NO752782L - - Google Patents
Info
- Publication number
- NO752782L NO752782L NO752782A NO752782A NO752782L NO 752782 L NO752782 L NO 752782L NO 752782 A NO752782 A NO 752782A NO 752782 A NO752782 A NO 752782A NO 752782 L NO752782 L NO 752782L
- Authority
- NO
- Norway
- Prior art keywords
- pellets
- iron ore
- reduction
- charge
- bentonite
- Prior art date
Links
- 239000008188 pellet Substances 0.000 claims description 61
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 239000012141 concentrate Substances 0.000 claims description 17
- 230000004907 flux Effects 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 10
- 229910000278 bentonite Inorganic materials 0.000 claims description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000010459 dolomite Substances 0.000 claims description 5
- 229910000514 dolomite Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 1
- 230000009467 reduction Effects 0.000 description 34
- 239000007789 gas Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 8
- 238000005054 agglomeration Methods 0.000 description 7
- 230000002776 aggregation Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 235000019738 Limestone Nutrition 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
-
- 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
-
- 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
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/496,223 US3957486A (en) | 1974-08-09 | 1974-08-09 | Method of reducing iron ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO752782L true NO752782L (is") | 1976-02-10 |
Family
ID=23971739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO752782A NO752782L (is") | 1974-08-09 | 1975-08-08 |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3957486A (is") |
| JP (1) | JPS5142008A (is") |
| AR (1) | AR209615A1 (is") |
| AU (1) | AU498454B2 (is") |
| BE (1) | BE831873A (is") |
| BR (1) | BR7505004A (is") |
| CA (1) | CA1053006A (is") |
| DD (1) | DD119616A5 (is") |
| DE (1) | DE2535498A1 (is") |
| EG (1) | EG12106A (is") |
| ES (1) | ES440031A1 (is") |
| FR (1) | FR2281428A1 (is") |
| GB (1) | GB1514777A (is") |
| IT (1) | IT1044660B (is") |
| MX (1) | MX2982E (is") |
| NO (1) | NO752782L (is") |
| SE (1) | SE415277B (is") |
| TR (1) | TR19288A (is") |
| ZM (1) | ZM11875A1 (is") |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2398113A1 (fr) * | 1977-07-18 | 1979-02-16 | Sumitomo Metal Ind | Procede de production de granules de fer reduit a partir de poussiere contenant du fer |
| US4380328A (en) * | 1979-01-29 | 1983-04-19 | Kobe Steel, Ltd. | Shaft furnace for reducing ores |
| EA001158B1 (ru) * | 1996-03-15 | 2000-10-30 | Кабусики Кайся Кобе Сейко Сё | Способ и устройство для получения металлического железа |
| US8690986B2 (en) * | 2010-09-03 | 2014-04-08 | Forest Vue Research, Llc | Method for simultaneously producing iron, coke, and power |
| WO2017006200A1 (en) | 2015-07-07 | 2017-01-12 | Sabic Global Technologies B.V. | Coated iron ore pellets and a process of making and reducing the same to form reduced iron pellets |
| CN120060583B (zh) * | 2025-04-28 | 2025-07-22 | 中南大学 | 一种基于氢基竖炉逐级还原降低球团矿富氢还原膨胀的方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2511400A (en) * | 1946-07-23 | 1950-06-13 | Brassert & Co | Preparation of metallic oxides for reduction |
| US2750272A (en) * | 1950-06-05 | 1956-06-12 | Allis Chalmers Mfg Co | Process for production of hard burned agglomerates of fine magnetite ore |
| JPS5020539B1 (is") * | 1969-05-03 | 1975-07-16 | ||
| US3759693A (en) * | 1969-08-18 | 1973-09-18 | Kobe Steel Ltd | Method of producing reduced iron ore pellets |
-
1974
- 1974-08-09 US US05/496,223 patent/US3957486A/en not_active Expired - Lifetime
-
1975
- 1975-07-29 BE BE158736A patent/BE831873A/xx unknown
- 1975-07-29 AU AU83505/75A patent/AU498454B2/en not_active Expired
- 1975-08-05 ES ES440031A patent/ES440031A1/es not_active Expired
- 1975-08-06 SE SE7508883A patent/SE415277B/xx not_active Application Discontinuation
- 1975-08-06 BR BR7505004*A patent/BR7505004A/pt unknown
- 1975-08-06 JP JP50096279A patent/JPS5142008A/ja active Pending
- 1975-08-07 FR FR7524712A patent/FR2281428A1/fr active Granted
- 1975-08-07 AR AR259937A patent/AR209615A1/es active
- 1975-08-07 GB GB33069/75A patent/GB1514777A/en not_active Expired
- 1975-08-08 NO NO752782A patent/NO752782L/no unknown
- 1975-08-08 DD DD187764A patent/DD119616A5/xx unknown
- 1975-08-08 IT IT26261/75A patent/IT1044660B/it active
- 1975-08-08 CA CA233,113A patent/CA1053006A/en not_active Expired
- 1975-08-08 DE DE19752535498 patent/DE2535498A1/de not_active Withdrawn
- 1975-08-08 MX MX008325U patent/MX2982E/es unknown
- 1975-08-09 TR TR19288A patent/TR19288A/xx unknown
- 1975-08-09 EG EG480/75A patent/EG12106A/xx active
- 1975-08-12 ZM ZM118/75A patent/ZM11875A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU8350575A (en) | 1977-02-03 |
| ZM11875A1 (en) | 1976-05-21 |
| FR2281428A1 (fr) | 1976-03-05 |
| AR209615A1 (es) | 1977-05-13 |
| CA1053006A (en) | 1979-04-24 |
| BE831873A (fr) | 1976-01-29 |
| FR2281428B1 (is") | 1978-12-08 |
| DE2535498A1 (de) | 1976-02-26 |
| ES440031A1 (es) | 1977-06-01 |
| EG12106A (en) | 1978-06-30 |
| AU498454B2 (en) | 1979-03-15 |
| BR7505004A (pt) | 1976-08-03 |
| TR19288A (tr) | 1978-11-21 |
| IT1044660B (it) | 1980-04-21 |
| DD119616A5 (is") | 1976-05-05 |
| JPS5142008A (en) | 1976-04-09 |
| SE7508883L (sv) | 1976-02-10 |
| US3957486A (en) | 1976-05-18 |
| SE415277B (sv) | 1980-09-22 |
| GB1514777A (en) | 1978-06-21 |
| MX2982E (es) | 1980-01-21 |
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