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Making spongy iron or liquid steel, by direct processes
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Industry
CPC
C21B13/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21B
MANUFACTURE OF IRON OR STEEL
Current Industry
C21B13/00
Making spongy iron or liquid steel, by direct processes
Sub Industries
C21B13/0006
obtaining iron or steel in a molten state
C21B13/0013
introduction of iron oxide into a bath of molten iron containing a carbon reductant
C21B13/002
Reduction of iron ores by passing through a heated column of carbon
C21B13/0026
introduction of iron oxide in the flame of a burner or a hot gas stream
C21B13/0033
In fluidised bed furnaces or apparatus containing a dispersion of the material
C21B13/004
in a continuous way by reduction from ores
C21B13/0046
making metallised agglomerates or iron oxide
C21B13/0053
On a massing grate
C21B13/006
Starting from ores containing non ferrous metallic oxides
C21B13/0066
Preliminary conditioning of the solid carbonaceous reductant
C21B13/0073
Selection or treatment of the reducing gases
C21B13/008
Use of special additives or fluxing agents
C21B13/0086
Conditioning, transformation of reduced iron ores
C21B13/0093
Protecting against oxidation
C21B13/02
in shaft furnaces
C21B13/023
wherein iron or steel is obtained in a molten state
C21B13/026
heated electrically
C21B13/04
in retorts
C21B13/06
in multi-storied furnaces
C21B13/08
in rotary furnaces
C21B13/085
wherein iron or steel is obtained in a molten state
C21B13/10
in hearth-type furnaces
C21B13/105
Rotary hearth-type furnaces
C21B13/12
in electric furnaces
C21B13/125
By using plasma
C21B13/14
Multi-stage processes processes carried out in different vessels or furnaces
C21B13/143
Injection of partially reduced ore into a molten bath
C21B13/146
Multi-step reduction without melting
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Direct smelting process with full combustion
Patent number
12,018,340
Issue date
Jun 25, 2024
TATA STEEL NEDERLAND TECHNOLOGY BV
Hendrikus Koenraad Albertus Meijer
C21 - METALLURGY OF IRON
Information
Patent Grant
System and method for the production of hot briquetted iron (HBI) c...
Patent number
12,000,011
Issue date
Jun 4, 2024
Midrex Technologies, Inc.
Haruyasu Michishita
C21 - METALLURGY OF IRON
Information
Patent Grant
Spray cooling furnace electrodes with a cooling liquid that contain...
Patent number
11,979,968
Issue date
May 7, 2024
ChemTreat, Inc.
Joseph S. Strasser
C21 - METALLURGY OF IRON
Information
Patent Grant
Systems and apparatus for production of high-carbon biogenic reagents
Patent number
11,965,139
Issue date
Apr 23, 2024
Carbon Technology Holdings, LLC
James A. Mennell
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and system for heating direct reduced iron (DRI) between a D...
Patent number
11,965,221
Issue date
Apr 23, 2024
Midrex Technologies, Inc.
Todd Michael Astoria
C21 - METALLURGY OF IRON
Information
Patent Grant
High-carbon biogenic reagents and uses thereof
Patent number
11,959,038
Issue date
Apr 16, 2024
Carbon Technology Holdings, LLC
Daniel J. Despen
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Production of iron
Patent number
11,959,153
Issue date
Apr 16, 2024
Technological Resources Pty. Limited
Michael Buckley
C21 - METALLURGY OF IRON
Information
Patent Grant
Direct reduction process utilizing hydrogen
Patent number
11,952,638
Issue date
Apr 9, 2024
Midrex Technologies, Inc.
Keith Marshall Bastow-Cox
C21 - METALLURGY OF IRON
Information
Patent Grant
Refractory batch, a method for producing an unshaped refractory cer...
Patent number
11,905,217
Issue date
Feb 20, 2024
Refractory Intellectual Property GmbH & Co. KG
Stefan Heid
C21 - METALLURGY OF IRON
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,898,798
Issue date
Feb 13, 2024
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-carbon biogenic reagents and uses thereof
Patent number
11,891,582
Issue date
Feb 6, 2024
Carbon Technology Holdings, LLC
Daniel J. Despen
C21 - METALLURGY OF IRON
Information
Patent Grant
High-carbon biogenic reagents and uses thereof
Patent number
11,879,107
Issue date
Jan 23, 2024
Carbon Technology Holdings, LLC
Daniel J. Despen
C21 - METALLURGY OF IRON
Information
Patent Grant
Vessel for containing direct reduced iron
Patent number
11,859,907
Issue date
Jan 2, 2024
Danieli & C. Officine Meccaniche SpA
Angelico Della Negra
C21 - METALLURGY OF IRON
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,852,412
Issue date
Dec 26, 2023
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Lance unblocking method and apparatus
Patent number
11,835,296
Issue date
Dec 5, 2023
Tata Steel Limited
Mark Hayton
B08 - CLEANING
Information
Patent Grant
Gasifier for organic solid waste by injection into molten iron and...
