GB190909508A - Improved Process of Refining Metals and Alloys. - Google Patents
Improved Process of Refining Metals and Alloys.Info
- Publication number
- GB190909508A GB190909508A GB190909508DA GB190909508A GB 190909508 A GB190909508 A GB 190909508A GB 190909508D A GB190909508D A GB 190909508DA GB 190909508 A GB190909508 A GB 190909508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- gaseous mixture
- treatment
- bath
- impurities
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
9508. Greene, A. E. April 21. Cast - iron and scrap processes.-In a process for refining steel and steel alloys by eliminating one or more undesired oxidizable elements, the molten metal or alloy is maintained at a temperature at which the oxygen - affinity of the element or elements that it is desired to eliminate is greater than the oxygen-affinity of the element or elements that it is desired to retain, the said bath being subjected to the action of a gaseous mixture having oxidizing properties with respect to the former element or elements, but reducing properties with respect to the latter element or elements. The desired impurities are thereby removed without the remaining metal or constituents being prejudicially affected, and without danger of overblowing. The necessary conditions are obtained by a combined regulation of the temperature of the bath and of the composition of the gaseous mixture, the most advantageous temperature and composition being found by a series of trials upon the particular material to be treated. Blast-furnace gases may be employed as the gaseous mixture, the desired dissociation pressure being obtained by a variation of the composition of the mixture, and also of the total pressure thereof. The impurities may be largely removed by treatment with an oxidizing - gas prior to treatment with the gaseous mixture above described. A flux suitable for forming slag compounds with phosphorus and sulphur is employed when these impurities are present in the steel or other metal or alloy under treatment; and the treatment is continued by subjecting the bath to the further action of a gas having reducing-properties with respect to the said flux. The process may be applied to steel alloys containing one or more of the following, namely, titanium, tungsten, chromium, nickel, cobalt, molybdenum, silicon, and manganese. The process may be carried out in an electric furnace 4, the gaseous mixture being introduced through tuyeres 10, and the gaseous products removed, and the pressure in the furnace regulated by a fan 9; or an induction furnace may be employed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190909508T | 1909-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190909508A true GB190909508A (en) | 1910-06-21 |
Family
ID=32490793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190909508D Expired GB190909508A (en) | 1909-04-21 | 1909-04-21 | Improved Process of Refining Metals and Alloys. |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE239079C (en) |
| GB (1) | GB190909508A (en) |
-
0
- DE DENDAT239079D patent/DE239079C/de active Active
-
1909
- 1909-04-21 GB GB190909508D patent/GB190909508A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE239079C (en) |
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