GB1335151A - - Google Patents
Info
- Publication number
- GB1335151A GB1335151A GB1550272A GB1550272A GB1335151A GB 1335151 A GB1335151 A GB 1335151A GB 1550272 A GB1550272 A GB 1550272A GB 1550272 A GB1550272 A GB 1550272A GB 1335151 A GB1335151 A GB 1335151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lime
- surface area
- pig iron
- metallurgie
- steelmaking
- 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
-
- 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
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
1335151 Steelmaking CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 4 April 1972 [31 March 1971] 15502/72 Heading C7D In a basic Bessemer process using commercially pure O 2 , lime is introduced through the mouth of the converter subject to the following criteria: (i) the quantity is lower than 25 kg/kg of Si initially contained in the pig iron; (ii) the surface area of the quantity is at least 80m<SP>2</SP> / metric ton of pig iron; (iii) part of the lime has a surface area higher than 2À5m<SP>2</SP> /kg of lime. The lime can be added before or during the first two minutes of blowing, and can be introduced pneumatically.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU62900 | 1971-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1335151A true GB1335151A (en) | 1973-10-24 |
Family
ID=19726667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1550272A Expired GB1335151A (en) | 1971-03-31 | 1972-04-04 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE781092A (en) |
| FR (1) | FR2132161B1 (en) |
| GB (1) | GB1335151A (en) |
| LU (1) | LU62900A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE907781C (en) * | 1940-06-18 | 1954-03-29 | Thyssen Huette Ag | Process for improving the blowability of poorly blown, especially silicon-rich Thomas pig iron |
| DE1149372B (en) * | 1953-10-31 | 1963-05-30 | Huettenwerk Haspe Ag | Process to avoid ejection losses when blowing Thomas pig iron with a silicon content of over 0.4% to Thomas steel |
-
1971
- 1971-03-31 LU LU62900D patent/LU62900A1/xx unknown
-
1972
- 1972-03-22 BE BE781092A patent/BE781092A/xx unknown
- 1972-03-29 FR FR7210961A patent/FR2132161B1/fr not_active Expired
- 1972-04-04 GB GB1550272A patent/GB1335151A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE781092A (en) | 1972-07-17 |
| FR2132161A1 (en) | 1972-11-17 |
| LU62900A1 (en) | 1973-05-16 |
| FR2132161B1 (en) | 1974-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |