GB1451429A - Controlling pig iron refining - Google Patents
Controlling pig iron refiningInfo
- Publication number
- GB1451429A GB1451429A GB2639375A GB2639375A GB1451429A GB 1451429 A GB1451429 A GB 1451429A GB 2639375 A GB2639375 A GB 2639375A GB 2639375 A GB2639375 A GB 2639375A GB 1451429 A GB1451429 A GB 1451429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- blown
- iron
- slag
- steel
- 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
- 229910000805 Pig iron Inorganic materials 0.000 title abstract 3
- 238000007670 refining Methods 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 4
- 229910052760 oxygen Inorganic materials 0.000 abstract 4
- 239000001301 oxygen Substances 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000002893 slag Substances 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
1451429 Refining iron CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 20 June 1975 [20 June 1974] 26393/75 Heading C7D In a pig-iron refining process, molten pig-iron in a converter is bottom blown through tuyeres with industrially pure oxygen and the input and output parameters are monitored. To control the quality of the steel, the temperature of the fumes leaving the converter during the oxygen blowing are measured to detect a minimum, which corresponds to the instant the slag is molten, and from that point, only a predetermined amount of oxygen is blown into the melt to produce the desired quality of steel, which may be defined by the temperature or composition of the steel. The quality of oxygen blown in after the slag is molten is determined from a previously calculated relationship between the iron content of the slag and the amount of oxygen blown after melting.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE816652 | 1974-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1451429A true GB1451429A (en) | 1976-10-06 |
Family
ID=3861039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2639375A Expired GB1451429A (en) | 1974-06-20 | 1975-06-20 | Controlling pig iron refining |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2275557A1 (en) |
| GB (1) | GB1451429A (en) |
| LU (1) | LU72777A1 (en) |
-
1975
- 1975-06-17 FR FR7519806A patent/FR2275557A1/en active Granted
- 1975-06-19 LU LU72777A patent/LU72777A1/xx unknown
- 1975-06-20 GB GB2639375A patent/GB1451429A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2275557B1 (en) | 1979-04-13 |
| LU72777A1 (en) | 1975-10-08 |
| FR2275557A1 (en) | 1976-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |