GB882676A - Treatment of ferrous material - Google Patents
Treatment of ferrous materialInfo
- Publication number
- GB882676A GB882676A GB297458A GB297458A GB882676A GB 882676 A GB882676 A GB 882676A GB 297458 A GB297458 A GB 297458A GB 297458 A GB297458 A GB 297458A GB 882676 A GB882676 A GB 882676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- oxygen
- carbon monoxide
- combustible
- hydrogen
- 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
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
Abstract
A method of treating molten ferrous metal by blowing below the surface with oxygen or a gas containing oxygen comprises adding to the blowing gas a combustible gas consisting of free hydrogen or a gaseous hydrocarbon, or carbon monoxide or a gas containing free hydrogen and/or carbon monoxide, the oxygen in the blowing gas being in excess of that required to combine with the hydrogen and/or carbon monoxide. The ratio of oxygen to hydrogen and/or carbon monoxide may be in the range 1:1 to 2:1 by volume. The gases may be added through consumable double lance or a lance comprising two coaxial tubes, or a single lance having a diametral septum. The oxygen and the combustible gas may be mixed before being used if the mixture also contains an oxidation inhibitor e.g. steam, methyl bromide, or carbon tetrachloride, or the amount of combustible gas is outside the limits of combustion. Solid slag forming materials may be added in suspension in either of the gases or in an inert gas. The combustible gases include coal gas, water gas, producer gas, blast furnace gas, coke oven gas, natural gas, methane, propane, and butane. It is stated that the process reduces the amount of fume evolved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB297458A GB882676A (en) | 1958-01-29 | 1958-01-29 | Treatment of ferrous material |
| BE575171A BE575171A (en) | 1958-01-29 | 1959-01-28 | Treatment of ferrous material. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB297458A GB882676A (en) | 1958-01-29 | 1958-01-29 | Treatment of ferrous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB882676A true GB882676A (en) | 1961-11-15 |
Family
ID=9749543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB297458A Expired GB882676A (en) | 1958-01-29 | 1958-01-29 | Treatment of ferrous material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB882676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751242A (en) * | 1969-04-02 | 1973-08-07 | Eisenwerk Gmbh Sulzbach Rosenb | Process for making chrimium alloys |
| US3773496A (en) * | 1970-02-18 | 1973-11-20 | Maximilianshuette Eisenwerk | Process for producing chrome steels and a converter for carrying out the process |
| EP0099713A1 (en) * | 1982-07-12 | 1984-02-01 | Kawasaki Steel Corporation | A method for protecting tuyères for refining a molten iron |
-
1958
- 1958-01-29 GB GB297458A patent/GB882676A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751242A (en) * | 1969-04-02 | 1973-08-07 | Eisenwerk Gmbh Sulzbach Rosenb | Process for making chrimium alloys |
| US3773496A (en) * | 1970-02-18 | 1973-11-20 | Maximilianshuette Eisenwerk | Process for producing chrome steels and a converter for carrying out the process |
| EP0099713A1 (en) * | 1982-07-12 | 1984-02-01 | Kawasaki Steel Corporation | A method for protecting tuyères for refining a molten iron |
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