Multi-step reduction without melting

Industry

CPC
C21B13/146

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21BMANUFACTURE OF IRON OR STEEL C21B13/00Making spongy iron or liquid steel, by direct processes

Current Industry

C21B13/146Multi-step reduction without melting

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Device for manufacturing molten iron
- Patent number 12,084,731
- Issue date Sep 10, 2024
- POSCO Co., Ltd
- Chang Kuk Ko
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Multi-stage suspension magnetizing roasting-magnetic separation sys...
- Patent number 10,543,491
- Issue date Jan 28, 2020
- Northeastern University
- Yuexin Han
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Molten iron manufacturing apparatus and molten iron manufacturing m...
- Patent number 10,422,582
- Issue date Sep 24, 2019
- Posco
- Jonghwun Jung
- C21 - METALLURGY OF IRON
Information Patent Grant
Methods and systems for increasing the carbon content of sponge iro...
- Patent number 10,316,376
- Issue date Jun 11, 2019
- Midrex Technologies, Inc.
- Mirmohammadyousef Motamedhashemi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of top gas in direct reduction processes
- Patent number 10,260,117
- Issue date Apr 16, 2019
- Saudi Basic Industries Corporation
- Ahmed H. Al-Nazr
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
System and method for fluidized bed reduction of powdered iron ore
- Patent number 10,233,510
- Issue date Mar 19, 2019
- Institute of Process Engineering, Chinese Academy of Sciences
- Qingshan Zhu
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for preparing a metallic article having an other additive co...
- Patent number 10,100,386
- Issue date Oct 16, 2018
- General Electric Company
- Andrew Philip Woodfield
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
System and method for fluidized direct reduction of iron ore concen...
- Patent number 10,100,379
- Issue date Oct 16, 2018
- Institute of Process Engineering, Chinese Academy of Sciences
- Qingshan Zhu
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing direct reduction iron and reduction firing...
- Patent number 9,115,412
- Issue date Aug 25, 2015
- PANGANG GROUP COMPANY LTD.
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing direct reduction iron and reduction firing...
- Patent number 8,475,707
- Issue date Jul 2, 2013
- PanGang Group Company Ltd.
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for preparing a metallic article having an other additive co...
- Patent number 8,216,508
- Issue date Jul 10, 2012
- General Electric Company
- Andrew Philip Woodfield
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct reduction apparatus and process
- Patent number 7,947,107
- Issue date May 24, 2011
- Outotec Oyj
- Andreas Orth
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct reduction apparatus and process
- Patent number 7,824,603
- Issue date Nov 2, 2010
- Outotec Oyj
- Andreas Orth
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for reducing metal-oxygen compounds
- Patent number 7,591,874
- Issue date Sep 22, 2009
- Corus Technology B.V.
- Christiaan Johannes Kooij
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for fabricating a martensitic steel without any melting
- Patent number 7,553,383
- Issue date Jun 30, 2009
- General Electric Company
- Clifford Earl Shamblen
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for preparing a metallic article having an other additive co...
- Patent number 7,416,697
- Issue date Aug 26, 2008
- General Electric Company
- Andrew Philip Woodfield
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing sponge iron by direct reduction of iron-oxide...
- Patent number 6,143,053
- Issue date Nov 7, 2000
- Voest-Alpine Industrieanlagenbau GmbH
- Johann Reidetschlager
- C21 - METALLURGY OF IRON
Information Patent Grant
Plant and process for fluidized bed reduction of ore
- Patent number 5,192,486
- Issue date Mar 9, 1993
- Fior De Venezuela
- Roy H. Whipp
- C21 - METALLURGY OF IRON
Information Patent Grant
Plant and process for fluidized bed reduction of ore
- Patent number 5,082,251
- Issue date Jan 21, 1992
- Fior De Venezuela
- Roy H. Whipp
- C21 - METALLURGY OF IRON
Information Patent Grant
Process of producing sponge iron by a direct reduction of iron oxid...
- Patent number 4,443,250
- Issue date Apr 17, 1984
- Metallgesellschaft Aktiengesellschaft
- Kurt Meyer
- C21 - METALLURGY OF IRON
Information Patent Grant
Integrated process for thermal cracking of heavy oil and reduction...
- Patent number 4,334,920
- Issue date Jun 15, 1982
- Kobe Steel, Ltd.
- Kenji Mori
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for forming steel product from iron while avoiding the liqu...
- Patent number 4,306,901
- Issue date Dec 22, 1981
- Massachusetts Institute of Technology
- Julian Szekely
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for the reduction of iron oxide
- Patent number 4,294,609
- Issue date Oct 13, 1981
- Centro Ricerche Fiat S.p.A.
- Stefano Taricco
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct reduction process for producing reduced iron
- Patent number 4,268,303
- Issue date May 19, 1981
- Kobe Steel, Limited
- Dentaro Kaneko
- C21 - METALLURGY OF IRON
Information Patent Grant
