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