Rotary hearth-type furnaces

Industry

CPC
C21B13/105

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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

C21B13/105Rotary hearth-type furnaces

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Rotary hearth furnace, and method for producing reduced iron using...
- Patent number 11,428,468
- Issue date Aug 30, 2022
- Kobe Steel, Ltd.
- Tomoki Uemura
- C21 - METALLURGY OF IRON
Information Patent Grant
Reduced iron production method
- Patent number 11,293,068
- Issue date Apr 5, 2022
- Kobe Steel, Ltd.
- Taiji Hatakeyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Production method of granular metallic iron
- Patent number 10,407,744
- Issue date Sep 10, 2019
- Kobe Steel, Ltd.
- Shorin O
- C21 - METALLURGY OF IRON
Information Patent Grant
Rotary hearth furnace
- Patent number 10,294,535
- Issue date May 21, 2019
- Kobe Steel, Ltd.
- Tadashi Yaso
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for manufacturing reduced iron agglomerates
- Patent number 10,144,981
- Issue date Dec 4, 2018
- Kobe Steel, Ltd.
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing reduced iron
- Patent number 10,017,836
- Issue date Jul 10, 2018
- Kobe Steel, Ltd.
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Grant
Burning apparatus and method for manufacturing reduced iron using t...
- Patent number 9,976,806
- Issue date May 22, 2018
- Posco
- Sang Han Son
- C21 - METALLURGY OF IRON
Information Patent Grant
Methods and systems for producing ferro-chrome in a duplex furnace
- Patent number 9,695,492
- Issue date Jul 4, 2017
- Midrex Technologies, Inc.
- Vincent Chevrier
- C21 - METALLURGY OF IRON
Information Patent Grant
Producing of pig iron from iron-containing materials
- Patent number 9,404,165
- Issue date Aug 2, 2016
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Grant
Rotary hearth furnace exhaust gas duct apparatus and method for ope...
- Patent number 9,310,133
- Issue date Apr 12, 2016
- Kobe Steel, Ltd.
- Noriaki Mizutani
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing granular metallic iron
- Patent number 9,180,521
- Issue date Nov 10, 2015
- Kobe Steel, Ltd.
- Ryota Misawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus and methods for producing direct reduced iron
- Patent number 9,115,413
- Issue date Aug 25, 2015
- Giulio Grossi
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing reduced iron pellets, and process for produci...
- Patent number 9,034,074
- Issue date May 19, 2015
- Nippon Steel & Sumitomo Metal Corporation
- Tetsuharu Ibaraki
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing reduced metal and slag containing oxidized non...
- Patent number 8,790,420
- Issue date Jul 29, 2014
- Kobe Steel, Ltd.
- Takao Harada
- C21 - METALLURGY OF IRON
Information Patent Grant
System and method for producing metallic iron
- Patent number 8,790,442
- Issue date Jul 29, 2014
- Nu-Iron Technology LLC
- David J. Englund
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for coproduction of pig iron and high quality...
- Patent number 8,764,875
- Issue date Jul 1, 2014
- Xiaodi Huang
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for manufacturing granular metallic iron
- Patent number 8,617,459
- Issue date Dec 31, 2013
- Kobe Steel, Ltd.
- Koji Tokuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Refractory lining for titanium ore beneficiation
- Patent number 8,569,191
- Issue date Oct 29, 2013
- E I du Pont de Nemours and Company
- John James Barnes
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of coal gasification and direct ironmaking and system therefor
- Patent number 8,551,213
- Issue date Oct 8, 2013
- Kobe Steel, Ltd.
- Masataka Tateishi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for reducing iron oxide and producing syngas
- Patent number 8,540,794
- Issue date Sep 24, 2013
- Jiann-Yang Hwang
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and system for producing metallic iron nuggets
- Patent number 8,470,068
- Issue date Jun 25, 2013
- Nu-Iron Technology, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing briquette, method for producing reduced metal,...
- Patent number 8,419,824
- Issue date Apr 16, 2013
- Kobe Steel, Ltd.
- Masahiko Tetsumoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for manufacturing granular metallic iron
- Patent number 8,377,169
- Issue date Feb 19, 2013
- Kobe Steel, Ltd.
- Koji Tokuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Ore reduction process using carbon based materials having a low sul...
- Patent number 8,372,179
- Issue date Feb 12, 2013
- E I du Pont de Nemours and Company
- John James Barnes
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and system for producing metallic iron nuggets
- Patent number 8,333,823
- Issue date Dec 18, 2012
- Nu-Iron Technology, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of reduction treatment of metal oxides or steelmaking waste...
- Patent number 8,308,844
- Issue date Nov 13, 2012
- Nippon Steel Corporation
- Hiroshi Ichikawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing molten iron and apparatus for producing molte...
- Patent number 8,277,536
- Issue date Oct 2, 2012
- Kobe Steel, Ltd.
- Takao Harada
- C21 - METALLURGY OF IRON
Information Patent Grant
Producing method of direct reduced iron
- Patent number 8,182,575
- Issue date May 22, 2012
- Nippon Steel Corporation
- Hiroki Gofuku
- C21 - METALLURGY OF IRON
Information Patent Grant
System and method of producing metallic iron
- Patent number 8,177,880
- Issue date May 15, 2012
- Nu-Iron Technology, LLC
- David Englund
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and system for producing metallic iron nuggets
- Patent number 8,158,054
- Issue date Apr 17, 2012
- Nu-Iron Technology, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
DIRECT BATH SMELTING PROCESS WITH FAST QUENCH OF MOLTEN MATERIAL IN...
- Publication number 20240279757
- Publication date Aug 22, 2024
- Nucor Corporation
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Application
REDUCED IRON PRODUCTION METHOD
