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GB1073025A - Production of aluminium and aluminium/silicon alloys - Google Patents

Production of aluminium and aluminium/silicon alloys

Info

Publication number
GB1073025A
GB1073025A GB31187/64A GB3118764A GB1073025A GB 1073025 A GB1073025 A GB 1073025A GB 31187/64 A GB31187/64 A GB 31187/64A GB 3118764 A GB3118764 A GB 3118764A GB 1073025 A GB1073025 A GB 1073025A
Authority
GB
United Kingdom
Prior art keywords
alloy
aluminium
intermetallic
al2o3
sio2
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
GB31187/64A
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 GB1073025A publication Critical patent/GB1073025A/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)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicon Compounds (AREA)

Abstract

Oxidic ores comprising Al2O3 and SiO2 are heated in a furnace with a carbonaceous reducing agent and from 15-50% by weight, based on the Al2O3 and SiO2, of an intermetallic of Al and Si with Fe and/or Ti which is at least 75% chemically saturated with Al and/or Si, to give a molten raw alloy of Al and Si which is then tapped from the furnace. A portion of the Fe and/or Ti may be replaced by Mn and/or Cr but this replacement should preferably not exceed 10% of the total intermetallic composition. After tapping the raw alloy is cooled to about 600 DEG C. to leave the alloy as a liquid, the solid phase being the intermetallic complexes any excess elementary Si and any impurities. The solid phase may be crushed and screened to recover the elementary silicon and any of the Al/Si alloy trapped on cooling which may be returned to an earlier process step. Commercially pure aluminium may be made from the Al/Si alloy by treating it with a metallic solvent (Zn, Pb or Hg) to give a solid portion and a liquid portion from which the aluminium may be recovered by conventional techniques.
GB31187/64A 1963-07-19 1964-08-04 Production of aluminium and aluminium/silicon alloys Expired GB1073025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US296282A US3257199A (en) 1963-07-19 1963-07-19 Thermal reduction

Publications (1)

Publication Number Publication Date
GB1073025A true GB1073025A (en) 1967-06-21

Family

ID=23141358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31187/64A Expired GB1073025A (en) 1963-07-19 1964-08-04 Production of aluminium and aluminium/silicon alloys

Country Status (2)

Country Link
US (1) US3257199A (en)
GB (1) GB1073025A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures
GB2128635A (en) * 1982-10-22 1984-05-02 Skf Steel Eng Ab Manufacture of aluminium-silicon alloys

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507643A (en) * 1967-01-16 1970-04-21 Reynolds Metals Co Cell reduction of bauxite or clay
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
US7241500B2 (en) 2003-10-06 2007-07-10 Certainteed Corporation Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same
ITMI20050044A1 (en) * 2005-01-17 2006-07-18 Getters Spa COMPOSITIONS FOR RELEASING MERCURY
WO2009145968A1 (en) 2008-03-31 2009-12-03 Certainteed Corporation Coating compositions for roofing granules, dark colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing the same
US8722140B2 (en) * 2009-09-22 2014-05-13 Certainteed Corporation Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing the same
US10730799B2 (en) 2016-12-31 2020-08-04 Certainteed Corporation Solar reflective composite granules and method of making solar reflective composite granules

Family Cites Families (7)

* 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
US1644000A (en) * 1923-03-07 1927-10-04 Aluminum Co Of America Production of silicon-iron and aluminum-copper alloys
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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures
GB2128635A (en) * 1982-10-22 1984-05-02 Skf Steel Eng Ab Manufacture of aluminium-silicon alloys

Also Published As

Publication number Publication date
US3257199A (en) 1966-06-21

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