GB964792A - Improvements in or relating to the extraction of aluminium - Google Patents

Improvements in or relating to the extraction of aluminium

Info

Publication number
GB964792A
GB964792A GB39563/60A GB3956360A GB964792A GB 964792 A GB964792 A GB 964792A GB 39563/60 A GB39563/60 A GB 39563/60A GB 3956360 A GB3956360 A GB 3956360A GB 964792 A GB964792 A GB 964792A
Authority
GB
United Kingdom
Prior art keywords
aluminium
flux
carbide
al4c3
proportion
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
GB39563/60A
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.)
Pechiney SA
Original Assignee
Pechiney SA
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 Pechiney SA filed Critical Pechiney SA
Publication of GB964792A publication Critical patent/GB964792A/en
Expired 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
    • C22B21/06—Obtaining aluminium refining
    • C22B21/062—Obtaining aluminium refining using salt or fluxing agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Aluminium is extracted from aluminium-aluminium carbide mixtures by using a flux containing at least one alkali metal halide and/ or at least one alkaline earth metal halide in a proportion by weight less than that of the mixture to form two phases which are separable. One phase comprises liquid aluminium, the other a slurry of the flux and aluminium carbide which becomes progressively more viscous as the carbide concentration increases until it finally congeals. The proportion by weight of the flux is preferably equal to that of the carbide in the Al-Al4C3 mixture. The flux may contain AlCl3 to lower the surface tension thereof and is preferably heated to a temperature of 100 DEG C. or more above its melting point in the pure state, e.g. 850-1000 DEG C. The temperature of the flux may be lowered during the course of the process to get a better separation of the aluminium and a small quantity of an inert substance (Al4C3 or Al2O3) may be added near the end of the process for better separation. Specifications 865,861 and 893,345 are referred to.
GB39563/60A 1959-11-18 1960-11-17 Improvements in or relating to the extraction of aluminium Expired GB964792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR810505A FR1461309A (en) 1959-11-18 1959-11-18 Treatment of aluminum-aluminum carbide mixtures

Publications (1)

Publication Number Publication Date
GB964792A true GB964792A (en) 1964-07-22

Family

ID=8721438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39563/60A Expired GB964792A (en) 1959-11-18 1960-11-17 Improvements in or relating to the extraction of aluminium

Country Status (9)

Country Link
US (1) US3068092A (en)
BE (1) BE597195A (en)
CH (1) CH400577A (en)
DE (1) DE1155252B (en)
ES (1) ES262528A1 (en)
FR (1) FR1461309A (en)
GB (1) GB964792A (en)
LU (1) LU39423A1 (en)
NL (1) NL258035A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607221A (en) * 1969-02-17 1971-09-21 Reynolds Metals Co Carbothermic production of aluminum
US3775092A (en) * 1970-11-11 1973-11-27 J Brusakov Method of refining aluminium-silicon alloys
US3958979A (en) * 1973-12-14 1976-05-25 Ethyl Corporation Metallurgical process for purifying aluminum-silicon alloy

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289320B (en) * 1964-02-11 1969-02-13 Showa Kenko Kabushiki Kaisha Process for the production of aluminum
US3410680A (en) * 1965-02-11 1968-11-12 Vaw Ver Aluminium Werke Ag Method of producing aluminum
US4216010A (en) * 1979-01-31 1980-08-05 Reynolds Metals Company Aluminum purification system
US9068246B2 (en) * 2008-12-15 2015-06-30 Alcon Inc. Decarbonization process for carbothermically produced aluminum

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE816018C (en) * 1949-04-22 1951-10-08 Metallgesellschaft Ag Process for removing magnesium from aluminum scrap or aluminum alloys
US2848321A (en) * 1956-01-02 1958-08-19 Foundry Services Ltd Drossing fluxes
US2974032A (en) * 1960-02-24 1961-03-07 Pechiney Reduction of alumina

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607221A (en) * 1969-02-17 1971-09-21 Reynolds Metals Co Carbothermic production of aluminum
US3775092A (en) * 1970-11-11 1973-11-27 J Brusakov Method of refining aluminium-silicon alloys
US3958979A (en) * 1973-12-14 1976-05-25 Ethyl Corporation Metallurgical process for purifying aluminum-silicon alloy

Also Published As

Publication number Publication date
BE597195A (en) 1961-05-17
CH400577A (en) 1965-10-15
LU39423A1 (en) 1961-05-17
DE1155252B (en) 1963-10-03
ES262528A1 (en) 1961-06-01
FR1461309A (en) 1966-02-25
NL258035A (en)
US3068092A (en) 1962-12-11

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