FR2088023A1 - Reduction of alumina - with carbon in an electric furnace - Google Patents

Reduction of alumina - with carbon in an electric furnace

Info

Publication number
FR2088023A1
FR2088023A1 FR7016830A FR7016830A FR2088023A1 FR 2088023 A1 FR2088023 A1 FR 2088023A1 FR 7016830 A FR7016830 A FR 7016830A FR 7016830 A FR7016830 A FR 7016830A FR 2088023 A1 FR2088023 A1 FR 2088023A1
Authority
FR
France
Prior art keywords
alumina
carbon
reduction
electric furnace
degrees
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.)
Granted
Application number
FR7016830A
Other languages
French (fr)
Other versions
FR2088023B1 (en
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to FR7016830A priority Critical patent/FR2088023A1/en
Publication of FR2088023A1 publication Critical patent/FR2088023A1/en
Application granted granted Critical
Publication of FR2088023B1 publication Critical patent/FR2088023B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/02—Obtaining aluminium with reducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Al is produced continuously by heating the charge consisting of Al2O3 and C to 2100 - 2500 degrees, cooling the molten mixture of Al and Al carbide to 1900 - 1400 degrees C, and separating molten Al from the solid Al carbide, the latter remaining in the furnace. Further Al2O3 and C are added to the remaining charge in the furnace which is again heated to 2100 - 2500 degrees C, the process being repeated.
FR7016830A 1970-05-08 1970-05-08 Reduction of alumina - with carbon in an electric furnace Granted FR2088023A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7016830A FR2088023A1 (en) 1970-05-08 1970-05-08 Reduction of alumina - with carbon in an electric furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7016830A FR2088023A1 (en) 1970-05-08 1970-05-08 Reduction of alumina - with carbon in an electric furnace

Publications (2)

Publication Number Publication Date
FR2088023A1 true FR2088023A1 (en) 1972-01-07
FR2088023B1 FR2088023B1 (en) 1973-05-25

Family

ID=9055262

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7016830A Granted FR2088023A1 (en) 1970-05-08 1970-05-08 Reduction of alumina - with carbon in an electric furnace

Country Status (1)

Country Link
FR (1) FR2088023A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473557A1 (en) * 1980-01-10 1981-07-17 Elkem Spigerverket As Carbothermic prodn. of aluminium (alloy) - with separate feed of alumina and reductant giving rapid prod. removal from reaction zone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR407875A (en) *
FR1531048A (en) * 1967-07-12 1968-06-28 Showa Denko Kk Processes for the production of very high purity aluminum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR407875A (en) *
FR1531048A (en) * 1967-07-12 1968-06-28 Showa Denko Kk Processes for the production of very high purity aluminum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473557A1 (en) * 1980-01-10 1981-07-17 Elkem Spigerverket As Carbothermic prodn. of aluminium (alloy) - with separate feed of alumina and reductant giving rapid prod. removal from reaction zone

Also Published As

Publication number Publication date
FR2088023B1 (en) 1973-05-25

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Legal Events

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