C21B 5/06

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9868998 Method and apparatus for supplying blast to a blast furnaceDec 10, 13Jan 16, 18PRIMETALS TECHNOLOGIES, LIMITED
9868999 Methods and systems for producing direct reduced iron utilizing a petroleum refinery bottoms or petroleum coke gasifier and a hot gas cleanerJul 14, 15Jan 16, 18MIDREX TECHNOLOGIES, INC.
9605326 Method and system for operating a blast furnace with top-gas recycle and a fired tubular heaterJul 03, 13Mar 28, 17HYL TECHNOLOGIES, S.A. DE C.V.
9581387 Method for iron-making with full oxygen and hydrogen-rich gas and equipment thereofFeb 13, 15Feb 28, 17CENTRAL IRON AND STEEL RESEARCH INSTITUTE, SHANDONG COKING GROUP CO., LTD., SHANDONG TIEXIONG METALLURGICAL TECHNOLOGY CO., LTD.,
9574247 Method and device for operating a smelting reduction processAug 21, 14Feb 21, 17PRIMETALS TECHNOLOGIES AUSTRIA GMBH
9557113 Direct reduced iron manufacturing systemNov 16, 12Jan 31, 17MITSUBISHI HEAVY INDUSTRIES, LTD.
9376730 Production of ironNov 03, 11Jun 28, 16TECHNOLOGICAL RESOURCES PTY. LIMITED
9322597 Carbon dioxide reduction in steelworksJun 12, 12Apr 26, 16SIEMENS AKTIENGESELLSCHAFT
9222042 Process for regulating joule value of offgases from plants for pig iron production or of synthesis gasAug 03, 12Dec 29, 15PRIMETALS TECHNOLOGIES AUSTRIA GMBH
9034080 Method and device for producing a fluid enriched with carbon dioxide from a waste gas of a ferrous-metallurgy unitDec 01, 11May 19, 15L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
9005332 Process for producing pig iron or liquid primary steel productsApr 12, 11Apr 14, 15PRIMETALS TECHNOLOGIES AUSTRIA GMBH
8992664 Blast furnace top gas recycling process and corresponding recycling equipmentMar 17, 09Mar 31, 15Arcelormittal Investigacion Y Desarrollo SL, Arcelormittal Investigacion Y Desarrollo SL,
8992823 Method of operating regenerative heaters in blast furnace plantAug 13, 12Mar 31, 15Paul Wurth Refractory & Engineering GmbH, PAUL WURTH S.A., Wurth S.A.; Paul,
8986601 Method for iron-making with full oxygen and hydrogen-rich gas and equipment thereofAug 30, 10Mar 24, 15CENTRAL IRON AND STEEL RESEARCH INSTITUTE, SHANDONG COKING GROUP CO., LTD., SHANDONG TIEXIONG METALLURGICAL TECHNOLOGY CO., LTD.,
8968441 Method and system for producing pig iron or fluid steel pre-productsJan 14, 10Mar 03, 15PRIMETALS TECHNOLOGIES AUSTRIA GMBH
8926729 Method and apparatus for direct reduction ironmakingJun 23, 11Jan 06, 15MITSUBISHI HEAVY INDUSTRIES, LTD.
8911700 Process and installation for producing substitute gasFeb 03, 10Dec 16, 14PRIMETALS TECHNOLOGIES AUSTRIA GMBH
8889060 Device for regulating the temperature of a gas in a hot gas mainMay 18, 10Nov 18, 14Paul Wurth Refractory & Engineering GmbH, PAUL WURTH S.A.,
8845778 Method for feeding a burden to a blast furnaceApr 21, 10Sep 30, 14PAUL WURTH S.A.
8834599 Method and device for operating a smelting reduction processSep 29, 09Sep 16, 14PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Showing 1 to 20 of 44 results