Processes and apparatus for reducing and subsequently pelletizing m...
- Patent number 4,255,185
- Issue date Mar 10, 1981
- Polysius AG
- Hans-Gerd Schulte
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of preparing iron powder
- Patent number 4,054,443
- Issue date Oct 18, 1977
- Midrex Corporation
- Charles M. Jaco
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Desulfurization of iron oxide pellets
- Patent number 3,993,472
- Issue date Nov 23, 1976
- The Lummus Company
- Raymond H. Long
- C21 - METALLURGY OF IRON
Information Patent Grant
3890142
- Patent number 3,890,142
- Issue date Jun 17, 1975
- C21 - METALLURGY OF IRON
Information Patent Grant
3709679
- Patent number 3,709,679
- Issue date Jan 9, 1973
- C21 - METALLURGY OF IRON
Information Patent Grant
3684486
- Patent number 3,684,486
- Issue date Aug 15, 1972
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
INDUCTION HEATING OF DRI
- Publication number 20240392399
- Publication date Nov 28, 2024
- Christopher HARRIS
- C21 - METALLURGY OF IRON
Information Patent Application
BIOMASS DIRECT REDUCED IRON
- Publication number 20230407423
- Publication date Dec 21, 2023
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Michael Buckley
- C21 - METALLURGY OF IRON
Information Patent Application
Process for the Production of Carburized Sponge Iron
- Publication number 20230160028
- Publication date May 25, 2023
- HYBRIT Development AB
- Jenny Anna Gunilla Hyllander
- C21 - METALLURGY OF IRON
Information Patent Application
DEVICE FOR MANUFACTURING MOLTEN IRON
- Publication number 20220002826
- Publication date Jan 6, 2022
- POSCO
- Chang Kuk KO
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHODS AND SYSTEMS FOR INCREASING THE CARBON CONTENT OF SPONGE IRO...
- Publication number 20170058373
- Publication date Mar 2, 2017
- MIDREX TECHNOLOGIES, INC.
- Mirmohammadyousef MOTAMEDHASHEMI
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR FLUIDIZED BED REDUCTION OF POWDERED IRON ORE
- Publication number 20160348197
- Publication date Dec 1, 2016
- Institute of Process Engineering, Chinese Academy of Science
- Qingshan Zhu
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR FLUIDIZED DIRECT REDUCTION OF IRON ORE CONCEN...
- Publication number 20160348198
- Publication date Dec 1, 2016
- INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES
- Qingshan Zhu
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR MANUFACTURING AGGLOMERATE AND REDUCED IRON
- Publication number 20160168654
- Publication date Jun 16, 2016
- KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.
- Osamu TSUCHIYA
- C21 - METALLURGY OF IRON
Information Patent Application
USE OF TOP GAS IN DIRECT REDUCTION PROCESSES
- Publication number 20160160304
- Publication date Jun 9, 2016
- Saudi Basic Industries Corporation
- Ahmed H. AI-Nazr
- C21 - METALLURGY OF IRON
Information Patent Application
METHODS AND SYSTEMS FOR PRODUCING DIRECT REDUCED IRON UTILIZING A P...
- Publication number 20160017447
- Publication date Jan 21, 2016
- MIDREX TECHNOLOGIES, INC.,
- Robert Cheeley
- C21 - METALLURGY OF IRON
Information Patent Application
Method of Manufacturing Direct Reduction Iron and Reduction Firing...
- Publication number 20140150606
- Publication date Jun 5, 2014
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CO...
- Publication number 20120263619
- Publication date Oct 18, 2012
- GENERAL ELECTRIC COMPANY
- Andrew Philip WOODFIELD
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF MANUFACTURING DIRECT REDUCTION IRON AND REDUCTION FIRING...
- Publication number 20120055286
- Publication date Mar 8, 2012
- Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT REDUCTION APPARATUS AND PROCESS
- Publication number 20100269636
- Publication date Oct 28, 2010
- OUTOTEC OYJ
- Andreas Orth
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD AND APPARATUS FOR REDUCING METALLIFEROUS MATERIAL TO A REDUC...
- Publication number 20090308204
- Publication date Dec 17, 2009
- Corus Technology BV
- Christiaan Johannes Kooij
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESSING OF METAL CHLORIDE SOLUTIONS AND METHOD AND APPARATUS FOR...
- Publication number 20090095132
- Publication date Apr 16, 2009
- John David Winter
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CO...
- Publication number 20080292488
- Publication date Nov 27, 2008
- GENERAL ELECTRIC COMPANY
- Andrew Philip WOODFIELD
- C21 - METALLURGY OF IRON
Information Patent Application
Direct Reduction Apparatus and Process
- Publication number 20080210055
- Publication date Sep 4, 2008
- Outokumpu Technology Oyj
- Andreas Orth
- C21 - METALLURGY OF IRON
Information Patent Application
Method And Apparatus For Reducing Metal-Oxygen Compounds
- Publication number 20070209479
- Publication date Sep 13, 2007
- Corus Technology BV
- Christiaan Johannes Kooij
- C21 - METALLURGY OF IRON
Information Patent Application
Method for fabricating a martensitic steel without any melting
- Publication number 20040211293
- Publication date Oct 28, 2004
- Clifford Earl Shamblen
- C21 - METALLURGY OF IRON
Information Patent Application
Method for preparing a metallic article having an other additive co...
- Publication number 20040208773
- Publication date Oct 21, 2004
- General Electric Comapny
- Andrew Philip Woodfield
- C21 - METALLURGY OF IRON

