CA3214315A1 - Method for producing iron ore pellets - Google Patents
Method for producing iron ore pellets Download PDFInfo
- Publication number
- CA3214315A1 CA3214315A1 CA3214315A CA3214315A CA3214315A1 CA 3214315 A1 CA3214315 A1 CA 3214315A1 CA 3214315 A CA3214315 A CA 3214315A CA 3214315 A CA3214315 A CA 3214315A CA 3214315 A1 CA3214315 A1 CA 3214315A1
- Authority
- CA
- Canada
- Prior art keywords
- iron ore
- dolomite
- pellets
- ore pellets
- equal
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 269
- 239000008188 pellet Substances 0.000 title claims abstract description 164
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 134
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 85
- 239000010459 dolomite Substances 0.000 claims abstract description 83
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 36
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 36
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 36
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 36
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 34
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010304 firing Methods 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005453 pelletization Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 22
- 238000001354 calcination Methods 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 16
- 239000002245 particle Substances 0.000 description 16
- 238000006722 reduction reaction Methods 0.000 description 16
- 230000009467 reduction Effects 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 238000001035 drying Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 238000006703 hydration reaction Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- 230000009257 reactivity Effects 0.000 description 6
- 229910000805 Pig iron Inorganic materials 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910001748 carbonate mineral Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 235000012254 magnesium hydroxide Nutrition 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- -1 calcium ferrite compound Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021062578A JP2022158000A (ja) | 2021-04-01 | 2021-04-01 | 鉄鉱石ペレットの製造方法 |
| JP2021-062578 | 2021-04-01 | ||
| PCT/JP2021/018288 WO2022208904A1 (ja) | 2021-04-01 | 2021-05-13 | 鉄鉱石ペレットの製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3214315A1 true CA3214315A1 (en) | 2022-10-06 |
Family
ID=83457608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3214315A Pending CA3214315A1 (en) | 2021-04-01 | 2021-05-13 | Method for producing iron ore pellets |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20240158886A1 (de) |
| EP (1) | EP4303329A1 (de) |
| JP (1) | JP2022158000A (de) |
| CN (1) | CN116981785A (de) |
| AU (1) | AU2021439033A1 (de) |
| BR (1) | BR112023018032A2 (de) |
| CA (1) | CA3214315A1 (de) |
| CL (1) | CL2023002936A1 (de) |
| SE (1) | SE2351219A1 (de) |
| WO (1) | WO2022208904A1 (de) |
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 (ja) * | 1986-12-15 | 1988-06-25 | Nkk Corp | 焼成塊成鉱用生ペレツトの粉コ−クス被覆方法 |
| JPH01136936A (ja) | 1987-11-20 | 1989-05-30 | Kobe Steel Ltd | 高炉装入用自溶性ペレットの製造方法 |
| US20040221426A1 (en) * | 1997-10-30 | 2004-11-11 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method of producing iron oxide pellets |
| JP4418836B2 (ja) * | 2007-12-20 | 2010-02-24 | 株式会社神戸製鋼所 | 高炉用自溶性ペレットおよびその製造方法 |
-
2021
- 2021-04-01 JP JP2021062578A patent/JP2022158000A/ja active Pending
- 2021-05-13 CN CN202180095893.0A patent/CN116981785A/zh 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/de 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/pt unknown
- 2021-05-13 WO PCT/JP2021/018288 patent/WO2022208904A1/ja active Application Filing
-
2023
- 2023-09-29 CL CL2023002936A patent/CL2023002936A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR112023018032A2 (pt) | 2023-10-24 |
| WO2022208904A1 (ja) | 2022-10-06 |
| SE2351219A1 (en) | 2023-10-25 |
| CL2023002936A1 (es) | 2024-03-15 |
| AU2021439033A1 (en) | 2023-10-19 |
| US20240158886A1 (en) | 2024-05-16 |
| JP2022158000A (ja) | 2022-10-14 |
| EP4303329A1 (de) | 2024-01-10 |
| CN116981785A (zh) | 2023-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20230920 |
|
| EEER | Examination request |
Effective date: 20230920 |
|
| EEER | Examination request |
Effective date: 20230920 |