Patents
Sitemap › C22 - Metallurgy; Ferrous or non-ferrous alloys; Treatment of alloys or non-ferrous metals › C22B - Production or refining of metals; Pretreatment of raw materials › C22B 5 - General processes of reducing to metals
Patents for C22B 5 - General processes of reducing to metals (5,378)
10/1981
10/21/1981EP0038322A1 Process for recovering metals from metallic salt solutions
10/13/1981US4294433 Pyrometallurgical method and furnace for processing heavy nonferrous metal raw materials
09/1981
09/22/1981US4290804 Method for producing magnesium
09/22/1981US4290587 Ore treating apparatus
09/15/1981CA1108867A1 Hydrometallurgical process for the treatment of sulphidized compounds containing lead
09/08/1981CA1108411A1 Process for the suspension smelting of sulfide concentrates
08/1981
08/18/1981CA1107080A1 Submerged injection of gas into liquid pyro- metallurgical bath
08/18/1981CA1107064A1 Burner for flash smelting furnace
08/04/1981CA1106187A1 Method for cooling sponge metal
07/1981
07/29/1981EP0032492A1 Silico-thermal process for obtaining, in ladle, alloys based on manganese and silicium
07/21/1981CA1105266A1 Process and apparatus for recovering zinc
07/14/1981CA1104836A1 Titanium or zirconium reduction process by arc heater
06/1981
06/25/1981WO1981001715A1 Process and device for continuous reduction and melting of metal oxides and/or prereduced metal materials
06/23/1981US4274868 Oxidation, sulfiding
06/10/1981EP0029879A2 Process and apparatus for the thermal recovery of metallic carbides or metals
06/09/1981CA1102627A1 Method and apparatus for in-flight combustion of carbonaceous fuels
06/09/1981CA1102558A1 Reverberatory smelting of non-ferrous metal sulfide ores
06/02/1981CA1102141A1 Process for the extraction of non-ferrous metals from slags and other metallurgical by-products
05/1981
05/12/1981US4266971 Continuous process of converting non-ferrous metal sulfide concentrates
04/1981
04/30/1981WO1981001159A1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers
04/28/1981US4264778 Extraction furnace
04/21/1981CA1099521A1 Method of producing vanadium
04/21/1981CA1099517A1 Method for the reduction, extraction and separation of metals and/or metal compounds from metal containing raw materials
04/14/1981US4261736 Prevention of formation of aluminum oxycarbide by maintaining hightemperature
04/07/1981US4260364 Burner for flash smelting furnace
04/07/1981CA1098717A1 Flash smelting in confined space
04/07/1981CA1098716A1 Chemicothermal production of magnesium
03/1981
03/31/1981US4259106 Process for the roasting and chlorination of finely-divided iron ores and concentrates containing non-ferrous metals
02/1981
02/24/1981US4252560 Pyrometallurgical method for processing heavy nonferrous metal raw materials
02/17/1981US4251271 Submerged injection of gas into liquid-pyrometallurgical bath
02/10/1981US4249722 Apparatus for the flash oxidation of metal concentrates
02/05/1981WO1981000262A1 Silico-thermal process for obtaining,in ladle,alloys based on manganese and silicium
01/1981
01/27/1981US4247087 Furnace installation for the pyrometallurgical treatment of fine-grained ore concentrates
01/20/1981CA1093833A1 Reduction of stable oxides
01/20/1981CA1093793A1 Process of thermally treating solids
01/06/1981US4243411 Reduction of metal sulfides
01/06/1981CA1092811A1 Process and an installation for the heat treatment of fine material
01/06/1981CA1092810A1 Melting of fine particulate material in a high-speed rotary furnace
12/1980
12/30/1980US4242376 Method for metal plating of powder by substitution
12/30/1980US4242136 Process for producing metallic zirconium
12/23/1980CA1091937A1 Process for the separation of a gaseous mixture
12/16/1980CA1091442A1 Method for producing ferro-alloys
12/10/1980EP0020186A1 Method of converting non-ferrous metal mattes to the metal or metal sulphide
12/09/1980US4238228 Non-ferrous metal treatment
