Method for manufacturing molten iron
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United States of America Patent
Stats
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Jul 8, 2014
Grant Date -
Mar 15, 2012
app pub date -
May 14, 2010
filing date -
May 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An object of the present invention is to provide a method for producing molten iron, the method being capable of minimizing the generation of converter dust and increasing the thermal degree of freedom in the converter process. In addition, the present invention provides a method for improving a converter operation method in the production of steels. The present invention relates to a method for producing molten iron including the steps of: 1) supplying carbon-containing molten pig iron to a converter, 2) continuously supplying iron oxide into the converter, and 3) blowing a mixed gas comprising a fuel gas and a combustion-supporting gas at a speed equal to or faster than the speed of sound to the molten pig iron to cause a combustion reaction, thereby heating the molten pig iron by heat of the combustion reaction.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| BR | A2 | BRPI1012146 | May 14, 2010 |
| JP | B2 | JP5506789 | May 14, 2010 |
| AU | B2 | AU2010248372 | May 14, 2010 |
| WO | A1 | WO2010131740 | May 14, 2010 |
International Classification(s)
- 2010 Application Filing Year
- C21C Class
- 53 Applications Filed
- 41 Patents Issued To-Date
- 77.36 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C21C Class
- 0 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 8, 2026 |
