Removing impurities other than carbon, phosphorus or sulfur

Industry

CPC
C21C1/04

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21CPROCESSING OF PIG-IRON C21C1/00Refining of pig-iron Cast iron

Current Industry

C21C1/04Removing impurities other than carbon, phosphorus or sulfur

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method of dechromizing molten iron and method of manufacturing phos...
- Patent number 11,254,992
- Issue date Feb 22, 2022
- Nippon Steel Corporation
- Motohiro Sakamoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for ironmaking by smelting reduction in stir-generated vortex
- Patent number 11,091,816
- Issue date Aug 17, 2021
- Northeastern University
- Ting an Zhang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for preliminary treatment of molten iron
- Patent number 9,920,390
- Issue date Mar 20, 2018
- JFE Steel Corporation
- Yozo Iwaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for predicting degree of contamination of molten steel durin...
- Patent number 9,460,248
- Issue date Oct 4, 2016
- Hyundai Steel Company
- Jae Hwan Ahn
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of refining molten iron
- Patent number 9,315,875
- Issue date Apr 19, 2016
- JFE Steel Corporation
- Shizuhiko Ikeno
- C21 - METALLURGY OF IRON
Information Patent Grant
Operation method for mechanically stirring chrome-containing molten...
- Patent number 8,753,423
- Issue date Jun 17, 2014
- Nisshin Steel Co., Ltd.
- Masayuki Sugiura
- C21 - METALLURGY OF IRON
Information Patent Grant
Anti-oxidative agent for molten metal, method of preparing and meth...
- Patent number 8,075,663
- Issue date Dec 13, 2011
- Shenzhen Kunqixinhua Technology Co., Ltd.
- Yongnong Yan
- C21 - METALLURGY OF IRON
Information Patent Grant
Production of stainless steel of AISI 4xx grade ferritic steel in a...
- Patent number 7,819,940
- Issue date Oct 26, 2010
- SMS Siemag Aktiengesellschaft
- Johann Reichel
- C21 - METALLURGY OF IRON
Information Patent Grant
Cast iron member manufacturing method
- Patent number 7,354,549
- Issue date Apr 8, 2008
- Honda Giken Kogyo Kabushiki Kaisha
- Takao Watanabe
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of melt-removing impurity elements from iron
- Patent number 6,368,380
- Issue date Apr 9, 2002
- Nippon Steel Corporation
- Yoshiyuki Ueshima
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for desiliconizing pig iron before refining it to steel
- Patent number 6,261,339
- Issue date Jul 17, 2001
- “Holderbank”Financiere Glarus AG
- Alfred Edlinger
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and an apparatus for removal of silicon, manganese, carbon...
- Patent number 6,063,157
- Issue date May 16, 2000
- Shilowbhadra Banerjee
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for extracting zinc present in liquid cast iron, means for...
- Patent number 5,387,275
- Issue date Feb 7, 1995
- Ecole Centrale de Lille
- Jean C. Tissier
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for dealuminizing molten cast iron
- Patent number 5,240,673
- Issue date Aug 31, 1993
- General Motors Corporation
- Basant L. Tiwari
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for preliminary treatment of molten hot metal
- Patent number 5,154,756
- Issue date Oct 13, 1992
- Nisshin Steel Co., Ltd.
- Yoshio Nakajima
- C21 - METALLURGY OF IRON
Information Patent Grant
Making of steel
- Patent number 4,814,006
- Issue date Mar 21, 1989
- Mannesmann AG
- Johann Gorjup
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for reduction of impurities content of hot metal
- Patent number 4,741,771
- Issue date May 3, 1988
- Centro Sperimentale Metallurgico S.p.A.
- Maurizio Palchetti
- C21 - METALLURGY OF IRON
Information Patent Grant
Installation for the production of steel by pre-smelting of pig iron
- Patent number 4,627,601
- Issue date Dec 9, 1986
- IRSID
- Aristide Berthet
- C21 - METALLURGY OF IRON
Information Patent Grant
Steelmaking process with separate refining steps
- Patent number 4,457,778
- Issue date Jul 3, 1984
- Nippon Steel Corporation
- Hiroyuki Nakashima
- C21 - METALLURGY OF IRON
Information Patent Grant
Production of ultra-low phosphorus steel
- Patent number 4,456,477
- Issue date Jun 26, 1984
- Sumitomo Metal Industries, Inc.
- Seiichi Masuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Multi-step steelmaking refining method