- Publication number 20200291494
- Publication date Sep 17, 2020
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Taiji HATAKEYAMA
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY HEARTH FURNACE, AND METHOD FOR PRODUCING REDUCED IRON USING...
- Publication number 20190301800
- Publication date Oct 3, 2019
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Tomoki UEMURA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON
- Publication number 20170335416
- Publication date Nov 23, 2017
- Tetsugen Corporation
- Seita Uekawa
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY HEARTH FURNACE
- Publication number 20170198365
- Publication date Jul 13, 2017
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Tadashi YASO
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR MANUFACTURING IRON NUGGETS
- Publication number 20160237514
- Publication date Aug 18, 2016
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shuzo ITO
- C21 - METALLURGY OF IRON
Information Patent Application
PRODUCTION OF PIG IRON
- Publication number 20150275323
- Publication date Oct 1, 2015
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Application
METHODS AND SYSTEMS FOR PRODUCING FERRO-CHROME IN A DUPLEX FURNACE
- Publication number 20140352494
- Publication date Dec 4, 2014
- MIDREX TECHNOLOGIES, INC.
- Vincent CHEVRIER
- C21 - METALLURGY OF IRON
Information Patent Application
PRODUCING OF PIG IRON FROM IRON-CONTAINING MATERIALS
- Publication number 20140331821
- Publication date Nov 13, 2014
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Application
REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION
- Publication number 20130287942
- Publication date Oct 31, 2013
- John James BARNES
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY HEARTH FURNACE EXHAUST GAS DUCT APPARATUS AND METHOD FOR OPE...
- Publication number 20130154167
- Publication date Jun 20, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Noriaki Mizutani
- C21 - METALLURGY OF IRON
Information Patent Application
DEVICE FOR PRODUCING GRANULAR METAL IRON AND PROCESS FOR PRODUCING...
- Publication number 20130118307
- Publication date May 16, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd)
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING GRANULAR METALLIC IRON
- Publication number 20130098204
- Publication date Apr 25, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Ryota Misawa
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESS FOR PRODUCING GRANULAR METAL
- Publication number 20130074654
- Publication date Mar 28, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shuzo Ito
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING METALLIC IRON
- Publication number 20130055853
- Publication date Mar 7, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Takeshi Sugiyama
- C21 - METALLURGY OF IRON
Information Patent Application
CARBON-MATERIAL-CONTAINING IRON OXIDE BRIQUETTE COMPOSITION, METHOD...
- Publication number 20130047787
- Publication date Feb 28, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Motohiro Horiguchi
- C21 - METALLURGY OF IRON
Information Patent Application
APPARATUS AND METHODS FOR PRODUCING DIRECT REDUCED IRON
- Publication number 20120325053
- Publication date Dec 27, 2012
- Giulio Grossi
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING METALLIC IRON NUGGETS
- Publication number 20120285295
- Publication date Nov 15, 2012
- NU-IRON TECHNOLOGY, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING METALLIC IRON
- Publication number 20120279353
- Publication date Nov 8, 2012
- NU-IRON TECHNOLOGY, LLC
- David J. Englund
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF SETTING TEMPERATURE OF CONTINUOUS HEATING FURNACE AND MET...
- Publication number 20120256359
- Publication date Oct 11, 2012
- Koji TAMARU
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD AND APPARATUS FOR MANUFACTURING GRANULAR METALLIC IRON
- Publication number 20120205840
- Publication date Aug 16, 2012
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Koji TOKUDA
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING METALLIC IRON
- Publication number 20120192679
- Publication date Aug 2, 2012
- NU-IRON TECHNOLOGY, LLC
- David J. Englund
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING BRIQUETTES, METHOD FOR PRODUCING REDUCED METAL...
- Publication number 20120186395
- Publication date Jul 26, 2012
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Takao Harada
- C21 - METALLURGY OF IRON
Information Patent Application
APPARATUS AND METHOD FOR PRODUCING REDUCED IRON FROM ALKALI-CONTAIN...
- Publication number 20120103136
- Publication date May 3, 2012
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Takeshi Sugiyama
- C21 - METALLURGY OF IRON
Information Patent Application
REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION
- Publication number 20120064371
- Publication date Mar 15, 2012
- E.I. du Pont de Nemours and Company
- John James Barnes
- C21 - METALLURGY OF IRON
Information Patent Application
Method and Apparatus For Coproduction of Pig Iron and High Quality...
- Publication number 20120031232
- Publication date Feb 9, 2012
- Xiaodi Huang
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD AND APPARATUS FOR PRODUCING REDUCED METAL
- Publication number 20120007292
- Publication date Jan 12, 2012
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Koji Tokuda
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING METALLIC IRON
- Publication number 20120006449
- Publication date Jan 12, 2012
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Mitsutaka Hino
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING GRANULAR IRON
- Publication number 20110265603
- Publication date Nov 3, 2011
- KABUSHIKI KAISHA KOBE SEIKO SHO
- Takeshi Sugiyama
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESS FOR PRODUCING MOLTEN IRON AND APPARATUS FOR PRODUCING MOLTE...
- Publication number 20110226092
- Publication date Sep 22, 2011
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Takao HARADA
- C21 - METALLURGY OF IRON

