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公开(公告)号：EP0843740A4
公开(公告)日：1998-10-07
申请号：EP96925608
申请日：1996-08-07
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER
CPC classification number: C22B1/2406 , C21B13/08 , C21B13/105 , C22B5/10 , Y10S75/961
Abstract: A process for at least partially reducing iron oxides comprises forming a bed of reactants on a hearth of a rotary hearth furnace, the reactants comprising (a) mixture of iron ore fines and particulate carbonaceous material and/or (b) micro-agglomerates of iron ore fines and particulate carbonaceous material. The mixture and/or the micro-agglomerates are heated in the rotary hearth furnace to at least reduce the iron oxides. The "micro-agglomerates" are agglomerates that are less than 1400 microns (and preferably more than 500 microns) in diameter. The at least partially reduced product is preferably used in the production of metallic iron. An apparatus for at least partially reducing iron oxides is also claimed. The process permits operation of the rotary hearth furnace without requiring pelletisation of iron oxide fines and coal.
Abstract translation: 一种至少部分还原铁氧化物的方法包括在旋转炉底炉的炉膛上形成反应物床，反应物包括（a）铁矿粉和颗粒状含碳材料的混合物和/或（b）铁的微团聚体 矿石细粒和颗粒状碳质材料。 在转底炉中加热混合物和/或微团聚体以至少还原氧化铁。 “微团聚体”是直径小于1400微米（并且优选大于500微米）的团聚体。 至少部分还原的产物优选用于生产金属铁。 本发明还要求保护用于至少部分还原氧化铁的设备。 该方法允许旋转炉底炉的操作，而不需要氧化铁细粉和煤的造粒。
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2.发明公开DUPLEX PROCEDURE FOR THE PRODUCTION OF METALS AND METAL ALLOYS FROM OXIDIC METAL ORES 失效双重工艺用于生产金属和金属合金FROM氧化金属矿
公开(公告)号：EP0862657A4
公开(公告)日：1999-06-02
申请号：EP96934219
申请日：1996-11-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , DRY RODNEY JAMES
IPC: C22B1/00 , C21B5/00 , C21B7/00 , C21B7/14 , C21B7/16 , C21B11/00 , C21B11/02 , C21B13/00 , C21B13/02 , C21B13/14 , C22B5/10 , C22B5/14 , C22B5/18 , F27B1/10 , F27B1/16 , F27B1/20 , F27B1/21 , F27B15/08 , F27B15/09 , F27B19/04
CPC classification number: F27B19/04 , C21B13/143 , C21B2100/60 , C21B2100/64 , Y02P10/136
Abstract: The production of highly metallised feed, an intermediate product produced solely by gaseous reductants in two stage reduction processes of that kind, encounters sticking problems, which interfere with continuous processing and productivity. This problem has been overcome by exploiting a high volatile carbonaceous material, such as coal, as the reducing agent for the (partially reduced) oxide ore starting material in the solid state prereduction stage of a duplex process, in which the final stage consists of smelting, to produce the final metal (alloy). Intermediate products of the first stage are char from the coal, which avoids the sticking problem, partially reduced ore and CO and H2, which participate in the prereduction. The process has particular application to iron ores, such as haematite and magnetite and similar derivatives, namely, chromite and oxidic nickel ores. The process may be extended to a triplex, which includes drying, preheating and partial reduction in the first stage, followed by further partial reduction and finally the smelting step. Plant for the process may consist of a shaft furnace or fluidised bed for the prereduction sequence, preferably the latter. For the triplex process, two associated fluidised beds (3, 5) are preferred. Any suitable furnace (7) may be used for smelting, as long as it is equipped for the injection of partially reduced ore, char and fluxes, hot air lancing, off gas and the tapping of molten metal and slag. The final stage of solid state reduction takes place at a temperature of at least 550 DEG C, preferably 750-900 DEG C. At least 50 % of metallisation is essential for satisfactory processing, preferably at least 80 %.
