Duplex process; Two stage processes

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CPC
C21C2007/0093

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21CPROCESSING OF PIG-IRON

Current Industry

C21C2007/0093Duplex process; Two stage processes

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Patents Grantslast 30 patents

Information Patent Grant
Molten steel desulfurization method, molten steel secondary refinin...
- Patent number 11,035,014
- Issue date Jun 15, 2021
- JFE Steel Corporation
- Satoshi Kinoshiro
- G01 - MEASURING TESTING
Information Patent Grant
Production method for smelting clean steel from full-scrap steel us...
- Patent number 10,767,239
- Issue date Sep 8, 2020
- University of Science and Technology Beijing
- Rong Zhu
- C21 - METALLURGY OF IRON
Information Patent Grant
Molten steel desulfurization method, molten steel secondary refinin...
- Patent number 10,287,644
- Issue date May 14, 2019
- JFE Steel Corporation
- Satoshi Kinoshiro
- C21 - METALLURGY OF IRON
Information Patent Grant
Molten steel producing method
- Patent number 6,740,138
- Issue date May 25, 2004
- Daido Tokushukou Kabushikikaisha
- Hajime Amano
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing alloyed steels
- Patent number 6,077,324
- Issue date Jun 20, 2000
- KCT Technologie GmbH
- Ernst Fritz
- C21 - METALLURGY OF IRON
Information Patent Grant
Melting furnace of metals and melting method thereof
- Patent number 5,888,458
- Issue date Mar 30, 1999
- Nippon Sanso Corporation
- Toshio Suwa
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and apparatus for the manufacture of steel
- Patent number 5,885,325
- Issue date Mar 23, 1999
- USX Corporation
- Gordon H. Geiger
- C21 - METALLURGY OF IRON
Information Patent Grant
Meltdown apparatus
- Patent number 5,738,823
- Issue date Apr 14, 1998
- Asea Brown Boveri AG
- Goran Grimfjard
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and apparatus for the manufacture of steel from iron carbide
- Patent number 5,733,358
- Issue date Mar 31, 1998
- USX Corporation and Praxair Technology, Inc.
- Gordon H. Geiger
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and installation for producing molten steel from ferrous mat...
- Patent number 5,562,753
- Issue date Oct 8, 1996
- Sollac (Societe anonyme)
- Yann de Lassat de Pressigny
- C21 - METALLURGY OF IRON
Information Patent Grant
Melting furnace having preheating vessel
- Patent number 5,535,235
- Issue date Jul 9, 1996
- NKK Corporation
- Norio Ao
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and device for producing stainless steel
- Patent number 5,514,331
- Issue date May 7, 1996
- Outokumpu Steel Oy
- Matti Honkaniemi
- C21 - METALLURGY OF IRON
Information Patent Grant
Double-hearth arc furnace for preheating scrap material and method...
- Patent number 5,479,434
- Issue date Dec 26, 1995
- Mannesmann Aktiengesellschaft
- Raymond J. Burda
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing steel
- Patent number 5,417,740
- Issue date May 23, 1995
- Zaptech Corporation
- Grigori Galperin
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing steel
- Patent number 5,378,261
- Issue date Jan 3, 1995
- Zaptech Corporation
- Rafik Aizatulov
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and apparatus for making molten steel
- Patent number 5,350,434
- Issue date Sep 27, 1994
- Metallgesellschaft AG
- Bernt Rollinger
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing steel
- Patent number 5,286,277
- Issue date Feb 15, 1994
- Zaptech Corporation
- Rafik Aizatulov
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical furnace installation
- Patent number 5,178,818
- Issue date Jan 12, 1993
- Mitsubishi Materials Corporation
- Hiroaki Ikoma
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing general-purpose steel
- Patent number 5,085,691
- Issue date Feb 4, 1992
- Anatoly Y. Nakonechny
- C21 - METALLURGY OF IRON
Information Patent Grant
Vertical shaft melting furnace and method of melting
- Patent number 4,877,449
- Issue date Oct 31, 1989
- Institute of Gas Technology
- Mark J. Khinkis
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing iron
- Patent number 4,861,368
- Issue date Aug 29, 1989
- Kloeckner CRA Technologie GmbH
- Karl Brotzmann
- C21 - METALLURGY OF IRON
Information Patent Grant
Charging material preheater for preheating charging material for a...
- Patent number 4,852,858
- Issue date Aug 1, 1989
- Kortec AG
- Ralph Weber
- C21 - METALLURGY OF IRON
Information Patent Grant
Reactor for iron making
- Patent number 4,790,516
- Issue date Dec 13, 1988
- Daido Tokushuko Kabushiki Kaisha
- Saburo Sugiura
- C21 - METALLURGY OF IRON
Information Patent Grant
High alloy steel making
- Patent number 4,772,317
- Issue date Sep 20, 1988
- Mannesmann AG
- Heinrich-Wilhelm Rommerswinkel
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and apparatus for producing steel from scrap
- Patent number 4,753,677
- Issue date Jun 28, 1988
- Dr. Kuttner, GmbH & Co. KG
- Hans-Gunther Rachner
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for reactor iron making
- Patent number 4,691,899
- Issue date Sep 8, 1987
- Daido Tokushuko Kabushiki Kaisha
- Kiyohide Hayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Installation and process for continuously charging a reactor with s...
- Patent number 4,606,530
- Issue date Aug 19, 1986
- Victor Litchinko
- C21 - METALLURGY OF IRON
Information Patent Grant
Reactor iron making
- Patent number 4,605,437
- Issue date Aug 12, 1986
- Daido Tokushuko Kabushiki Kaisha
- Saburo Sugiura
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for making fuel from solid metallic iron-bearing materials
- Patent number 4,555,267
- Issue date Nov 26, 1985
- Klockner CRA Technologie GmbH
- Manfred Chitil
- C21 - METALLURGY OF IRON
Information Patent Grant
Process of making steel in converter using a great amount of iron-b...
- Patent number 4,543,125
- Issue date Sep 24, 1985
- Kawasaki Steel Corporation
- Fumio Sudo
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ULTRA-HIGH PHOSPHORUS MOLTEN IRON LOW-COST SMELTING METHOD FOR POLA...
- Publication number 20230220504
- Publication date Jul 13, 2023
- LAIWU STEEL YINSHAN SECTION CO., LTD.
- Heng MA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING ALLOY STEEL
- Publication number 20200377977
- Publication date Dec 3, 2020
- POSCO
- Soo Chang KANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PRODUCTION METHOD FOR SMELTING CLEAN STEEL FROM FULL-SCRAP STEEL US...
- Publication number 20180363077
- Publication date Dec 20, 2018
- University of Science and Technology Beijing
- Rong ZHU
- C21 - METALLURGY OF IRON
Information Patent Application
MOLTEN STEEL DESULFURIZATION METHOD, MOLTEN STEEL SECONDARY REFININ...
- Publication number 20170247773
- Publication date Aug 31, 2017
- JFE STEEL CORPORATION
- Satoshi KINOSHIRO
- C21 - METALLURGY OF IRON
Information Patent Application
Molten steel producing method
- Publication number 20030024349
- Publication date Feb 6, 2003
- Daido Tokushukou Kabushikikaisha
- Hajime Amano
- C21 - METALLURGY OF IRON

