RU2008120854A - METHOD FOR Smelting Ferroalloys by Carbon Reduction Process - Google Patents
METHOD FOR Smelting Ferroalloys by Carbon Reduction Process Download PDFInfo
- Publication number
- RU2008120854A RU2008120854A RU2008120854/02A RU2008120854A RU2008120854A RU 2008120854 A RU2008120854 A RU 2008120854A RU 2008120854/02 A RU2008120854/02 A RU 2008120854/02A RU 2008120854 A RU2008120854 A RU 2008120854A RU 2008120854 A RU2008120854 A RU 2008120854A
- Authority
- RU
- Russia
- Prior art keywords
- oxides
- reducing agent
- melt
- oxide
- released
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 9
- 229910001021 Ferroalloy Inorganic materials 0.000 title claims abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract 4
- 229910052799 carbon Inorganic materials 0.000 title claims abstract 4
- 238000003723 Smelting Methods 0.000 title claims abstract 3
- 238000011946 reduction process Methods 0.000 title claims abstract 3
- 239000003638 chemical reducing agent Substances 0.000 claims abstract 6
- 230000004907 flux Effects 0.000 claims abstract 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract 4
- 239000002893 slag Substances 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims abstract 3
- 229910045601 alloy Inorganic materials 0.000 claims abstract 2
- 239000000956 alloy Substances 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
1. Способ выплавки ферросплавов углевосстановительным процессом, включающий подготовку шихты, загрузку ее в печь, восстановление оксидов, выпуск продуктов плавки, отличающийся тем, что вначале восстанавливают оксиды, термодинамическая прочность которых ниже, чем у закиси марганца, сплав выпускают, а оксидный расплав направляют на нагретый до температуры 1850-2200°С углеродистый восстановитель, где проводят восстановление других оксидов расплава. ! 2. Способ по п.1, отличающийся тем, что в состав шихты сначала вводят флюс, обеспечивающий получение оксидного расплава вязкостью в пределах 0,3-10 П. ! 3. Способ по любому из пп.1 и 2, отличающийся тем, что на нагретый восстановитель одновременно с оксидным расплавом задают углеродистый восстановитель и флюс до отношения в конечном шлаке СаО/SiО2 в пределах 0,2-1,4. ! 4. Способ по любому из пп.1 и 2, отличающийся тем, что жидкий ферросплав и конечный шлак выпускают из печи одновременно и раздельно.1. A method of smelting ferroalloys by a carbon reduction process, including preparing the charge, loading it into the furnace, reducing oxides, releasing melting products, characterized in that the oxides are first reduced, the thermodynamic strength of which is lower than that of manganese oxide, the alloy is released, and the oxide melt is sent to a carbonaceous reducing agent heated to a temperature of 1850-2200 ° C., where other melt oxides are reduced. ! 2. The method according to claim 1, characterized in that the flux is first introduced into the composition of the charge, which provides an oxide melt with a viscosity in the range of 0.3-10 P.! 3. The method according to any one of claims 1 and 2, characterized in that a carbon reducing agent and a flux are set on the heated reducing agent simultaneously with the oxide melt to a ratio in the final slag CaO / SiO2 in the range 0.2-1.4. ! 4. The method according to any one of claims 1 and 2, characterized in that the liquid ferroalloy and the final slag are released from the furnace simultaneously and separately.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008120854/02A RU2382089C1 (en) | 2008-05-27 | 2008-05-27 | Reprocessing method of ferrimanganese bases and concentrates with receiving of alloy with carbon-reduction process |
| PCT/RU2009/000261 WO2009145672A1 (en) | 2008-05-27 | 2009-05-25 | Method for making ferroalloys and a duplex furnace for carrying out said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008120854/02A RU2382089C1 (en) | 2008-05-27 | 2008-05-27 | Reprocessing method of ferrimanganese bases and concentrates with receiving of alloy with carbon-reduction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008120854A true RU2008120854A (en) | 2009-12-10 |
| RU2382089C1 RU2382089C1 (en) | 2010-02-20 |
Family
ID=41488845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008120854/02A RU2382089C1 (en) | 2008-05-27 | 2008-05-27 | Reprocessing method of ferrimanganese bases and concentrates with receiving of alloy with carbon-reduction process |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2382089C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2616562B1 (en) | 2010-09-15 | 2020-11-25 | Tata Steel Limited | Direct smelting process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139371A (en) * | 1974-06-27 | 1979-02-13 | Outokumpu Oy | Process and device for suspension smelting of finely divided oxide and/or sulfide ores and concentrates, especially copper and/or nickel concentrates rich in iron |
| US4252560A (en) * | 1978-11-21 | 1981-02-24 | Vanjukov Andrei V | Pyrometallurgical method for processing heavy nonferrous metal raw materials |
| RU2194781C2 (en) * | 2000-11-28 | 2002-12-20 | Московский государственный институт стали и сплавов (технологический университет) | Method of processing raw materials containing nonferrous metals and iron |
-
2008
- 2008-05-27 RU RU2008120854/02A patent/RU2382089C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2382089C1 (en) | 2010-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20120528 |