C21B 3/08

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Class  C21B : MANUFACTURE OF IRON OR STEEL


Subclass 3/08: General features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06) Recovery of by-products, e.g. slag Treatment of liquid slag (slag wool C03B; slag stones C04B) Cooling slag

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
10486234 Nozzle and a tundish arrangement for the granulation of molten materialFeb 12, 16Nov 26, 19UVAN HOLDING AB
10167423 Granulated slag products and processes for their productionMar 20, 15Jan 01, 19Hatch Ltd.
10065892 Hydraulic binder composition using rapidly-cooled steelmaking reduced slag powder, and method of preparing the sameJan 26, 15Sep 04, 18Not available
9695485 Method for the treatment of steelwork slag and hydraulic mineral binderSep 06, 12Jul 04, 17LOESCHE GMBH
9663837 Device for recovering heat and fumes from slag resulting from the steel production cycleJun 03, 13May 30, 17G.A.P. S.P.A.
9650688 Method of recovering Fe from steel-making slagMar 28, 14May 16, 17INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
9624558 Blast-furnace blowing coal and method for producing sameApr 25, 13Apr 18, 17MITSUBISHI HEAVY INDUSTRIES, LTD.
9567215 Method for producing hydrogen and/or other gases from steel plant wastes and waste heatSep 25, 15Feb 14, 17TATA STEEL LIMITED
9200346 Dry granulation of metallurgical slagSep 06, 11Dec 01, 15PAUL WURTH S.A.
9139889 Apparatus for atomizing molten slag and recovering valuable metalAug 30, 11Sep 22, 15HYUNDAI STEEL COMPANY, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION,
9085809 Steam condensation tower for a granulation installationSep 30, 11Jul 21, 15PAUL WURTH S.A.
9084999 Processing method and system for high-temperature solid steel slagAug 26, 10Jul 21, 15BAOSHAN IRON & STEEL CO., LTD.
8998043 Fluid-cooled vibratory apparatus, system and method for coolingNov 12, 10Apr 07, 15General Kinematics Corporation
8991212 Method for manufacturing plate inorganic nonmetal material using molten slagSep 20, 11Mar 31, 15SHANDONG COKING GROUP CO., LTD.
5882375 Process for the production of hydraulic binders and/or alloys, such as for examples, ferrochromium or ferrovanadiumDec 31, 96Mar 16, 99HOLCIM TECHNOLOGY LTD
5735931 Slag granulation method and apparatusMar 25, 96Apr 07, 98SIEMENS PLC
5667147 Process and device for granulating and crushing molten materials and grinding stocksAug 31, 95Sep 16, 97HOLCIM TECHNOLOGY LTD

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2019/0203,307 ROLLER TREATMENT PROCESS AND TREATMENT DEVICE SUITABLE FOR TOTAL-AMOUNT STEEL SLAG TREATMENTMar 17, 17Jul 04, 19Baoshan Iron & Steel Co., Ltd.
2019/0169,703 GLASS-MAKING-QUALITY GRANULATED SLAG PROCESSFeb 11, 19Jun 06, 19Not available
2019/0071,742 STEAM CONDENSATION SYSTEM FOR A GRANULATION INSTALLATIONNov 30, 16Mar 07, 19Paul Wurth SA
2018/0312,933 METHOD OF SIMULTANEOUSLY RECYCLING PLASTICS AND DETOXIFYING CHROMITE ORE PROCESSING RESIDUE BY RESIDUAL HEAT FROM STEEL SLAGJul 05, 18Nov 01, 18Not available
2018/0171,422 METHOD FOR SOLIDIFYING LIQUID STEEL SLAGMar 27, 15Jun 21, 18Recoval Belgium; UNIVERSITÉ LIBRE DE BRUXELLES;
2018/0057,901 Method and device for granulating molten materialMar 14, 16Mar 01, 18RADMAT AG

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