C21B 3/04

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Class  C21B : MANUFACTURE OF IRON OR STEEL


Subclass 3/04: General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
10604816 Combined system for producing steel and method for operating the combined systemDec 11, 14Mar 31, 20THYSSENKRUPP AG
10526669 Method and system for forming carbonate from steel slagJul 25, 17Jan 07, 20Doosan Heavy Industries Construction Co., Ltd.
10435760 Fluxing agent, process of its production, agglomeration mixture and use of slug from secondary metallurgyJul 02, 14Oct 08, 19ECOFER, S.R.O.
10280489 Direct smelting processNov 30, 16May 07, 19Tata Steel Limited
10023945 Direct smelting processMay 18, 11Jul 17, 18Tata Steel Limited
9896635 Method of enhancing the dry grinding efficiency of petcokeJan 13, 15Feb 20, 18HOLCIM TECHNOLOGY LTD
9664444 Slag discharge door device for an electric furnaceAug 30, 11May 30, 17HYUNDAI STEEL COMPANY
9656924 Process for producing a zinc sulfate solution, obtained from steelworks powder and respective fertilizer inputsApr 30, 14May 23, 17Not available
9493853 Cleaning tool for cleaning particles contained in a slurrySep 23, 13Nov 15, 16Not available
9347108 Advanced technology for iron-chrome alloys production and related plantFeb 25, 14May 24, 16Not available
9255302 Method and device for reducing iron-oxide-containing feedstocks in a high-pressure reducing unitJan 11, 13Feb 09, 16PRIMETALS TECHNOLOGIES AUSTRIA GMBH
9212404 Preparation method for stainless steel slags and steelworks slags for recovery of metalNov 11, 10Dec 15, 15LOESCHE GMBH
9017596 Slag removal apparatus and methodJan 31, 13Apr 28, 15SIEMENS ENERGY, INC.
8834600 Extraction process for reactive metal oxidesJun 11, 04Sep 16, 14UNIVERSITY OF LEEDS
8753422 Apparatus for and method of production of iron, semi steel and reducing gasesDec 09, 11Jun 17, 14Not available
8709131 Method and system for the production of direct reduced iron using a synthesis gas with a high carbon monoxide contentFeb 15, 12Apr 29, 14MIDREX TECHNOLOGIES, INC.
8158053 Refractory articlesJul 20, 06Apr 17, 12FOSECO INTERNATIONAL LIMITED
8119060 Solder recovery deviceJan 21, 10Feb 21, 12RICOH COMPANY, LTD.
8075663 Anti-oxidative agent for molten metal, method of preparing and method of using thereofMar 29, 10Dec 13, 11SHENZHEN KUNQI XINHUA CO., LTD.
8048364 Method and apparatus for manufacturing aluminum alloy strip for lithographic printing platesJun 13, 08Nov 01, 11FUJIFILM CORPORATION

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2019/0256,947 PROCESSING OF CLINKER CONTAINING POLYMETALLIC RAW MATERIALSFeb 22, 18Aug 22, 19Not available
2013/0116,105 DIRECT SMELTING PROCESSMay 18, 11May 09, 13TECHNOLOGICAL RESOURCES PTY. LIMITED

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