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3.发明公开A METHOD OF PRODUCING METALS AND METAL ALLOYS 失效VERFAHREN ZUR HERSTELLUNG VON METALLEN UND METALL-LEGIERUNGEN
公开(公告)号：EP0819182A4
公开(公告)日：1998-09-30
申请号：EP96907949
申请日：1996-04-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , BATTERHAM ROBIN JOHN , DRY ROD JAMES
CPC classification number: F27B3/225 , C21B13/0013 , C21B13/0026 , C21C5/28 , C21C7/0037 , F27D3/18 , Y02P10/136
Abstract: A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterised by injecting a carrier gas and a solid carbonaceous material and/or metal oxides into the molten bath from a side of the vessel that is in contact with the molten bath or from above the molten bath so that the solids penetrate the molten bath and cause molten metal to be projected into the gas space above the molten bath to form a transition zone. The method is also characterised by injecting an oxygen-containing gas into the gas space to post-combust reaction gases released from the molten bath into the transition zone.
Abstract translation: 公开了一种用于在包含具有金属层和熔渣层的熔池的冶金容器中由金属氧化物生产金属和金属合金的方法和设备。 该方法的特征在于，从容器的与熔池接触的一侧或从熔池的上方注入载气和固体碳质材料和/或金属氧化物到熔池中，使得固体渗透熔融物 并使熔融金属投射到熔池上方的气体空间中以形成过渡区。 该方法的特征还在于向气体空间注入含氧气体以将从熔池释放的反应气体后燃烧到过渡区中。
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公开(公告)号：AU780707B2
公开(公告)日：2005-04-14
申请号：AU7239600
申请日：2000-12-20
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER
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公开(公告)号：AT217349T
公开(公告)日：2002-05-15
申请号：AT96934219
申请日：1996-11-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , DRY RODNEY JAMES
IPC: C22B1/00 , C21B5/00 , C21B7/00 , C21B7/14 , C21B7/16 , C21B11/00 , C21B11/02 , C21B13/00 , C21B13/02 , C21B13/14 , C22B5/10 , C22B5/14 , C22B5/18 , F27B1/10 , F27B1/16 , F27B1/20 , F27B1/21 , F27B15/08 , F27B15/09 , F27B19/04
Abstract: The production of highly metallized feed, an intermediate product produced solely by gaseous reductants in two stage reduction processes of that kind, encounters sticking problems, which interfere with continuous processing and productivity. This problem has been overcome by exploiting a high volatile carbonaceous material, such as coal, as the reducing agent for the (partially reduced) oxide ore starting material in the solid state prereduction stage of a duplex process, in which the final stage consists of smelting, to produce the final metal (alloy). Intermediate products of the first stage are char from the coal, which avoids the sticking problem, partially reduced ore and CO and H2, which participate in the prereduction. The process has particular application to iron ores, such as haematite and magnetite and similar derivatives, namely, chromite and oxidic nickel ores. The process may be extended to a triplex, which includes drying, preheating and partial reduction in the first stage, followed by further partial reduction and finally the smelting step. The final stage of solid state reduction takes place at a temperature of at least 550° C., preferably 750-900° C. At least 50% of metallization is essential for satisfactory processing, preferably at least 80%.
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Patent Agency Ranking
公开(公告)号：AU718296B2
公开(公告)日：2000-04-13
申请号：AU7269596
申请日：1996-11-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , DRY RODNEY JAMES
IPC: C22B1/00 , C21B5/00 , C21B7/00 , C21B7/14 , C21B7/16 , C21B11/00 , C21B11/02 , C21B13/00 , C21B13/02 , C21B13/14 , C22B5/10 , C22B5/14 , C22B5/18 , F27B1/10 , F27B1/16 , F27B1/20 , F27B1/21 , F27B15/08 , F27B15/09 , F27B19/04
Abstract: The production of highly metallized feed, an intermediate product produced solely by gaseous reductants in two stage reduction processes of that kind, encounters sticking problems, which interfere with continuous processing and productivity. This problem has been overcome by exploiting a high volatile carbonaceous material, such as coal, as the reducing agent for the (partially reduced) oxide ore starting material in the solid state prereduction stage of a duplex process, in which the final stage consists of smelting, to produce the final metal (alloy). Intermediate products of the first stage are char from the coal, which avoids the sticking problem, partially reduced ore and CO and H2, which participate in the prereduction. The process has particular application to iron ores, such as haematite and magnetite and similar derivatives, namely, chromite and oxidic nickel ores. The process may be extended to a triplex, which includes drying, preheating and partial reduction in the first stage, followed by further partial reduction and finally the smelting step. The final stage of solid state reduction takes place at a temperature of at least 550° C., preferably 750-900° C. At least 50% of metallization is essential for satisfactory processing, preferably at least 80%.
