C21C 5/40

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9493853 Cleaning tool for cleaning particles contained in a slurrySep 23, 13Nov 15, 16Not available
9310133 Rotary hearth furnace exhaust gas duct apparatus and method for operating sameSep 02, 11Apr 12, 16KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Kobe Steel, Ltd.,
9157336 Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnacesApr 19, 11Oct 13, 15JP STEEL PLANTECH CO.
8926729 Method and apparatus for direct reduction ironmakingJun 23, 11Jan 06, 15MITSUBISHI HEAVY INDUSTRIES, LTD.
8562902 Direct smelting plantMar 01, 07Oct 22, 13TECHNOLOGICAL RESOURCES PTY. LIMITED
8545597 Method for operating a blast furnace and blast furnace installationOct 30, 09Oct 01, 13PAUL WURTH S.A.
8496728 Metallurgical process and plant thereforFeb 12, 09Jul 30, 13OUTOTEC OYJ
8291727 Apparatus for manufacturing ceramic microspheres for cementing applicationsDec 17, 10Oct 23, 12INTEVEP, S.A.
8142542 Producing metal and carbon dioxide with hydrogen recycleSep 22, 11Mar 27, 12PRAXAIR TECHNOLOGY, INC.
8142710 Reduction apparatus, reduction apparatus manufacture method, and vacuum smelting reduction furnace using the sameFeb 11, 09Mar 27, 12YAMAHA CORPORATION, MG Century Mining Corporation,
8100065 Flue dust discharging method and systemJun 04, 08Jan 24, 12CHINA STEEL CORPORATION
8057734 Producing metal and carbon dioxide with hydrogen recycleFeb 23, 10Nov 15, 11PRAXAIR TECHNOLOGY, INC.
8034283 Rotary hearth furnace and method of operating the sameOct 31, 06Oct 11, 11KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Kobe Steel, Ltd.,
8016910 Method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxideApr 19, 07Sep 13, 11SIEMENS VAI METALS TECHNOLOGIES GMBH
7968045 Installation for production of secondary steel based on scrapApr 01, 10Jun 28, 11SMS SIEMAG AKTIENGESELLSCHAFT
7909909 Method of production of secondary steel based on scrapApr 01, 10Mar 22, 11SMS SIEMAG AKTIENGESELLSCHAFT
7717978 Method and installation for production of secondary steel based on scrapDec 02, 05May 18, 10SMS SIEMAG AKTIENGESELLSCHAFT, SMS DEMAG,
7625423 Method for obtaining pure copperOct 06, 05Dec 01, 09XSTRATA TECHNOLOGY PTY LTD.
7393496 Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnaceAug 22, 05Jul 01, 08OUTOTEC OYJ
6077473 Torch cutting enclosure having fume collection provisionsMay 07, 98Jun 20, 00REPUBLIC ENGIEERED PRODUCTS, INC., USS/KOBE STEEL COMPANY,

Showing 1 to 20 of 37 results