JPS57108214A - Continuous dephosphorization and desiliconization method for molten iron - Google Patents
Continuous dephosphorization and desiliconization method for molten ironInfo
- Publication number
- JPS57108214A JPS57108214A JP18442180A JP18442180A JPS57108214A JP S57108214 A JPS57108214 A JP S57108214A JP 18442180 A JP18442180 A JP 18442180A JP 18442180 A JP18442180 A JP 18442180A JP S57108214 A JPS57108214 A JP S57108214A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- hydrous
- molten iron
- molten
- iron oxide
- 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.)
- Pending
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
- C21C1/00—Refining of pig-iron; Cast iron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE:To perform continuous dephosphorization and desiliconization of molten iron with a simple method by charging Al and hydrous iron oxide, hydrous iron sand or hydrous iron ore in molten metal in the casting bed spout or hot metal car of a blast furnace. CONSTITUTION:In a casting bed spout or hot metal car, Al and hydrous iron oxide, etc. are charged into the molten iron flow tapped from a blast furnace. Then, Al combines with the P in the molten iron and forms compound AlP. This AlP is decomposed by the moisture of the hydrous iron oxide, hydrous sand iron or hydrous iron ore to be added simultaneously, and generates PH3. When this PH3 is exposed to air, it dissipates into the atmosphere by being converted to P2O5. On the other hand, the iron oxide oxidized the Si in the molten iron to SiO2. The SiO2 floats on the molten iron and is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442180A JPS57108214A (en) | 1980-12-24 | 1980-12-24 | Continuous dephosphorization and desiliconization method for molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442180A JPS57108214A (en) | 1980-12-24 | 1980-12-24 | Continuous dephosphorization and desiliconization method for molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57108214A true JPS57108214A (en) | 1982-07-06 |
Family
ID=16152862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18442180A Pending JPS57108214A (en) | 1980-12-24 | 1980-12-24 | Continuous dephosphorization and desiliconization method for molten iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57108214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274442A (en) * | 2005-03-02 | 2006-10-12 | Jfe Steel Kk | Method for dephosphorize-treating molten iron |
| JP2008260972A (en) * | 2007-04-10 | 2008-10-30 | Jfe Steel Kk | Plastic-containing refining agent, and method for dephosphorizing molten iron |
-
1980
- 1980-12-24 JP JP18442180A patent/JPS57108214A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274442A (en) * | 2005-03-02 | 2006-10-12 | Jfe Steel Kk | Method for dephosphorize-treating molten iron |
| JP2008260972A (en) * | 2007-04-10 | 2008-10-30 | Jfe Steel Kk | Plastic-containing refining agent, and method for dephosphorizing molten iron |
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