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公开(公告)号：AU716161B2
公开(公告)日：2000-02-17
申请号：AU6607796
申请日：1996-08-07
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER
Abstract: PCT No. PCT/AU96/00496 Sec. 371 Date Jun. 5, 1998 Sec. 102(e) Date Jun. 5, 1998 PCT Filed Aug. 7, 1996 PCT Pub. No. WO97/06281 PCT Pub. Date Feb. 20, 1997A process for at least partially reducing iron oxides comprises forming a bed of reactants on a hearth of a rotary hearth furnace, the reactants comprising (a) mixture of iron ore fines and particulate carbonaceous material and/or (b) micro-agglomerates of iron ore fines and particulate carbonaceous material. The mixture and/or the micro-agglomerates are heated in the rotary hearth furnace to at least reduce the iron oxides. The "micro-agglomerates" are agglomerates that are less than 1400 microns (and preferably more than 500 microns) in diameter. The at least partially reduced product is preferably used in the production of metallic iron. An apparatus for at least partially reducing iron oxides is also claimed. The process permits operation of the rotary hearth furnace without requiring pelletisation of iron oxides fines and coal.
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公开(公告)号：AU6607796A
公开(公告)日：1997-03-05
申请号：AU6607796
申请日：1996-08-07
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER
Abstract: PCT No. PCT/AU96/00496 Sec. 371 Date Jun. 5, 1998 Sec. 102(e) Date Jun. 5, 1998 PCT Filed Aug. 7, 1996 PCT Pub. No. WO97/06281 PCT Pub. Date Feb. 20, 1997A process for at least partially reducing iron oxides comprises forming a bed of reactants on a hearth of a rotary hearth furnace, the reactants comprising (a) mixture of iron ore fines and particulate carbonaceous material and/or (b) micro-agglomerates of iron ore fines and particulate carbonaceous material. The mixture and/or the micro-agglomerates are heated in the rotary hearth furnace to at least reduce the iron oxides. The "micro-agglomerates" are agglomerates that are less than 1400 microns (and preferably more than 500 microns) in diameter. The at least partially reduced product is preferably used in the production of metallic iron. An apparatus for at least partially reducing iron oxides is also claimed. The process permits operation of the rotary hearth furnace without requiring pelletisation of iron oxides fines and coal.
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公开(公告)号：AU5138196A
公开(公告)日：1996-10-23
申请号：AU5138196
申请日：1996-04-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , BATTERHAM ROBIN JOHN , DRY ROD JAMES
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公开(公告)号：CA2217353A1
公开(公告)日：1996-10-10
申请号：CA2217353
申请日：1996-04-04
Applicant: TECH RESOURCES PTY LTD
Inventor： INNES JOHN ALEXANDER , BATTERHAM ROBIN JOHN , DRY ROD JAMES
IPC: C21C5/32 , C21B11/00 , C21B13/00 , C21C5/28 , C21C7/00 , F27B3/22 , F27D3/18 , C22B5/10 , C22B5/14
Abstract: A method and an apparatus for producing metals and metal alloys from metal oxides in a metallurgical vessel containing a molten bath having a metal layer and a slag layer is disclosed. The method is characterised by injecting a carrier gas and a solid carbonaceous material and/or metal oxides into the molten bath from a side of the vessel that is in contact with the molten bath or from above the molten bath so that the solids penetrate the molten bath and cause molten metal to be projected into the gas space above the molten bath to form a transition zone. The method is also characterised by injecting an oxygen-containing gas into the gas space to post-combust reaction gases released from the molten bath into the transition zone.
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