Patents for C22B 4 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (1,486) |
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09/23/1998 | EP0866467A1 Metallic beryllium pebbles for nuclear fusion reactors |
09/22/1998 | US5812586 Method and apparatus for removing a molten slag with a vacuum from a chamber |
09/16/1998 | EP0713537B1 A consumable electrode method for forming micro-alloyed products |
08/04/1998 | US5788735 Plasma arc furnaces for pyrolysis and combustion, smelting of soils and forming slags |
06/30/1998 | US5772726 Method of separating vanadium from ash |
06/16/1998 | US5766303 Introducing lead-containing hazardous material into hollow electrode of plasma arc furnace to pyrolyze and render non-hazardous |
06/10/1998 | EP0815271A4 Fast quench reactor and method |
05/20/1998 | CN1182456A Fast quench reactor and method |
05/12/1998 | US5750822 Processing of solid mixed waste containing radioactive and hazardous materials |
05/12/1998 | US5749937 Fast quench reactor and method |
04/14/1998 | CA2015213C Tic based materials and process for producing same |
04/09/1998 | WO1997049641A3 Method and system for high-temperature waste treatment |
04/07/1998 | US5735930 Melting magma containing silicon carbide, basaltic clay, and metals with alkali hydroxide and oxidizing agent, injecting oxygen, electrolyzing, separating metals and other insolubles, crystallizing silicates |
03/25/1998 | CN1177013A Method and apparatus for smelting high melting metal by plasma |
03/19/1998 | WO1998011557A1 Process for preparing metallic beryllium pebbles |
03/19/1998 | WO1998011556A1 Metallic beryllium pebbles for nuclear fusion reactors |
03/19/1998 | DE19740188A1 Apparatus for laser-assisted gas alloying of titanium and alloys |
03/18/1998 | EP0829325A1 Device for laser gas alloying of titanium and its alloys |
03/04/1998 | EP0734355B1 Recovery of spent catalyst |
02/25/1998 | CN1037531C Method for producing easily volatile metals, such as zinc, lead and cadmium of sulphidic raw materials |
02/12/1998 | WO1998005418A1 Method and apparatus for microwave treatment of metal ores and concentrates in a fluidized bed reactor |
02/12/1998 | CA2262956A1 Method and apparatus for microwave treatment of metal ores and concentrates in a fluidized bed reactor |
01/07/1998 | EP0815271A1 Fast quench reactor and method |
01/06/1998 | US5705132 Combustion synthesis continuous flow reactor |
01/02/1998 | DE19625539A1 Thermal processing of substances in plasma furnace |
12/31/1997 | WO1997049641A2 Method and system for high-temperature waste treatment |
12/31/1997 | CA2257544A1 Method and system for high-temperature waste treatment |
12/30/1997 | US5702621 Filling the inter-electrode space with inorganic pellets, supplying a pulse current to form a glass |
12/24/1997 | WO1997049266A1 Method and apparatus for removing a molten material with a vacuum from a chamber |
12/24/1997 | CA2259130A1 Method and apparatus for removing a molten material with a vacuum from a chamber |
12/23/1997 | US5700308 Method for enhancing reaction rates in metals refining extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes |
12/04/1997 | WO1997045220A1 Method and apparatus for producing balls |
12/03/1997 | EP0625216B1 Process for remediation of lead-contaminated soil and waste battery casings |
12/03/1997 | EP0362253B1 Process for treating liquid metals |
11/25/1997 | US5690887 Method for obtaining a zirconia based item |
10/30/1997 | WO1997040197A1 Metal containing compound reduction and melting process |
09/18/1997 | WO1997034019A1 Microwave treatment of metal bearing ores and concentrates |
09/18/1997 | CA2248889A1 Microwave treatment of metal bearing ores and concentrates |
09/04/1997 | WO1997032047A1 Hermetically closeable smelting/refining furnace |
07/24/1997 | WO1997026380A1 Chemical component recovery from ligated-metals |
05/06/1997 | US5626249 Plasmalysis treatment method for waste matter |
04/24/1997 | WO1997014528A1 Plasmalysis treatment method for waste matter |
04/15/1997 | US5620936 Tantalum and niobium salts |
02/25/1997 | US5605640 Reactor for the treatment of particulate matter by electrical discharge |
01/22/1997 | EP0722376A4 Treatment of particulate matter by electrical discharge |
01/15/1997 | CN1033823C Improved heater arrangement for aluminium refining systems |
12/11/1996 | EP0696327B1 An electrical method for conversion of molecular weights of particulates |
12/11/1996 | CN1033523C Technology for producing low-iron silicon-aluminium alloy and self-baking electrode |
12/05/1996 | DE19519722A1 Pyrometallurgical prodn. of niobium oxide |
12/03/1996 | CA2008167C Method and apparatus for manufacturing high-grade nickel matte |
10/30/1996 | EP0739865A1 Sintered zirconia-based article and process for its preparation |
