GB1069483A - Production of aluminium and aluminium/silicon alloys - Google Patents

Production of aluminium and aluminium/silicon alloys

Info

Publication number
GB1069483A
GB1069483A GB31189/64A GB3118964A GB1069483A GB 1069483 A GB1069483 A GB 1069483A GB 31189/64 A GB31189/64 A GB 31189/64A GB 3118964 A GB3118964 A GB 3118964A GB 1069483 A GB1069483 A GB 1069483A
Authority
GB
United Kingdom
Prior art keywords
alloy
aluminium
solids
purified
production
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
GB31189/64A
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.)
Reynolds Metals Co
Original Assignee
Reynolds Metals Co
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 Reynolds Metals Co filed Critical Reynolds Metals Co
Publication of GB1069483A publication Critical patent/GB1069483A/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
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • 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
    • C22B21/0038—Obtaining aluminium by other processes
    • C22B21/0053—Obtaining aluminium by other processes from other aluminium compounds
    • C22B21/0061—Obtaining aluminium by other processes from other aluminium compounds using metals, e.g. Hg or Mn
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting

Landscapes

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

Abstract

A process for the production of Al-Si alloys comprises heating alumina, silica elemental silicon and a carbonaceous reducing agent in a furnace to produce a crude alloy which is tapped and cooled to produce a purified Al-Si alloy liquid phase and solids comprising Si and Al-Si eutectic. The solids are removed and comminuted, the coarse fraction (i.e. that retained on a screen of from 30-300 U.S. standard mesh size) being substantially pure Al-Si alloy, which may be returned to the crude alloy or to the purified alloy, and fine fraction containing elemental silicon which can then be recycled to the furnace feed. When impure feed materials have been used the fine fraction (preferably after further comminution tc-270 mesh) may be subjected to flotation in an aqueous solution containing a soluble fluoride salt and a fluorine containing acid. The Al-Si alloy may be treated with liquid Pb, Zn or Hg in a conventional manner to extract commercial purity aluminium.
GB31189/64A 1963-07-19 1964-08-04 Production of aluminium and aluminium/silicon alloys Expired GB1069483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US296283A US3254988A (en) 1963-07-19 1963-07-19 Thermal reduction

Publications (1)

Publication Number Publication Date
GB1069483A true GB1069483A (en) 1967-05-17

Family

ID=23141362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31189/64A Expired GB1069483A (en) 1963-07-19 1964-08-04 Production of aluminium and aluminium/silicon alloys

Country Status (2)

Country Link
US (1) US3254988A (en)
GB (1) GB1069483A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434824A (en) * 1966-09-16 1969-03-25 Reynolds Metals Co Reduction of aluminum oxide by elemental silicon
US3507643A (en) * 1967-01-16 1970-04-21 Reynolds Metals Co Cell reduction of bauxite or clay
US3655362A (en) * 1969-05-16 1972-04-11 Reynolds Metals Co Process for the thermal reduction of alumina-bearing ores
US4046558A (en) * 1976-11-22 1977-09-06 Aluminum Company Of America Method for the production of aluminum-silicon alloys
US4053303A (en) * 1976-12-06 1977-10-11 Aluminum Company Of America Method of carbothermically producing aluminum-silicon alloys

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US324659A (en) * 1885-08-18 Process of electric sm elting for obtaining alumilnlum
US1534316A (en) * 1922-12-21 1925-04-21 Aluminum Co Of America Production of metallic aluminum from impure materials
US1878939A (en) * 1928-12-13 1932-09-20 Lester William Junius Production of metallic aluminum and other materials
US2439216A (en) * 1946-07-23 1948-04-06 Reynolds Metals Co Method for removing metallic iron from a fused alumina-cryolite composition
GB672216A (en) * 1949-05-20 1952-05-14 Peter Spence & Sons Ltd Improvements in the separation of alumina from silica and silicates
US3006723A (en) * 1959-03-20 1961-10-31 Pennsalt Chemicals Corp Process for the separation of aluminum from silicon in aluminum silicate ores
US3116997A (en) * 1959-08-31 1964-01-07 Aluminium Ind Ag Process for making aluminumsilicon alloys
US3102805A (en) * 1960-04-18 1963-09-03 Messner Georg Aluminum production from alloy

Also Published As

Publication number Publication date
US3254988A (en) 1966-06-07

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