- Patent number 4,415,359
- Issue date Nov 15, 1983
- Nippon Steel Corporation
- Mitsuhiko Nishimura
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for addition of silicon to iron
- Patent number 4,414,025
- Issue date Nov 8, 1983
- China Steel Corporation
- Chi-Ming Yang
- C21 - METALLURGY OF IRON
Information Patent Grant
Steelmaking process with separate refining steps
- Patent number 4,411,696
- Issue date Oct 25, 1983
- Nippon Steel Corporation
- Hiroyuki Nakashima
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of preliminary desiliconization of molten iron by injecting...
- Patent number 4,394,165
- Issue date Jul 19, 1983
- Nippon Steel Corporation
- Shingo Satoh
- C21 - METALLURGY OF IRON
Information Patent Grant
Steelmaking process with separate refining steps
- Patent number 4,388,112
- Issue date Jun 14, 1983
- Nippon Steel Corporation
- Hiroyuki Nakashima
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for dephosphorization and denitrification of chromium-conta...
- Patent number 4,314,847
- Issue date Feb 9, 1982
- Nisshin Steel Company, Ltd.
- Shigeaki Maruhashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel making process
- Patent number 4,295,882
- Issue date Oct 20, 1981
- Nippon Steel Corporation
- Ryoji Arima
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing improved metal castings by pneumatically refin...
- Patent number 4,208,206
- Issue date Jun 17, 1980
- Union Carbide Corporation
- Frank S. Death
- C21 - METALLURGY OF IRON
Information Patent Grant
3424574
- Patent number 3,424,574
- Issue date Jan 28, 1969
- C21 - METALLURGY OF IRON
Information Patent Grant
3271128
- Patent number 3,271,128
- Issue date Sep 6, 1966
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL
- Publication number 20240167112
- Publication date May 23, 2024
- JFE STEEL CORPORATION
- Shota AMANO
- C21 - METALLURGY OF IRON
Information Patent Application
REFINING METHOD OF MOLTEN IRON AND MANUFACTURING METHOD OF MOLTEN S...
- Publication number 20240068060
- Publication date Feb 29, 2024
- JFE STEEL CORPORATION
- Hidemitsu NEGISHI
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESSES FOR PURIFYING IRON-BEARING MATERIALS
- Publication number 20230399710
- Publication date Dec 14, 2023
- Michael Andrew GIBSON
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF DECHROMIZING MOLTEN IRON AND METHOD OF MANUFACTURING PHOS...
- Publication number 20200239973
- Publication date Jul 30, 2020
- NIPPON STEEL CORPORATION
- Motohiro SAKAMOTO
- C21 - METALLURGY OF IRON
Information Patent Application
METHODS FOR MANGANESE REMOVAL OF CAST IRON
- Publication number 20170342515
- Publication date Nov 30, 2017
- KINOSHITA MANUFACTORY CO.,LTD.
- Kiyoshi KINOSHITA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING MOLD STEEL, MOLD STEEL, METHOD OF PRODUCING PR...
- Publication number 20150044087
- Publication date Feb 12, 2015
- Hitachi Metals, Ltd.
- Yousuke Ayabe
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF REFINING MOLTEN IRON
- Publication number 20140069235
- Publication date Mar 13, 2014
- JFE STEEL CORPORATION
- Shizuhiko Ikeno
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR REMOVING IMPURITIES IN MOLTEN CAST IRON, AND CAST IRON R...
- Publication number 20130195712
- Publication date Aug 1, 2013
- KIMURA CHUZOSHO CO., LTD.
- Toshitake Kanno
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PREDICTING DEGREE OF CONTAMINATION OF MOLTEN STEEL DURIN...
- Publication number 20130197885
- Publication date Aug 1, 2013
- HYUNDAI STEEL COMPANY
- Jae Hwan Ahn
- C21 - METALLURGY OF IRON
Information Patent Application
OPERATION METHOD FOR MECHANICALLY STIRRING CHROME-CONTAINING MOLTEN...
- Publication number 20120260773
- Publication date Oct 18, 2012
- NISSHIN STEEL CO., LTD.
- Masayuki Sugiura
- C21 - METALLURGY OF IRON
Information Patent Application
ANTI-OXIDATIVE AGENT FOR MOLTEN METAL, METHOD OF PREPARING AND METH...
- Publication number 20100180726
- Publication date Jul 22, 2010
- Yongnong YAN
- C21 - METALLURGY OF IRON
Information Patent Application
Production of Stainless Steel of AISI 4XX Grade Ferritic Steel in a...
- Publication number 20090031860
- Publication date Feb 5, 2009
- Johann Reichel
- C21 - METALLURGY OF IRON
Information Patent Application
Cast iron member manufacturing method
- Publication number 20040244881
- Publication date Dec 9, 2004
- Takao Watanabe
- C21 - METALLURGY OF IRON

