FR2050886A5 - Dephosphoration of aluminium in molten - halide baths - Google Patents

Dephosphoration of aluminium in molten - halide baths

Info

Publication number
FR2050886A5
FR2050886A5 FR6921726A FR6921726A FR2050886A5 FR 2050886 A5 FR2050886 A5 FR 2050886A5 FR 6921726 A FR6921726 A FR 6921726A FR 6921726 A FR6921726 A FR 6921726A FR 2050886 A5 FR2050886 A5 FR 2050886A5
Authority
FR
France
Prior art keywords
aluminium
dephosphoration
molten
flux
passes
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
FR6921726A
Other languages
French (fr)
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
Priority to FR6921726A priority Critical patent/FR2050886A5/en
Application granted granted Critical
Publication of FR2050886A5 publication Critical patent/FR2050886A5/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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent

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)
  • Secondary Cells (AREA)

Abstract

Al or Al alloys containing up to 30 wt.% silicon is melted in a vertical electric furnace so that it passes dropwise through a flux of sodium fluoride or mixtures of sodium fluoride and sodium chloride. Calcium fluoride is used for high-silicon alloys. The phosphorous passes into the flux, giving aluminium with only 0.3-5 ppm phosphorus, with much less tendency to granulation in the solidified product.
FR6921726A 1969-06-27 1969-06-27 Dephosphoration of aluminium in molten - halide baths Expired FR2050886A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6921726A FR2050886A5 (en) 1969-06-27 1969-06-27 Dephosphoration of aluminium in molten - halide baths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6921726A FR2050886A5 (en) 1969-06-27 1969-06-27 Dephosphoration of aluminium in molten - halide baths

Publications (1)

Publication Number Publication Date
FR2050886A5 true FR2050886A5 (en) 1971-04-02

Family

ID=9036508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6921726A Expired FR2050886A5 (en) 1969-06-27 1969-06-27 Dephosphoration of aluminium in molten - halide baths

Country Status (1)

Country Link
FR (1) FR2050886A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167557A1 (en) * 2000-06-22 2002-01-02 Kabushiki Kaisha Daiki Aluminium Kogyosho Method of eliminating phosphorus and/or antimony from molten aluminum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167557A1 (en) * 2000-06-22 2002-01-02 Kabushiki Kaisha Daiki Aluminium Kogyosho Method of eliminating phosphorus and/or antimony from molten aluminum
US6336955B1 (en) * 2000-06-22 2002-01-08 K.K. Daiki Aluminum Kogyosho Method of eliminating phosphorus and/or antimony from molten aluminum

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse