FR2050886A5 - Dephosphoration of aluminium in molten - halide baths - Google Patents
Dephosphoration of aluminium in molten - halide bathsInfo
- 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
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.
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)
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 |
-
1969
- 1969-06-27 FR FR6921726A patent/FR2050886A5/en not_active Expired
Cited By (2)
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 |