10/23/1996 | CN1133892A Process for production of compound deoxidizer of Si-Al-Ba-Fe alloy in one-step in blast furnace |
10/02/1996 | EP0734355A1 Recovery of spent catalyst |
09/25/1996 | CN1131641A Method for obtaining ziroonia based item |
09/19/1996 | WO1996028577A1 Fast quench reactor and method |
08/20/1996 | US5548611 Method for the melting, combustion or incineration of materials and apparatus therefor |
08/07/1996 | CN1128546A A consumable electrode method for forming micro-alloyed products |
07/25/1996 | WO1996022395A1 Method for enhancing reaction rates in metals refining, extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes and the like |
07/24/1996 | EP0722376A1 Treatment of particulate matter by electrical discharge |
07/03/1996 | EP0719348A1 METHOD FOR PRODUCTION OF FeSi |
06/19/1996 | EP0717017A1 Process for obtaining a zirconia-based article |
06/12/1996 | EP0417296B1 Direct smelting process |
05/29/1996 | EP0713537A1 A consumable electrode method for forming micro-alloyed products |
03/13/1996 | CN1118380A Process for producing high carbon content chrome iron |
03/05/1996 | CA2025015C Direct smelting process |
02/14/1996 | EP0696327A1 An electrical method for conversion of molecular weights of particulates |
01/02/1996 | CA1337848C Process for treating liquid metals |
12/12/1995 | CA2067054C Heater arrangement for aluminum refining systems |
11/22/1995 | CN1030336C Process for smelting high grade Si-Ba-Ca alloy in smelting furnace |
09/28/1995 | WO1995025822A1 Casting materials |
09/19/1995 | CA1337020C Method of producing titanium through use of a reverse polarity d.c. plasma arc heating process |
09/05/1995 | US5447548 Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment |
08/08/1995 | US5439498 Plasma arc furnace unit having plasma arc torch that converts battery casings into combustible gas, volatilizes lead contaminatns and vitrifyes the soil |
06/22/1995 | WO1995016636A1 Recovery of spent catalyst |
06/14/1995 | EP0657230A1 Process and system for the on-site remediation of lead-contaminated soil and waste battery casings |
05/31/1995 | CN1103232A Reactor and method for the treatment of particulate matter by electrical discharge |
05/17/1995 | EP0653252A1 Process and system for the remediation of soil containing waste material |
05/17/1995 | CN1028437C Formula for producing silica-alumina iron by use of ore-heating method and prodn. process thereof |
05/02/1995 | US5411611 Consumable electrode method for forming micro-alloyed products |
04/25/1995 | US5409584 Electrical method for conversion of molecular weights of particulates |
04/04/1995 | US5403991 Reactor and method for the treatment of particulate matter by electrical discharge |
04/04/1995 | US5403380 Method for producing easily volatile metals, such as zinc, lead, mercury and cadmium, of sulfidic raw materials |
03/23/1995 | WO1995008005A1 METHOD FOR PRODUCTION OF FeSi |
03/23/1995 | CA2170057A1 Method for production of fesi |
03/22/1995 | CN1027978C Method and apparatus for manufacturing of high-grade nickel matte |
02/23/1995 | WO1995005263A1 Treatment of particulate matter by electrical discharge |
02/16/1995 | WO1995004836A1 A consumable electrode method for forming micro-alloyed products |
12/27/1994 | US5376247 Providing mixture of silicon dioxide, carbon source, calcium source to furnace for reduction, controlling calcium concentration, recovering silicon, determining calcium yield, measuring electrode comsumption, adjusting carbon balance |
12/06/1994 | US5370724 Pyrolysis in a plasma arc furnace to form vitrified slag and a combustible gas |
11/30/1994 | EP0626344A1 Control of carbon balance in a silicon smelting furnace by monitoring calcium |
11/23/1994 | EP0625869A2 Method for the melting, combustion or incineration of materials and apparatus therefor |
11/23/1994 | EP0625216A1 Process for remediation of lead-contaminated soil and waste battery casings |
11/08/1994 | CA2121863A1 Control of carbon balance in a silicon smelting furnace by monitoring calcium |
11/01/1994 | CA1332789C Method of producing magnesium by the metallothermic reduction of magnesium oxide |
10/27/1994 | WO1994024318A1 An electrical method for conversion of molecular weights of particulates |
10/27/1994 | CA2160773A1 An electrical method for conversion of molecular weights of particulates |
10/18/1994 | US5356524 Electrical method for conversion of molecular weights of particulates |
10/05/1994 | CN1093116A Technology for producing low-iron silicon-aluminium alloy and self-baking electrode |
06/29/1994 | CN1088623A Electric melting method for making stable zirconium oxide |
06/15/1994 | CN1025052C Process for prepn. of rare-earth silicon iron alloy by carbon thermal reducing bastnaesite |