GB936909A - Treatment of molten ferrous metal - Google Patents
Treatment of molten ferrous metalInfo
- Publication number
- GB936909A GB936909A GB3114562A GB3114562A GB936909A GB 936909 A GB936909 A GB 936909A GB 3114562 A GB3114562 A GB 3114562A GB 3114562 A GB3114562 A GB 3114562A GB 936909 A GB936909 A GB 936909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- solid
- stream
- lime
- graphite
- 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
- C21C5/32—Blowing from above
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Iron (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
In a process for treating molten iron or steel by blowing with a stream of gas containing solid reagents a nozzle having two concentric passages is used, a high pressure stream of gas being supplied through the inner passage while the solid matter is suspended in a low pressure stream of gas supplied through the outer passage. The same or different gases may be used for the two streams. As solid materials, fluorspar, lime, bauxite, iron ore, graphite, coal and coke are referred to, while the carrier gas may be oxygen, nitrogen, carbon dioxide, propane or coke oven gas. By feeding in a mixture of lime and graphite, it is possible to reduce the phosphorus and sulphur content of the iron without decarburization. The nozzle may be used to melt a solid charge by passing high-pressure oxygen through the inner passage and low pressure fuel gas through the outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3114562A GB936909A (en) | 1962-08-14 | 1962-08-14 | Treatment of molten ferrous metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3114562A GB936909A (en) | 1962-08-14 | 1962-08-14 | Treatment of molten ferrous metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB936909A true GB936909A (en) | 1963-09-18 |
Family
ID=10318686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3114562A Expired GB936909A (en) | 1962-08-14 | 1962-08-14 | Treatment of molten ferrous metal |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB936909A (en) |
-
1962
- 1962-08-14 GB GB3114562A patent/GB936909A/en not_active Expired
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