Multi-step reduction without melting

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Device for manufacturing molten iron

Multi-stage suspension magnetizing roasting-magnetic separation sys...

Molten iron manufacturing apparatus and molten iron manufacturing m...

Methods and systems for increasing the carbon content of sponge iro...

Use of top gas in direct reduction processes

System and method for fluidized bed reduction of powdered iron ore

Method for preparing a metallic article having an other additive co...

System and method for fluidized direct reduction of iron ore concen...

Method of manufacturing direct reduction iron and reduction firing...

Method of manufacturing direct reduction iron and reduction firing...

Method for preparing a metallic article having an other additive co...

Direct reduction apparatus and process

Direct reduction apparatus and process

Method and apparatus for reducing metal-oxygen compounds

Method for fabricating a martensitic steel without any melting

Method for preparing a metallic article having an other additive co...

Process for producing sponge iron by direct reduction of iron-oxide...

Plant and process for fluidized bed reduction of ore

Plant and process for fluidized bed reduction of ore

Process of producing sponge iron by a direct reduction of iron oxid...

Integrated process for thermal cracking of heavy oil and reduction...

Process for forming steel product from iron while avoiding the liqu...

Process for the reduction of iron oxide

Direct reduction process for producing reduced iron

Processes and apparatus for reducing and subsequently pelletizing m...

Method of preparing iron powder

Desulfurization of iron oxide pellets

3890142

3709679

3684486

Patents Applicationslast 30 patents

INDUCTION HEATING OF DRI

BIOMASS DIRECT REDUCED IRON

Process for the Production of Carburized Sponge Iron

DEVICE FOR MANUFACTURING MOLTEN IRON

METHODS AND SYSTEMS FOR INCREASING THE CARBON CONTENT OF SPONGE IRO...

SYSTEM AND METHOD FOR FLUIDIZED BED REDUCTION OF POWDERED IRON ORE

SYSTEM AND METHOD FOR FLUIDIZED DIRECT REDUCTION OF IRON ORE CONCEN...

METHOD FOR MANUFACTURING AGGLOMERATE AND REDUCED IRON

USE OF TOP GAS IN DIRECT REDUCTION PROCESSES

METHODS AND SYSTEMS FOR PRODUCING DIRECT REDUCED IRON UTILIZING A P...

Method of Manufacturing Direct Reduction Iron and Reduction Firing...

METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CO...

METHOD OF MANUFACTURING DIRECT REDUCTION IRON AND REDUCTION FIRING...

DIRECT REDUCTION APPARATUS AND PROCESS

METHOD AND APPARATUS FOR REDUCING METALLIFEROUS MATERIAL TO A REDUC...

PROCESSING OF METAL CHLORIDE SOLUTIONS AND METHOD AND APPARATUS FOR...

METHOD FOR PREPARING A METALLIC ARTICLE HAVING AN OTHER ADDITIVE CO...

Direct Reduction Apparatus and Process

Method And Apparatus For Reducing Metal-Oxygen Compounds

Method for fabricating a martensitic steel without any melting

Method for preparing a metallic article having an other additive co...