Patent number
11,795,407
Issue date
Oct 24, 2023
Qiang Niu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Systems and methods for steel production
Patent number
11,788,158
Issue date
Oct 17, 2023
PATHFINDER HOLDINGS CORP.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Grant
Integration of DR plant and electric DRI melting furnace for produc...
Patent number
11,788,159
Issue date
Oct 17, 2023
Midrex Technologies, Inc.
Todd Michael Astoria
C21 - METALLURGY OF IRON
Information
Patent Grant
HBI slow cooling system and method
Patent number
11,781,194
Issue date
Oct 10, 2023
Midrex Techonologies, Inc.
James Lloyd Lewis
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction using vent gas
Patent number
11,773,459
Issue date
Oct 3, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert Millner
C21 - METALLURGY OF IRON
Information
Patent Grant
Bio-reduction of metal ores integrated with biomass pyrolysis
Patent number
11,753,698
Issue date
Sep 12, 2023
Carbon Technology Holdings, LLC
James A. Mennell
C21 - METALLURGY OF IRON
Information
Patent Grant
Plant for melting and/or heating metal material and method to power it
Patent number
11,742,660
Issue date
Aug 29, 2023
Danieli Automation SpA
Antonello Mordeglia
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and device for direct reduction with dry vent gas de-dusting
Patent number
11,697,855
Issue date
Jul 11, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Thomas Eder
C21 - METALLURGY OF IRON
Information
Patent Grant
Process and system for steel and hydrogen production using recycled...
Patent number
11,692,231
Issue date
Jul 4, 2023
Palo Alto Research Center Incorporated
Divyaraj Desai
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction in a fluidized bed
Patent number
11,685,961
Issue date
Jun 27, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Roland Eisl
C21 - METALLURGY OF IRON
Information
Patent Grant
Process and system for steel and hydrogen production using recycled...
Patent number
11,680,299
Issue date
Jun 20, 2023
Palo Alto Research Center Incorporated
Divyaraj Desai
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for producing high-carbon biogenic reagents
Patent number
11,674,101
Issue date
Jun 13, 2023
Carbon Technology Holdings, LLC
James A. Mennell
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Oxide ore smelting method
Patent number
11,608,543
Issue date
Mar 21, 2023
Sumitomo Metal Mining Co., Ltd.
Takashi Iseki
C21 - METALLURGY OF IRON
Information
Patent Grant
Reduced iron production method and production apparatus
Patent number
11,549,155
Issue date
Jan 10, 2023
Kobe Steel, Ltd.
Tomoki Uemura
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging system, in particular for a shaft smelt reduction furnace
Patent number
11,542,565
Issue date
Jan 3, 2023
Paul Wurth S.A.
Patrick Hutmacher
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
PROCESS FOR PRODUCING GRAPHENE, OTHER CARBON ALLOTROPES AND MATERIALS
Publication number
20240200158
Publication date
Jun 20, 2024
Ian Bishop
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD OF OPERATING AN ELECTRIC ARC FURNACE AND STEEL MILL
Publication number
20240191314
Publication date
Jun 13, 2024
PAUL WURTH S.A.
Jan KRULL
C21 - METALLURGY OF IRON
Information
Patent Application
Pyrometallurgical Method for Recycling Shredded Material of Waste f...
Publication number
20240191316
Publication date
Jun 13, 2024
ECO'RING
Jean-Luc Roth
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS AND SYSTEM FOR THE PRODUCTION OF IRON NUGGETS
Publication number
20240182993
Publication date
Jun 6, 2024
Carbontec Energy Corporation
John Simmons
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-EFFICIENCY PHOTONIC FURNACES FOR METAL PRODUCTION
Publication number
20240183614
Publication date
Jun 6, 2024
Limelight Steel Inc.