Rotary hearth-type furnaces

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Rotary hearth furnace, and method for producing reduced iron using...

Reduced iron production method

Production method of granular metallic iron

Rotary hearth furnace

Process for manufacturing reduced iron agglomerates

Method for producing reduced iron

Burning apparatus and method for manufacturing reduced iron using t...

Methods and systems for producing ferro-chrome in a duplex furnace

Producing of pig iron from iron-containing materials

Rotary hearth furnace exhaust gas duct apparatus and method for ope...

Method for producing granular metallic iron

Apparatus and methods for producing direct reduced iron

Process for producing reduced iron pellets, and process for produci...

Method for producing reduced metal and slag containing oxidized non...

System and method for producing metallic iron

Method and apparatus for coproduction of pig iron and high quality...

Method and apparatus for manufacturing granular metallic iron

Refractory lining for titanium ore beneficiation

Method of coal gasification and direct ironmaking and system therefor

Method for reducing iron oxide and producing syngas

Method and system for producing metallic iron nuggets

Method for producing briquette, method for producing reduced metal,...

Method and apparatus for manufacturing granular metallic iron

Ore reduction process using carbon based materials having a low sul...

Method and system for producing metallic iron nuggets

Method of reduction treatment of metal oxides or steelmaking waste...

Process for producing molten iron and apparatus for producing molte...

Producing method of direct reduced iron

System and method of producing metallic iron

Method and system for producing metallic iron nuggets

Patents Applicationslast 30 patents

DIRECT BATH SMELTING PROCESS WITH FAST QUENCH OF MOLTEN MATERIAL IN...

REDUCED IRON PRODUCTION METHOD

ROTARY HEARTH FURNACE, AND METHOD FOR PRODUCING REDUCED IRON USING...

METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON

ROTARY HEARTH FURNACE

METHOD FOR MANUFACTURING IRON NUGGETS

PRODUCTION OF PIG IRON

METHODS AND SYSTEMS FOR PRODUCING FERRO-CHROME IN A DUPLEX FURNACE

PRODUCING OF PIG IRON FROM IRON-CONTAINING MATERIALS

REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION

ROTARY HEARTH FURNACE EXHAUST GAS DUCT APPARATUS AND METHOD FOR OPE...

DEVICE FOR PRODUCING GRANULAR METAL IRON AND PROCESS FOR PRODUCING...

METHOD FOR PRODUCING GRANULAR METALLIC IRON

PROCESS FOR PRODUCING GRANULAR METAL

METHOD FOR PRODUCING METALLIC IRON

CARBON-MATERIAL-CONTAINING IRON OXIDE BRIQUETTE COMPOSITION, METHOD...

APPARATUS AND METHODS FOR PRODUCING DIRECT REDUCED IRON

METHOD FOR PRODUCING METALLIC IRON NUGGETS

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

METHOD OF SETTING TEMPERATURE OF CONTINUOUS HEATING FURNACE AND MET...

METHOD AND APPARATUS FOR MANUFACTURING GRANULAR METALLIC IRON

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

METHOD FOR PRODUCING BRIQUETTES, METHOD FOR PRODUCING REDUCED METAL...

APPARATUS AND METHOD FOR PRODUCING REDUCED IRON FROM ALKALI-CONTAIN...

REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION

Method and Apparatus For Coproduction of Pig Iron and High Quality...

METHOD AND APPARATUS FOR PRODUCING REDUCED METAL

METHOD FOR PRODUCING METALLIC IRON

METHOD FOR PRODUCING GRANULAR IRON

PROCESS FOR PRODUCING MOLTEN IRON AND APPARATUS FOR PRODUCING MOLTE...