CA1110454A - Method and apparatus for reducing particulate iron oxide to molten iron with solid reductant - Google Patents
Method and apparatus for reducing particulate iron oxide to molten iron with solid reductantInfo
- Publication number
- CA1110454A CA1110454A CA322,944A CA322944A CA1110454A CA 1110454 A CA1110454 A CA 1110454A CA 322944 A CA322944 A CA 322944A CA 1110454 A CA1110454 A CA 1110454A
- Authority
- CA
- Canada
- Prior art keywords
- furnace
- burden
- top gas
- electrode
- gas
- 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 abstract description 61
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 27
- 239000007787 solid Substances 0.000 title claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 9
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 76
- 239000000463 material Substances 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 235000019738 Limestone Nutrition 0.000 claims description 6
- 239000006028 limestone Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000003134 recirculating effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000003077 lignite Substances 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 239000000047 product Substances 0.000 claims 1
- 238000013022 venting Methods 0.000 claims 1
- 239000008188 pellet Substances 0.000 abstract description 13
- 239000004449 solid propellant Substances 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001465 metallisation Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000003039 volatile agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000004858 feed analysis Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000011593 sulfur 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
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
- C21B13/026—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state heated electrically
-
- 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)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/892,564 US4179278A (en) | 1977-02-16 | 1978-04-03 | Method for reducing particulate iron oxide to molten iron with solid reductant |
| US892,564 | 1978-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1110454A true CA1110454A (en) | 1981-10-13 |
Family
ID=25400142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA322,944A Expired CA1110454A (en) | 1978-04-03 | 1979-03-07 | Method and apparatus for reducing particulate iron oxide to molten iron with solid reductant |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS54138809A (xx) |
| AR (1) | AR217910A1 (xx) |
| AT (1) | AT367455B (xx) |
| AU (1) | AU523466B2 (xx) |
| BR (1) | BR7901905A (xx) |
| CA (1) | CA1110454A (xx) |
| DE (1) | DE2913340A1 (xx) |
| ES (1) | ES479236A1 (xx) |
| GB (1) | GB2017883B (xx) |
| GR (1) | GR66661B (xx) |
| IN (1) | IN150938B (xx) |
| IT (1) | IT1113339B (xx) |
| KE (1) | KE3318A (xx) |
| NZ (1) | NZ190049A (xx) |
| PH (2) | PH14626A (xx) |
| PL (1) | PL214642A1 (xx) |
| PT (1) | PT69420A (xx) |
| TR (1) | TR20987A (xx) |
| ZA (1) | ZA791385B (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62122077U (xx) * | 1986-01-21 | 1987-08-03 | ||
| JPS62122078U (xx) * | 1986-01-21 | 1987-08-03 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1057213A (en) * | 1912-04-09 | 1913-03-25 | George Hillard Benjamin | Electric furnace and method of operating same. |
| US1937064A (en) * | 1925-01-05 | 1933-11-28 | Pittsburgh Res Corp | Method of treating metals |
| DE2210468C3 (de) * | 1972-03-04 | 1979-03-22 | Kloeckner-Werke Ag, 4100 Duisburg | Verfahren zum kontinuierlichen Herstellen von Stahl aus Erz o. dgl |
| US3948640A (en) * | 1973-04-30 | 1976-04-06 | Boliden Aktiebolag | Method of carrying out heat-requiring chemical and/or physical processes |
| DE2327073C2 (de) * | 1973-05-26 | 1974-11-21 | Kloeckner-Werke Ag, 4100 Duisburg | Verfahren und Vorrichtung zum Einschmelzen von Schrott oder dgl |
| US3844766A (en) * | 1973-12-26 | 1974-10-29 | Midland Ross Corp | Process for reducing iron oxide to metallic sponge iron with liquid or solid fuels |
| US4082543A (en) * | 1977-02-16 | 1978-04-04 | Midrex Corporation | Method for reducing particulate iron oxide to metallic iron with solid reductant |
-
1979
- 1979-03-07 CA CA322,944A patent/CA1110454A/en not_active Expired
- 1979-03-20 AU AU45266/79A patent/AU523466B2/en not_active Ceased
- 1979-03-21 IN IN278/CAL/79A patent/IN150938B/en unknown
- 1979-03-22 ZA ZA791385A patent/ZA791385B/xx unknown
- 1979-03-22 AR AR275907A patent/AR217910A1/es active
- 1979-03-26 GB GB7910504A patent/GB2017883B/en not_active Expired
- 1979-03-28 PH PH22330A patent/PH14626A/en unknown
- 1979-03-29 BR BR7901905A patent/BR7901905A/pt unknown
- 1979-03-30 AT AT0239579A patent/AT367455B/de not_active IP Right Cessation
- 1979-03-30 NZ NZ190049A patent/NZ190049A/xx unknown
- 1979-03-30 PT PT69420A patent/PT69420A/pt unknown
- 1979-03-30 TR TR20987A patent/TR20987A/xx unknown
- 1979-04-02 JP JP3969079A patent/JPS54138809A/ja active Granted
- 1979-04-02 IT IT21495/79A patent/IT1113339B/it active
- 1979-04-03 DE DE19792913340 patent/DE2913340A1/de active Granted
- 1979-04-03 GR GR58775A patent/GR66661B/el unknown
- 1979-04-03 PL PL21464279A patent/PL214642A1/xx unknown
- 1979-04-03 ES ES479236A patent/ES479236A1/es not_active Expired
- 1979-11-23 PH PH23320A patent/PH15052A/en unknown
-
1983
- 1983-08-08 KE KE3318A patent/KE3318A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR66661B (xx) | 1981-04-07 |
| PH14626A (en) | 1981-10-12 |
| IT1113339B (it) | 1986-01-20 |
| KE3318A (en) | 1983-08-26 |
| IT7921495A0 (it) | 1979-04-02 |
| PT69420A (en) | 1979-04-01 |
| GB2017883A (en) | 1979-10-10 |
| IN150938B (xx) | 1983-01-22 |
| AR217910A1 (es) | 1980-04-30 |
| ATA239579A (de) | 1981-11-15 |
| PH15052A (en) | 1982-05-20 |
| DE2913340C2 (xx) | 1987-10-15 |
| PL214642A1 (xx) | 1980-01-28 |
| DE2913340A1 (de) | 1979-10-11 |
| AU523466B2 (en) | 1982-07-29 |
| BR7901905A (pt) | 1979-11-27 |
| AT367455B (de) | 1982-07-12 |
| JPS54138809A (en) | 1979-10-27 |
| JPS5757929B2 (xx) | 1982-12-07 |
| ES479236A1 (es) | 1980-01-16 |
| ZA791385B (en) | 1980-05-28 |
| NZ190049A (en) | 1980-08-26 |
| TR20987A (tr) | 1983-03-25 |
| AU4526679A (en) | 1979-10-18 |
| GB2017883B (en) | 1982-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |