AU690737B2 - Process for the heat treatment of fine-grained iron ore and for the conversion of the heat-treated iron ore to mettalic iron - Google Patents
Process for the heat treatment of fine-grained iron ore and for the conversion of the heat-treated iron ore to mettalic iron Download PDFInfo
- Publication number
- AU690737B2 AU690737B2 AU34306/95A AU3430695A AU690737B2 AU 690737 B2 AU690737 B2 AU 690737B2 AU 34306/95 A AU34306/95 A AU 34306/95A AU 3430695 A AU3430695 A AU 3430695A AU 690737 B2 AU690737 B2 AU 690737B2
- Authority
- AU
- Australia
- Prior art keywords
- fluidised bed
- gas
- heat
- particles
- stage
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 110
- 238000000034 method Methods 0.000 title claims description 59
- 230000008569 process Effects 0.000 title claims description 57
- 229910052742 iron Inorganic materials 0.000 title claims description 46
- 238000010438 heat treatment Methods 0.000 title claims description 19
- 238000006243 chemical reaction Methods 0.000 title claims description 11
- 239000007789 gas Substances 0.000 claims description 144
- 230000009467 reduction Effects 0.000 claims description 72
- 239000007787 solid Substances 0.000 claims description 60
- 239000002245 particle Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 35
- 229910052799 carbon Inorganic materials 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000000725 suspension Substances 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000008187 granular material Substances 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 235000013980 iron oxide Nutrition 0.000 claims description 8
- 238000005728 strengthening Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 5
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 235000009917 Crataegus X brevipes Nutrition 0.000 claims 1
- 235000013204 Crataegus X haemacarpa Nutrition 0.000 claims 1
- 235000009685 Crataegus X maligna Nutrition 0.000 claims 1
- 235000009444 Crataegus X rubrocarnea Nutrition 0.000 claims 1
- 235000009486 Crataegus bullatus Nutrition 0.000 claims 1
- 235000017181 Crataegus chrysocarpa Nutrition 0.000 claims 1
- 235000009682 Crataegus limnophila Nutrition 0.000 claims 1
- 235000004423 Crataegus monogyna Nutrition 0.000 claims 1
- 240000000171 Crataegus monogyna Species 0.000 claims 1
- 235000002313 Crataegus paludosa Nutrition 0.000 claims 1
- 235000009840 Crataegus x incaedua Nutrition 0.000 claims 1
- 239000000428 dust Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 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 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005029 sieve analysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 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
- 239000003077 lignite Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000002699 waste material Substances 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
-
- 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
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4437549A DE4437549C2 (de) | 1994-10-20 | 1994-10-20 | Verfahren zur Herstellung von metallischem Eisen aus feinkörnigem Eisenerz |
| DE44437549 | 1994-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU3430695A AU3430695A (en) | 1996-05-02 |
| AU690737B2 true AU690737B2 (en) | 1998-04-30 |
Family
ID=6531290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU34306/95A Expired AU690737B2 (en) | 1994-10-20 | 1995-10-18 | Process for the heat treatment of fine-grained iron ore and for the conversion of the heat-treated iron ore to mettalic iron |
Country Status (6)
| Country | Link |
|---|---|
| AU (1) | AU690737B2 (de) |
| BR (1) | BR9504492A (de) |
| DE (1) | DE4437549C2 (de) |
| MY (1) | MY115972A (de) |
| TW (1) | TW297049B (de) |
| ZA (1) | ZA958896B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5674308A (en) * | 1994-08-12 | 1997-10-07 | Midrex International B.V. Rotterdam, Zurich Branch | Spouted bed circulating fluidized bed direct reduction system and method |
| DE19711629C2 (de) * | 1997-03-20 | 2000-01-13 | Ferrostaal Ag | Verfahren und Vorrichtung zur Vorbereitung von Feinerzen für die Direktreduktion |
| DE19718136C2 (de) * | 1997-04-30 | 2003-02-13 | Outokumpu Oy | Verfahren zum thermischen Behandeln von körnigem Eisenerz vor der Reduktion |
| DE19960575A1 (de) * | 1999-12-15 | 2001-06-21 | Krupp Polysius Ag | Verfahren und Anlage zur Reduktion von Feinerzen |
| JP2003517097A (ja) * | 1999-12-16 | 2003-05-20 | ポーハング アイアン アンド スティール シーオー．，エルティディ． | 流動層型還元操業における微細な鉄鉱石のエルトリエーションロスを小さくするための方法 |
| DE10319625B3 (de) * | 2003-05-02 | 2004-10-14 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von eisenoxidhaltigen Feststoffen |
| DE10343662B4 (de) * | 2003-09-18 | 2005-10-27 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung titanhaltiger Feststoffe |
| DE102012005454B4 (de) * | 2012-03-20 | 2020-06-18 | Outotec Oyj | Verfahren und Vorrichtung zur Herstellung von gehärteten Granalien aus eisenhaltigen Partikeln |
| DE102021112922A1 (de) | 2021-06-02 | 2022-12-08 | Thyssenkrupp Steel Europe Ag | Verfahren zur Direktreduktion von Eisenerz |
| CN114941046A (zh) * | 2022-03-28 | 2022-08-26 | 北京科技大学 | 一种基于循环流化床的氢气直接还原铁矿石的系统及方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4307484A1 (de) * | 1993-03-10 | 1994-09-15 | Metallgesellschaft Ag | Verfahren zur Direktreduktion von eisenoxidhaltigen Materialien mit festen kohlenstoffhaltigen Reduktionsmitteln |
| DE4410093C1 (de) * | 1994-03-24 | 1995-03-09 | Metallgesellschaft Ag | Verfahren zur Direktreduktion von Eisenoxide enthaltenden Stoffen |
| DE4320359C1 (de) * | 1993-06-19 | 1994-10-20 | Metallgesellschaft Ag | Verfahren zur Direktreduktion von Eisenoxide enthaltenden Stoffen zu Eisenschwamm und Aufkohlung zu Fe¶3¶C |
-
1994
- 1994-10-20 DE DE4437549A patent/DE4437549C2/de not_active Expired - Lifetime
-
1995
- 1995-07-29 MY MYPI95002193A patent/MY115972A/en unknown
- 1995-10-18 AU AU34306/95A patent/AU690737B2/en not_active Expired
- 1995-10-20 ZA ZA958896A patent/ZA958896B/xx unknown
- 1995-10-20 BR BR9504492A patent/BR9504492A/pt not_active IP Right Cessation
- 1995-11-15 TW TW084112083A patent/TW297049B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| ZA958896B (en) | 1997-04-21 |
| DE4437549C2 (de) | 1996-08-08 |
| AU3430695A (en) | 1996-05-02 |
| TW297049B (de) | 1997-02-01 |
| BR9504492A (pt) | 1997-05-20 |
| DE4437549A1 (de) | 1996-04-25 |
| MY115972A (en) | 2003-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Assignment registered |
Owner name: OUTOKUMPU OYJ Free format text: FORMER OWNER WAS: METALLGESELLSCHAFT AKTIENGESELLSCHAFT |