GB908531A - A process for the electrothermal production of magnesium - Google Patents
A process for the electrothermal production of magnesiumInfo
- Publication number
- GB908531A GB908531A GB1188959A GB1188959A GB908531A GB 908531 A GB908531 A GB 908531A GB 1188959 A GB1188959 A GB 1188959A GB 1188959 A GB1188959 A GB 1188959A GB 908531 A GB908531 A GB 908531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slag
- silicon
- magnesium
- ferro
- april
- 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
908,531. Producing magnesium. MAGNESIUM THERMIQUE MAGNETHERM. April 8, 1959 [April 9, 1958], No. 11889/59. Class 82 (1). In an electro-thermal process for the production of magnesium, the magnesia-containing material is reacted with a metallic reducing agent in a liquid slag containing (a) calcium oxide, (b) silica, and (c) alumina, the molar ratio a/b being at least 1.8 and the molar ratio c/b being at least 0.26. The reaction is effected under reduced pressure and the reducing agent may be high-grade ferro-silicon, pure silicon or an iron-silicon-aluminium alloy. In the furnace shown, calcined dolomite and alumina are fed from pipes 13 on to slag formed in a previous reduction. The slag is kept molten by electrodes 4, 12. Ferro-silicon is then fed on to the slag from a further pipe 13 and the magnesium produced is condensed at 17 and falls into a water-cooled crucible 22. When the slag metal reaches 14-14, the furnace is purged with argon and excess slag and low-grade ferro-silicon is withdrawn at 6 until the slag level drops to 15-15. The vacuum is then restored and charging continues as before until the required amount of magnesium has been produced. The calcined dolomite and ferro-silicon may be charged simultaneously if the temperature of the dolomite has not been allowed to drop below 800‹ C. after calcining.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR762671 | 1958-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB908531A true GB908531A (en) | 1962-10-17 |
Family
ID=8706197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1188959A Expired GB908531A (en) | 1958-04-09 | 1959-04-08 | A process for the electrothermal production of magnesium |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE577554A (en) |
| CH (1) | CH381861A (en) |
| ES (1) | ES248501A1 (en) |
| GB (1) | GB908531A (en) |
-
1959
- 1959-04-06 CH CH7159759A patent/CH381861A/en unknown
- 1959-04-08 GB GB1188959A patent/GB908531A/en not_active Expired
- 1959-04-08 ES ES0248501A patent/ES248501A1/en not_active Expired
- 1959-04-09 BE BE577554A patent/BE577554A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES248501A1 (en) | 1960-01-01 |
| BE577554A (en) | 1959-10-09 |
| CH381861A (en) | 1964-09-15 |
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