Duplex process; Two stage processes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Molten steel desulfurization method, molten steel secondary refinin...

Production method for smelting clean steel from full-scrap steel us...

Molten steel desulfurization method, molten steel secondary refinin...

Molten steel producing method

Method for producing alloyed steels

Melting furnace of metals and melting method thereof

Process and apparatus for the manufacture of steel

Meltdown apparatus

Process and apparatus for the manufacture of steel from iron carbide

Method and installation for producing molten steel from ferrous mat...

Melting furnace having preheating vessel

Method and device for producing stainless steel

Double-hearth arc furnace for preheating scrap material and method...

Method for producing steel

Method for producing steel

Process and apparatus for making molten steel

Method for producing steel

Metallurgical furnace installation

Method of producing general-purpose steel

Vertical shaft melting furnace and method of melting

Method for producing iron

Charging material preheater for preheating charging material for a...

Reactor for iron making

High alloy steel making

Process and apparatus for producing steel from scrap

Apparatus for reactor iron making

Installation and process for continuously charging a reactor with s...

Reactor iron making

Process for making fuel from solid metallic iron-bearing materials

Process of making steel in converter using a great amount of iron-b...

Patents Applicationslast 30 patents

ULTRA-HIGH PHOSPHORUS MOLTEN IRON LOW-COST SMELTING METHOD FOR POLA...

METHOD FOR PRODUCING ALLOY STEEL

PRODUCTION METHOD FOR SMELTING CLEAN STEEL FROM FULL-SCRAP STEEL US...

MOLTEN STEEL DESULFURIZATION METHOD, MOLTEN STEEL SECONDARY REFININ...

Molten steel producing method