
Elektrokemisk AS
Original Assignee
Elektrokemisk 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 Elektrokemisk AS filed Critical Elektrokemisk AS
Publication of GB875794A publication Critical patent/GB875794A/en
Expired legal-status Critical Current

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
    • C25C3/14—Devices for feeding or crust breaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Furnace Details (AREA)

Abstract

875,794. Producing aluminium by electrolysis. ELEKTROKEMISK A.S. Dec. 15, 1958 [Dec. 19, 1957], No. 40426/58. Class 41. A furnace for producing aluminium by electrolysis from a solution of alumina in molten cryolite in the furnace bath 9 has a hopper 1 for a charge 2 of alumina, means for collecting gases from the furnace and passing them through a burner, and means for passing the hot combustion gases from the burner through the charge 2 in the hopper 1 prior to introducing the charge 2 into the bath 9 so that the charge 2 is preheated and takes up fluorine constituents, e.g. by adsorption, from the gases for return to the furnace. The combustion gases pass by a pipe 3 through a slotted or perforated wall 5 of the hopper 1, and a branch pipe 11 may be provided to lead gases to the hopper 1 via a feed pipe 6 for the alumina. Combustion gases and/or compressed air are led through a pipe 13 which communicates with a central storage bin or with the hopper of the preceding furnace to fluidize and transport the charge to the hopper 1. A dry cyclone separator may be located upstream of the burner to remove dust from the gases.
GB40426/58A 1957-12-19 1958-12-15 Improvements relating to furnace charging and fluorine recovery in the production ofaluminium by melt-electrolysis Expired GB875794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO12653157 1957-12-19

Publications (1)

Publication Number Publication Date
GB875794A true GB875794A (en) 1961-08-23

Family

ID=19908416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40426/58A Expired GB875794A (en) 1957-12-19 1958-12-15 Improvements relating to furnace charging and fluorine recovery in the production ofaluminium by melt-electrolysis

Country Status (6)

Country Link
US (1) US3006825A (en)
CH (1) CH366976A (en)
DE (1) DE1089553B (en)
FR (1) FR1211874A (en)
GB (1) GB875794A (en)
SE (1) SE216123C1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135672A (en) * 1959-01-16 1964-06-02 Nippon Light Metal Co Method for feeding alumina to electrolytic cell
NL126517C (en) * 1959-09-03
US3207681A (en) * 1960-03-19 1965-09-21 Elektrokemisk As Process of exhausting gases from furnaces for production of aluminum by melt-electrolysis
CH373190A (en) * 1960-06-27 1963-11-15 Montedison Spa Process for the production of aluminum by electrolysis in a furnace and device for implementing this process
US3322659A (en) * 1964-06-17 1967-05-30 Paquet Jean Louis Treating of electrolytic aluminum reduction cell gases to recover fluorine values
US3664935A (en) * 1971-01-21 1972-05-23 Arthur F Johnson Effluent filtering process and apparatus for aluminum reduction cell
US4050999A (en) * 1974-06-26 1977-09-27 R.C.M. Corporation Process for the production and use of activated alumina to produce aluminum
US4016053A (en) * 1975-10-01 1977-04-05 Kaiser Aluminum & Chemical Corporation Feeding particulate matter
US4111764A (en) * 1977-05-17 1978-09-05 Aluminum Company Of America Method for feeding a subliming material into a liquid
DE2914238C2 (en) * 1979-03-02 1981-04-23 Schweizerische Aluminium AG, 3965 Chippis Device for the continuous feeding of alumina by means of a metering device
CH645677A5 (en) * 1979-08-28 1984-10-15 Alusuisse DEVICE FOR LOADING ELECTROLYSIS CELLS AND METHOD FOR THEIR OPERATION.
DE2943295C2 (en) * 1979-09-10 1983-02-03 Schweizerische Aluminium AG, 3965 Chippis Storage bunker for a drive-in device
AU9058282A (en) * 1981-11-04 1983-05-18 Hb-Consult Radgivande Ingenjorer A.B. Varmeatervinning ur aluminiumsmaltverk
US5324408A (en) * 1990-10-05 1994-06-28 Portland Smelter Services Pty. Ltd. Apparatus for controlled supply of alumina
NO301778B1 (en) * 1994-06-22 1997-12-08 Norsk Hydro As Dot feeder for dosing powder material
NO317229B1 (en) * 2002-07-01 2004-09-20 Storvik As point Mater
US7915550B2 (en) * 2008-06-17 2011-03-29 Mac Valves, Inc. Pneumatic system electrical contact device
US8367953B2 (en) * 2008-06-17 2013-02-05 Mac Valves, Inc. Pneumatic system electrical contact device
RU2566118C1 (en) * 2014-07-15 2015-10-20 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Device for stock batching into aluminium electrolytic cell (versions)
CN108883884B (en) * 2016-03-30 2020-11-17 美铝美国公司 Feeding system and method of using the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982568A (en) * 1943-07-17 1951-06-12 Method and devices for ensuring the continuous and automatic operation of igneous electrolysis furnaces, in particular for the manufacture of al? Sinium
DE1000156B (en) * 1954-11-05 1957-01-03 Vaw Ver Aluminium Werke Ag Cell for the production of high-purity aluminum
NL79897C (en) * 1959-04-24

Also Published As

Publication number Publication date
FR1211874A (en) 1960-03-18
CH366976A (en) 1963-01-31
US3006825A (en) 1961-10-31
DE1089553B (en) 1960-09-22
SE216123C1 (en) 1967-10-17

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