| Patents for C21C 1 - Refining of pig-iron; Cast iron (3,137) |
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| 03/02/1988 | EP0257718A1 Injectable reagents for molten metals |
| 03/01/1988 | US4728361 Iron alloys, process and apparatus for introducing highly reactive metals into molten metal and process and product for removing impurities from molten metal |
| 02/25/1988 | DE3726053A1 Spheroidal graphite cast iron from scrap |
| 02/24/1988 | EP0256091A1 Magnesium calcium oxide composite |
| 02/23/1988 | US4726568 Easily stored and used disposable cover for a molten metal ladle |
| 02/16/1988 | CA1232766A1 Agents for the removal of impurities from a molten metal and a process for producing same |
| 02/16/1988 | CA1232765A1 Method and apparatus for adding heat to molten metal |
| 02/16/1988 | CA1232761A1 Process for the production of cast iron with spheroidal graphite |
| 02/09/1988 | US4723763 Device for continuous injection under low pressure of a powdered additive into a stream of molten metal |
| 01/19/1988 | CA1231532A1 Melting furnace operating method and implementation means |
| 01/13/1988 | EP0252318A1 Pressure type automatic pouring furnace for casting |
| 01/13/1988 | EP0252308A1 Process for treating metal melts and installation for performing the method |
| 01/13/1988 | EP0108107B1 Magnesium ferrosilicon alloy and use thereof in manufacture of nodular cast iron |
| 01/13/1988 | CN86102674B Smelting cast technique in cupola furnace at high carburetting and strong reducing state |
| 01/12/1988 | US4718645 Ladle stand arrangement for treating molten metal |
| 12/23/1987 | EP0249897A1 Process for the degassing, refining or filtering treatment of liquid metals or alloys and related apparatus |
| 12/22/1987 | US4714598 Cerium oxide, high temperature |
| 12/15/1987 | US4713180 Open-celled foam structure of silicon carbide, silica, alumina and refractory inorganic binder |
| 12/08/1987 | US4711290 Periodic oxidation of magnesium deposits in exhaust system; nonexplosive |
| 12/03/1987 | WO1987007306A1 Improvements in or relating to the production of iron |
| 12/02/1987 | EP0247354A1 Process for the adduction of metal elements in metal foundings |
| 12/01/1987 | US4709905 Casing assembly for injecting material into a metallurgical vessel |
| 12/01/1987 | CA1229777A1 Method of making cg iron |
| 11/25/1987 | EP0246936A1 Moulds from foundry iron, especially for the glas industry, having a variable structure within their walls |
| 11/24/1987 | US4708737 Magnesium or alluminum or alloys |
| 11/24/1987 | CA1229508A1 Method of making high strength ferritic ductile iron parts |
| 11/19/1987 | EP0245235A1 Method for treating pig iron |
| 11/11/1987 | CN87103098A Post-mix method and system for supply of powderized materials |
| 11/10/1987 | US4705664 Radiant heat vaporizing injector |
| 11/10/1987 | US4705561 Magnesium calcium oxide composite |
| 11/10/1987 | US4705261 Wire injection nozzle |
| 11/10/1987 | CA1228984A1 Wire injection apparatus |
| 10/28/1987 | EP0243269A2 Post-mix method and system for supply of powderized materials |
| 10/21/1987 | CN86107062A Separately-loaded recombustion cupola furnace |
| 10/07/1987 | CN86101957A Process of separating and recovering valuable elements from pig iron |
| 09/30/1987 | CN87102216A Process for production of pearlitic cast iron |
| 09/30/1987 | CN87101759A Magnesium, calcium oxide composite |
| 09/29/1987 | CA1227335A1 Process for treating steel with calcium to enhance the cold forming of the metal and reduce its silicon content |
| 09/24/1987 | DE3704116A1 Device for manipulating an inoculating ladle |
| 09/22/1987 | US4695318 Method of making steel |
| 09/01/1987 | US4690385 Method for storing and maintaining the temperature of molten metal |
| 08/19/1987 | CN85107495A Process for production of cast-iron particularly of cast-iron containing vermicular graphite |
| 08/18/1987 | US4687512 Desulfurizing mixture for metal melts, process for making it, and process for desulfurizing liquid metal therewith |
| 08/12/1987 | EP0232042A2 Cast or ductile iron inoculant |
| 08/12/1987 | CN87100402A Inoculant for gray pig iron |
| 08/04/1987 | US4684109 Melt-transfer device for the protected tapping of molten metal from one vessel to another |
| 07/30/1987 | WO1987004468A1 Magnesium calcium oxide composite |
| 07/29/1987 | CN86108629A Manufacture of medium mn content anti-wear nodular cast iron |
| 07/29/1987 | CN86108525A Fine grained desulfurizer for desulphurization of molten iron |
| 07/15/1987 | EP0228488A1 Metal bearing graphitic carbons |
