CL2023002936A1 - Iron Ore Pellet Production Method - Google Patents
Iron Ore Pellet Production MethodInfo
- Publication number
- CL2023002936A1 CL2023002936A1 CL2023002936A CL2023002936A CL2023002936A1 CL 2023002936 A1 CL2023002936 A1 CL 2023002936A1 CL 2023002936 A CL2023002936 A CL 2023002936A CL 2023002936 A CL2023002936 A CL 2023002936A CL 2023002936 A1 CL2023002936 A1 CL 2023002936A1
- Authority
- CL
- Chile
- Prior art keywords
- iron ore
- production method
- pellets
- pellet production
- ore pellet
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052742 iron Inorganic materials 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000008188 pellet Substances 0.000 abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 229910000514 dolomite Inorganic materials 0.000 abstract 2
- 239000010459 dolomite Substances 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 238000010411 cooking Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/216—Sintering; Agglomerating in rotary furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Abstract
Según un aspecto de la presente invención, un método para producir pellets de mineral de hierro utilizados para el funcionamiento de un alto horno que tienen una relación de masas CaO/SiO2 mayor o igual a 0,8 y una relación de masas MgO/SiO2 mayor o igual a 0,4, que comprende: la formación de pellets verdes añadiendo, a un material de mineral de hierro y dolomita, agua para su uso en la formación de pellets; y una etapa de cocción de los pellets verdes, en la que la dolomita tiene la propiedad de estar presente en una forma muy fina dentro de la estructura de los pellets verdes.According to one aspect of the present invention, a method for producing iron ore pellets used for the operation of a blast furnace having a mass ratio CaO/SiO2 greater than or equal to 0.8 and a mass ratio MgO/SiO2 greater or equal to 0.4, comprising: the formation of green pellets by adding, to an iron ore and dolomite material, water for use in the formation of pellets; and a stage of cooking the green pellets, in which the dolomite has the property of being present in a very fine form within the structure of the green pellets.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021062578A JP2022158000A (en) | 2021-04-01 | 2021-04-01 | Manufacturing method of iron ore pellet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2023002936A1 true CL2023002936A1 (en) | 2024-03-15 |
Family
ID=83457608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2023002936A CL2023002936A1 (en) | 2021-04-01 | 2023-09-29 | Iron Ore Pellet Production Method |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20240158886A1 (en) |
| EP (1) | EP4303329A1 (en) |
| JP (1) | JP2022158000A (en) |
| CN (1) | CN116981785A (en) |
| AU (1) | AU2021439033A1 (en) |
| BR (1) | BR112023018032A2 (en) |
| CA (1) | CA3214315A1 (en) |
| CL (1) | CL2023002936A1 (en) |
| SE (1) | SE2351219A1 (en) |
| WO (1) | WO2022208904A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354200A (en) * | 1976-10-28 | 1978-05-17 | Sumitomo Cement Co | Process for producing high class calcium carbonate |
| US4260412A (en) * | 1980-01-16 | 1981-04-07 | Midrex Corporation | Method of producing direct reduced iron with fluid bed coal gasification |
| JPS63153228A (en) * | 1986-12-15 | 1988-06-25 | Nkk Corp | Method for coating green pellet for agglomerate with coke breeze |
| JPH01136936A (en) | 1987-11-20 | 1989-05-30 | Kobe Steel Ltd | Manufacture of self-fluxing pellet for charging to blast furnace |
| US20040221426A1 (en) * | 1997-10-30 | 2004-11-11 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method of producing iron oxide pellets |
| JP4418836B2 (en) * | 2007-12-20 | 2010-02-24 | 株式会社神戸製鋼所 | Self-fluxing pellets for blast furnace and manufacturing method thereof |
-
2021
- 2021-04-01 JP JP2021062578A patent/JP2022158000A/en active Pending
- 2021-05-13 CN CN202180095893.0A patent/CN116981785A/en active Pending
- 2021-05-13 CA CA3214315A patent/CA3214315A1/en active Pending
- 2021-05-13 SE SE2351219A patent/SE2351219A1/en unknown
- 2021-05-13 EP EP21935064.2A patent/EP4303329A1/en active Pending
- 2021-05-13 US US18/552,247 patent/US20240158886A1/en active Pending
- 2021-05-13 AU AU2021439033A patent/AU2021439033A1/en active Pending
- 2021-05-13 BR BR112023018032A patent/BR112023018032A2/en unknown
- 2021-05-13 WO PCT/JP2021/018288 patent/WO2022208904A1/en active Application Filing
-
2023
- 2023-09-29 CL CL2023002936A patent/CL2023002936A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR112023018032A2 (en) | 2023-10-24 |
| WO2022208904A1 (en) | 2022-10-06 |
| SE2351219A1 (en) | 2023-10-25 |
| AU2021439033A1 (en) | 2023-10-19 |
| US20240158886A1 (en) | 2024-05-16 |
| JP2022158000A (en) | 2022-10-14 |
| EP4303329A1 (en) | 2024-01-10 |
| CA3214315A1 (en) | 2022-10-06 |
| CN116981785A (en) | 2023-10-31 |
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