Olivia Faye DIPPO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
REDUCED IRON PRODUCTION METHOD AND REDUCED IRON PRODUCTION DEVICE
Publication number
20240175101
Publication date
May 30, 2024
JFE STEEL CORPORATION
Koki TERUI
C21 - METALLURGY OF IRON
Information
Patent Application
COFFEE AS A CARBON SOURCE IN THE PREPARATION OF IRON AND FERRO-ALLOYS
Publication number
20240175100
Publication date
May 30, 2024
NewSouth Innovations Pty Limited
Veena Sahajwalla
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Application
Reactors and Methods to Reduce Carbon Footprint of Electric Arc Fur...
Publication number
20240167172
Publication date
May 23, 2024
Dioxycle
Sarah Lamaison
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF
Publication number
20240158710
Publication date
May 16, 2024
Carbon Technology Holdings, LLC
Daniel J. Despen
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SYSTEMS AND METHODS FOR PRODUCING SYNGAS FROM BIO-OIL
Publication number
20240150170
Publication date
May 9, 2024
Charm Industrial, Inc.
Peter Reinhardt
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND SYSTEM FOR PRODUCING DIRECT REDUCED METAL
Publication number
20240150859
Publication date
May 9, 2024
GREENIRON H2 AB
Hans MURRAY
C21 - METALLURGY OF IRON
Information
Patent Application
Manufacturing method of a steel product
Publication number
20240132981
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
A method of manufacturing of a steel product in several steelmaking...
Publication number
20240132984
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF
Publication number
20240132795
Publication date
Apr 25, 2024
Carbon Technology Holdings, LLC
Daniel J. Despen
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing steel
Publication number
20240132983
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
METAL OXIDE MATERIAL REDUCTION MEANS
Publication number
20240124948
Publication date
Apr 18, 2024
LUOSSAVAARA-KIIRUNAVAARA AB
Ola Eriksson
C21 - METALLURGY OF IRON
Information
Patent Application
DIRECT REDUCTION OF IRON BY HYDROGEN PLASMA IN A ROTARY KILN REACTOR
Publication number
20240110254
Publication date
Apr 4, 2024
UChicago Argonne, LLC
Zuotao Zeng
C21 - METALLURGY OF IRON
Information
Patent Application
ARRANGEMENT AND PROCESS FOR CHARGING IRON ORE TO, AND/OR DISCHARGIN...
Publication number
20240093330
Publication date
Mar 21, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
C21 - METALLURGY OF IRON
Information
Patent Application
BLEED-OFF GAS RECOVERY IN A DIRECT REDUCTION PROCESS
Publication number
20240084410
Publication date
Mar 14, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HIGH-EFFICIENCY PHOTONIC FURNACES FOR METAL PRODUCTION
Publication number
20240077256
Publication date
Mar 7, 2024
Limelight Steel Inc.
Olivia Faye DIPPO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SMART HYDROGEN PRODUCTION FOR DRI MAKING
Publication number
20240052441
Publication date
Feb 15, 2024
PAUL WURTH S.A.
Cristiano CASTAGNOLA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PRODUCTION FROM IRON MELT
Publication number
20240052442
Publication date
Feb 15, 2024
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert MILLNER
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF STEEL SMELTING DIRECTLY FROM IRON ORE
Publication number
20240052440
Publication date
Feb 15, 2024
SIEC BADAWCZA LUKASIEWICZ INSTYTUT METALURGII ZELAZA IM. STANISLAWA STASZICA...
Jan MROZ
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS FOR THE PRODUCTION OF CARBURIZED SPONGE IRON
Publication number
20240035103
Publication date
Feb 1, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
C21 - METALLURGY OF IRON
Information
Patent Application
HYDROGEN REDUCTION OF IRON ORE CONCENTRATE IN LOOSE LAYERS AND COMP...
Publication number
20240026475
Publication date
Jan 25, 2024
University of Utah Research Foundation
Hong Yong R. Sohn
C21 - METALLURGY OF IRON
Information
Patent Application
PACKING MEMBER
Publication number
20240017238
Publication date
Jan 18, 2024
JEMMTEC LIMITED
Mark STUCKEY
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SYSTEMS AND METHODS FOR STEEL PRODUCTION
Publication number
20230416854
Publication date
Dec 28, 2023
Pathfinder Holdings Corp.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Application
WIRE ROD FOR 5000 MPA-GRADE DIAMOND WIRE AND PRODUCTION METHOD THER...
Publication number
20230416865
Publication date
Dec 28, 2023
INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO. LTD...
Han MA
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
DIRECT BATH SMELTING PROCESS WITH MANAGEMENT OF PERIPHERAL COLD ZON...
Publication number
20230407422
Publication date
Dec 21, 2023
Nucor Corporation
Rodney James Dry
C21 - METALLURGY OF IRON