ES8504267A1 - Removal of alkali metals and alkaline earth metals from molten aluminium. - Google Patents

Removal of alkali metals and alkaline earth metals from molten aluminium.

Info

Publication number
ES8504267A1
ES8504267A1 ES527104A ES527104A ES8504267A1 ES 8504267 A1 ES8504267 A1 ES 8504267A1 ES 527104 A ES527104 A ES 527104A ES 527104 A ES527104 A ES 527104A ES 8504267 A1 ES8504267 A1 ES 8504267A1
Authority
ES
Spain
Prior art keywords
alkaline earth
vessel
molten
vortex
removal
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
ES527104A
Other languages
Spanish (es)
Other versions
ES527104A0 (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.)
Rio Tinto Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
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 Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Publication of ES527104A0 publication Critical patent/ES527104A0/en
Publication of ES8504267A1 publication Critical patent/ES8504267A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • 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)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

For removing contaminant alkali- and alkaline earth metal contaminants, particularly Li, a particulate aluminium fluoride-containing material is introduced into a vortex established in a non-cylindrical body of molten aluminium contained in a vessel. The generation of the vortex establishes currents having both downward and lateral components at the bottom of the vortex and upwardly spiralling currents at the periphery of the vessel, which serve to recirculate suspended matter. The stirring of the molten metal is continued until the contaminant level is reduced to a desired level and then the molten Al is separated from the reaction products. The body of metal is contained in a vessel which is non-cylindrical and/or has its axis inclined to the vertical.
ES527104A 1982-11-09 1983-11-08 Removal of alkali metals and alkaline earth metals from molten aluminium. Expired ES8504267A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82305965A EP0108178B1 (en) 1982-11-09 1982-11-09 Removal of alkali metals and alkaline earth metals from molten aluminium

Publications (2)

Publication Number Publication Date
ES527104A0 ES527104A0 (en) 1985-04-01
ES8504267A1 true ES8504267A1 (en) 1985-04-01

Family

ID=8189827

Family Applications (1)

Application Number Title Priority Date Filing Date
ES527104A Expired ES8504267A1 (en) 1982-11-09 1983-11-08 Removal of alkali metals and alkaline earth metals from molten aluminium.

Country Status (7)

Country Link
EP (1) EP0108178B1 (en)
JP (1) JPS59100231A (en)
AU (1) AU562966B2 (en)
CA (1) CA1215237A (en)
DE (1) DE3276823D1 (en)
ES (1) ES8504267A1 (en)
NO (1) NO162028C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112024B1 (en) * 1982-11-16 1986-10-22 Alcan International Limited Removal of impurities from molten aluminium
GB8428251D0 (en) * 1984-11-08 1984-12-19 Alcan Int Ltd Treating aluminium
US5080715A (en) * 1990-11-05 1992-01-14 Alcan International Limited Recovering clean metal and particulates from metal matrix composites

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459536A (en) * 1964-11-06 1969-08-05 Interlake Steel Corp Method for mixing molten metal
US3620716A (en) * 1969-05-27 1971-11-16 Aluminum Co Of America Magnesium removal from aluminum alloy scrap
GB1367069A (en) * 1970-10-22 1974-09-18 British Aluminium Co Ltd Removal of non-metallic constituents from liquid metal
US4060409A (en) * 1976-02-23 1977-11-29 Kennecott Copper Corporation Mechanically stirred furnace for pyrometallurgical operations and processes
US4058394A (en) * 1976-02-23 1977-11-15 Kennecott Copper Corporation Pyrometallurgical system for solid-liquid contacting
CA1188107A (en) * 1981-05-19 1985-06-04 Ghyslain Dube Removal of alkali metals and alkaline earth metals from molten aluminium
JPS6017009A (en) * 1983-07-11 1985-01-28 Mitsubishi Metal Corp Construction of tuyere part of refining furnace

Also Published As

Publication number Publication date
NO162028C (en) 1989-10-25
EP0108178B1 (en) 1987-07-22
NO834081L (en) 1984-05-10
AU2107783A (en) 1984-05-17
CA1215237A (en) 1986-12-16
EP0108178A1 (en) 1984-05-16
NO162028B (en) 1989-07-17
AU562966B2 (en) 1987-06-25
DE3276823D1 (en) 1987-08-27
ES527104A0 (en) 1985-04-01
JPS59100231A (en) 1984-06-09

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20050129