Removing impurities other than carbon, phosphorus or sulfur

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method of dechromizing molten iron and method of manufacturing phos...

Method for ironmaking by smelting reduction in stir-generated vortex

Method for preliminary treatment of molten iron

Method for predicting degree of contamination of molten steel durin...

Method of refining molten iron

Operation method for mechanically stirring chrome-containing molten...

Anti-oxidative agent for molten metal, method of preparing and meth...

Production of stainless steel of AISI 4xx grade ferritic steel in a...

Cast iron member manufacturing method

Method of melt-removing impurity elements from iron

Method for desiliconizing pig iron before refining it to steel

Process and an apparatus for removal of silicon, manganese, carbon...

Process for extracting zinc present in liquid cast iron, means for...

Process for dealuminizing molten cast iron

Method and apparatus for preliminary treatment of molten hot metal

Making of steel

Process for reduction of impurities content of hot metal

Installation for the production of steel by pre-smelting of pig iron

Steelmaking process with separate refining steps

Production of ultra-low phosphorus steel

Multi-step steelmaking refining method

Process for addition of silicon to iron

Steelmaking process with separate refining steps

Method of preliminary desiliconization of molten iron by injecting...

Steelmaking process with separate refining steps

Process for dephosphorization and denitrification of chromium-conta...

Steel making process

Method for producing improved metal castings by pneumatically refin...

3424574

3271128

Patents Applicationslast 30 patents

METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL

REFINING METHOD OF MOLTEN IRON AND MANUFACTURING METHOD OF MOLTEN S...

PROCESSES FOR PURIFYING IRON-BEARING MATERIALS

METHOD OF DECHROMIZING MOLTEN IRON AND METHOD OF MANUFACTURING PHOS...

METHODS FOR MANGANESE REMOVAL OF CAST IRON

METHOD FOR PRODUCING MOLD STEEL, MOLD STEEL, METHOD OF PRODUCING PR...

METHOD OF REFINING MOLTEN IRON

METHOD FOR REMOVING IMPURITIES IN MOLTEN CAST IRON, AND CAST IRON R...

METHOD FOR PREDICTING DEGREE OF CONTAMINATION OF MOLTEN STEEL DURIN...

OPERATION METHOD FOR MECHANICALLY STIRRING CHROME-CONTAINING MOLTEN...

ANTI-OXIDATIVE AGENT FOR MOLTEN METAL, METHOD OF PREPARING AND METH...

Production of Stainless Steel of AISI 4XX Grade Ferritic Steel in a...

Cast iron member manufacturing method