PH12012000344A1 - Refining method in converter - Google Patents
Refining method in converterInfo
- Publication number
- PH12012000344A1 PH12012000344A1 PH1/2012/000344A PH12012000344A PH12012000344A1 PH 12012000344 A1 PH12012000344 A1 PH 12012000344A1 PH 12012000344 A PH12012000344 A PH 12012000344A PH 12012000344 A1 PH12012000344 A1 PH 12012000344A1
- Authority
- PH
- Philippines
- Prior art keywords
- amount
- lime
- converter
- controlled
- feo
- Prior art date
Links
- 238000007670 refining Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 4
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 4
- 239000004571 lime Substances 0.000 abstract 4
- 238000007664 blowing Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005422 blasting Methods 0.000 abstract 2
- 238000005261 decarburization Methods 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
In decarburization refining of molten iron using a converter, the decarburization refining being performed with top-blowing oxygen gas, blasting of a lime source from a top-blowing lance, and a bottom-blowing inert gas for stirring, the amount of FeO generated in the converter is estimated, the amount of FeO generated during refining is controlled on the basis of the estimated amount of FeO generated, a ratio (powder blasting rate of lime source/generation rate of FeO) is controlled to be 0.4 or more and 5.5 or less, and a slag basicity (CaO/SiO2) is controlled to be 3.5 or less. Thus, melting of lime is promoted sp that the lime effectively acts on dephosphorization. As a result, the amount of flux used for dephosphorization is reduced, and a reduction in the smelting cost and a reduction in the generation of slag are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PH1/2012/000344A PH12012000344A1 (en) | 2012-11-06 | 2012-11-06 | Refining method in converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PH1/2012/000344A PH12012000344A1 (en) | 2012-11-06 | 2012-11-06 | Refining method in converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PH12012000344A1 true PH12012000344A1 (en) | 2014-06-09 |
Family
ID=94238089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PH1/2012/000344A PH12012000344A1 (en) | 2012-11-06 | 2012-11-06 | Refining method in converter |
Country Status (1)
| Country | Link |
|---|---|
| PH (1) | PH12012000344A1 (en) |
-
2012
- 2012-11-06 PH PH1/2012/000344A patent/PH12012000344A1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5332651B2 (en) | Method for recovering iron and phosphorus from steelmaking slag | |
| IN2014KN01258A (en) | ||
| AU2012206947B2 (en) | Method of desulfurizing steel | |
| JP5915711B2 (en) | Method for recovering iron and phosphorus from steelmaking slag | |
| CN103642971B (en) | Method for increasing the carbon content at the end point of semi-steel steelmaking and semi-steel steelmaking method | |
| CN103409595B (en) | Dephosphorization and steel-making method of vanadium-containing molten iron | |
| CN105018670B (en) | The method for smelting rail steel as raw material with vanadium-bearing hot metal | |
| CN103627839B (en) | Semisteel steelmaking carbon content control method and semisteel steelmaking method | |
| CN104195283A (en) | Vanadium slag modifier for converter vanadium extraction and converter vanadium extraction smelting method | |
| CN103993120B (en) | A kind of method of semisteel smelting low-sulfur steel | |
| CN103627851B (en) | Semi-steel steelmaking temperature control method and semi-steel steelmaking method | |
| CN103642966A (en) | Method for improving high-carbon high-manganese steel converter smelting endpoint carbon content and steelmaking method | |
| JP5111514B2 (en) | Method and apparatus for producing stainless steel on the basis of pig iron pretreated with a DDD apparatus without using an electrical energy supply | |
| JP2015092018A (en) | Method for refining hot pig iron in converter | |
| CN104004878B (en) | A kind of method improving semi-steel making Mn yield of alloy | |
| PH12012000344A1 (en) | Refining method in converter | |
| CN108165705A (en) | A kind of method of producing ultra-low phosphoretic steel by molten steel dephosphorising outside furnace | |
| TW200741014A (en) | Process for dephosphorizing hot metal | |
| CN201209147Y (en) | Duplex steel-smelting apparatus for converter | |
| RU2404261C1 (en) | Method of combined application process of slag skull and steel making in converter | |
| MY195752A (en) | Medium- Or Low-Carbon Ferromanganese Production Method | |
| Lule et al. | The Experience of ArcelorMittal Lázaro Cardenas Flat Carbon | |
| CN102367502B (en) | A deep dephosphorization process of molten steel by spraying powder on the ladle outside the furnace | |
| RU2009109924A (en) | METHOD FOR Smelting steel in an arc steel furnace | |
| PH12012000066A1 (en) | Method for smelting low carbon aluminum-killed steel with improved cleanliness |