| 07/07/1987 | US4678758 Porous ceramic filter body and manufacturing method therefor |
| 07/02/1987 | DE3644471A1 Treatment vessel for treating molten metal alloys |
| 07/01/1987 | EP0226994A1 Agent for desulphuration of molten iron and process for its production |
| 06/25/1987 | DE3643756A1 Process for aftertreating molten cast iron |
| 06/19/1987 | DE3544563A1 Agent for desulphurising molten iron |
| 06/19/1987 | DE3544562A1 Finely granular agent for desulphurising iron melts |
| 06/02/1987 | CA1222375A1 Process for adding calcium to a bath of molten ferrous material |
| 05/27/1987 | EP0223769A1 Ladle stand for treating molten metal |
| 05/27/1987 | EP0223722A1 Device and process for the low-pressure injection of pulverulent additives into a stream of molten metal |
| 05/26/1987 | US4667725 Method for producing cast-iron, and in particular cast-iron which contains vermicular graphite |
| 05/19/1987 | US4666533 Controlling solidification, subjecting to austempering heat treatment |
| 05/19/1987 | US4666516 Strontium, zirconium and/or titanium rich material |
| 05/19/1987 | US4666133 Wall member for converter chamber |
| 05/06/1987 | EP0220522A1 Mixture for desulfurizing metal melts, process for manufacturing it and its use |
| 04/28/1987 | CA1220944A1 Mold additives for use in continuous casting |
| 04/15/1987 | CN86102862A Desulfurizing process for molten iron outside furnace with high temp. liquid steel slag |
| 04/14/1987 | US4657588 Magnesium treatment, desulfurization |
| 04/14/1987 | CA1220323A1 Process and apparatus for fluidized calcination of diamide lime, and desulfurizing agent |
| 04/08/1987 | EP0217498A1 Hardenable cast iron |
| 04/02/1987 | DE3534975A1 Lance for treating crude iron or steel |
| 03/24/1987 | US4652299 Process for treating metals and alloys for the purpose of refining them |
| 03/24/1987 | CA1219441A1 Porous ceramic filter body and a method to fabricate such a body |
| 03/19/1987 | DE3531825A1 Lance for treating pig iron or steel |
| 02/25/1987 | EP0211130A1 A desulphurizing mixture for the treatment of cast iron |
| 02/24/1987 | US4645130 Method for treating carbide-based desulfurizing reagents for injection into molten iron |
| 02/24/1987 | CA1218215A1 Pouring tank and track transfer assembly |
| 02/19/1987 | DE3526749C1 Process for converting carbide-containing desulphurization slag into a less aggressive form |
| 02/17/1987 | US4643768 Barium zirconium, calcium, aluminum components; suppression of carbide formation, nucleation; non-metallic or oxide forms |
| 02/11/1987 | CN86102674A Smelting cast technique in cupola furnace at high carburetting and strong reducing state |
| 02/10/1987 | US4642135 Process for treating cast iron melts with silicon carbide |
| 02/03/1987 | CA1217361A1 Alloy and process for producing ductile and compacted graphite cast irons |
| 01/28/1987 | EP0210013A1 Process for desulfurization of ferrous metal melts |
| 01/27/1987 | US4638980 Apparatus and method for maintaining the temperature of molten metal |
| 01/24/1987 | CN86101370A Direct cast iron-melting method using blowing oxygen for blast furnace |
| 01/14/1987 | EP0208032A1 Metallurgical recarburizing material |
| 01/13/1987 | CA1216500A1 Fluxes for casting metals |
| 01/08/1987 | DE3540037A1 Process and apparatus for feeding lime into shaft furnaces |
| 01/07/1987 | CN85105289A Process for removing impure elements from pig iron, steel, other metals and alloys |
| 01/07/1987 | CN85104955A Process for desulphurising melten metal |
| 12/17/1986 | EP0110904B1 Device for casting, particularly converter for casting and/or post-treating molten metal |
| 12/10/1986 | EP0204076A2 Arrangement of a sleeve for the injection of gases or solids into a ladle containing a metallurgical melt |
| 12/10/1986 | CN85104427A Granular desulfurizing agent of melting iron and process for desulfuration of melting iron |
| 12/09/1986 | US4627601 Multistage chemical reactor |
| 12/09/1986 | CA1214942A1 Calcium oxide based flux compositions |
| 12/03/1986 | CN86102836A Sleeve arrangement for blasting gaseous or solid materials into molten metal container |
| 12/03/1986 | CN85104355A Process for producing nodular iron |
| 12/02/1986 | CA1214646A1 Removing phosphorous from iron |
| 11/25/1986 | US4624702 Method of vaporizing additives in metal melts |
| 11/19/1986 | CN86101396A Apparatus and method for heat preservation of melted metal |
| 11/18/1986 | CA1214044A1 Processes for producing and casting ductile and compacted graphite cast irons |