GB942629A - Improvements in purification of aluminium - Google Patents
Improvements in purification of aluminiumInfo
- Publication number
- GB942629A GB942629A GB403862A GB403862A GB942629A GB 942629 A GB942629 A GB 942629A GB 403862 A GB403862 A GB 403862A GB 403862 A GB403862 A GB 403862A GB 942629 A GB942629 A GB 942629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystals
- aluminium
- mother liquor
- minutes
- once
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for removing impurities such as Fe, Si and Ga from aluminium comprises removing the heat from molten aluminium substantially only through the metal-air interface with or without a flux covering so that discrete crystals, having an aluminium content higher than the starting material, are formed which drop under the influence of gravity. These crystals may be compacted to expel some of the mother liquor, not more than half the area of the bath being tamped at each stroke and the whole area being covered at least once every 10 minutes preferably once every 3-5 minutes. The mother liquor is then drained off and the crystals are remelted in at least two stages to give first a mass of higher purity than at the start and finally the very purest fraction. The addition of boron to remove titanium as the boride is also referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8833461A | 1961-02-10 | 1961-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB942629A true GB942629A (en) | 1963-11-27 |
Family
ID=22210761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB403862A Expired GB942629A (en) | 1961-02-10 | 1962-02-02 | Improvements in purification of aluminium |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS495806B1 (en) |
| CH (1) | CH445132A (en) |
| DE (1) | DE1211800B (en) |
| GB (1) | GB942629A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1519999A (en) * | 1974-09-30 | 1978-08-02 | Commw Scient Ind Res Org | Method for the continuous reflux reflux refining of metal |
| JP2002097528A (en) * | 2000-09-22 | 2002-04-02 | Sumitomo Chem Co Ltd | Purification method of aluminum |
| EP3235917B1 (en) | 2016-04-19 | 2018-08-15 | Rheinfelden Alloys GmbH & Co. KG | Alloy for pressure die casting |
| EP3235916B1 (en) | 2016-04-19 | 2018-08-15 | Rheinfelden Alloys GmbH & Co. KG | Cast alloy |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE326160C (en) * | 1919-01-23 | 1920-09-23 | Physikalisch Tech Reichsanstal | Process and apparatus for cleaning aluminum with less than 1 percent contamination |
| DE561173C (en) * | 1929-05-24 | 1933-01-18 | Ver Aluminium Werke Akt Ges | Process for the extraction of pure light metals and light metal alloys, especially pure aluminum |
-
1962
- 1962-02-02 GB GB403862A patent/GB942629A/en not_active Expired
- 1962-02-09 CH CH161262A patent/CH445132A/en unknown
- 1962-02-09 DE DEA39444A patent/DE1211800B/en active Pending
- 1962-02-10 JP JP37004439A patent/JPS495806B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH445132A (en) | 1967-10-15 |
| DE1211800B (en) | 1966-03-03 |
| JPS495806B1 (en) | 1974-02-09 |
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