12/09/1980US4238222 Waelz process of volatilizing zinc and lead from iron oxide-containing materials
12/09/1980CA1091041A1 Production of metals
12/02/1980US4236915 Producing a metal matte
12/02/1980US4236700 Device for suspension smelting of finely-divided _oxide and/or sulfide ores and concentrates
12/02/1980CA1090584A1 Aluminum containing precipitating agent for precious metals and method for its use
11/1980
11/26/1980EP0019362A1 Method and apparatus for the treatment of matter with low temperature plasma
11/25/1980CA1090142A1 Methods and apparatus for the production of mg and ca by carbon reduction
11/25/1980CA1090140A1 Conversion of molybdenite concentrate to ferro- molybdenum and simultaneous removal of impurities by direct reduction with sulfide forming reducing agents
11/18/1980US4234168 Apparatus for producing low-oxygen iron-base metallic powder
11/18/1980CA1089902A1 Matte smelting
11/18/1980CA1089651A1 Method for the concentration of alkaline bismuthide in a material also containing molten lead
11/11/1980CA1089196A1 Process of thermally treating solids
11/04/1980CA1088757A1 Process for extracting nickel, nickel-copper, nickel- cobalt and nickel-copper-cobalt from concentrates or slags bearing the same
10/1980
10/28/1980CA1088316A1 Ore halogenation process
10/21/1980CA1087880A1 Process and an apparatus for producing low-oxygen iron-base metallic powder
10/21/1980CA1087861A1 Recovery of valuable metals and compounds thereof contained in molten slag
10/07/1980CA1086960A1 Method and apparatus for complex continuous processing of polymetallic raw materials
10/07/1980CA1086956A1 Method and apparatus for gaseous reduction of metal ores
09/1980
09/30/1980US4225347 Carbon carrier suitable for use in electrothermal reduction processes, and process for making it
09/30/1980CA1086498A1 Furnace installation for the pyrometallurgical treatment of fine-grain ore concentrates
09/02/1980CA1084974A1 Process for the production of aluminium
09/02/1980CA1084865A1 Method for recovering manganese metal from ferro- manganese
09/02/1980CA1084719A1 Process for treating lead-copper-sulphur charges
08/1980
08/26/1980CA1084275A1 Method of reducing zirconium
08/19/1980CA1083831A1 Process for the suspension smelting of sulfidic complex and/or mixed ores or concentrates in order to separate the impurity minerals or metals present in them
08/19/1980CA1083825A1 Process for concentration of titanium ore
08/12/1980US4217132 Method for in-flight combustion of carbonaceous fuels
07/1980
07/29/1980US4214897 Process for the extraction of non-ferrous metals from slags and other metallurgical by-products
07/22/1980US4213599 Molten alumina slag containing combined carbon
07/15/1980CA1081468A1 Method and apparatus for direct reduction of sulfur-containing iron ore
07/08/1980US4211556 Reverberatory smelting of non-ferrous metal sulfide ores
07/01/1980US4210441 Method for the continuous or discontinuous treatment of molten slag, particularly with contents of heavy metal oxides, for the recovery of portions contained therein of valuable metals or their combinations, respectively
07/01/1980US4210315 Means for producing a suspension of a powdery substance and a reaction gas
06/1980
06/26/1980WO1980001287A1 Direct production of copper metal
06/25/1980EP0012363A1 Method of and means for reducing ores
06/10/1980CA1079095A1 Vacuum smelting process for producing ferromolybdenum
05/1980
05/20/1980CA1077723A1 Method of producing a partially reduced product
04/1980
04/29/1980US4200454 Process for the volatilization of zinc and/or lead from metallurgical material
04/29/1980US4200264 Apparatus for obtaining Mg and Ca through carbon reduction
04/29/1980CA1076368A1 Upgrading the nickel content from low grade nickel lateritic iron ores by a combined process of segregation and magnetic separation or flotation
04/29/1980CA1076363A1 Method for the removal of mercury from sludges containing same
04/22/1980US4199545 Fluid-wall reactor for high temperature chemical reaction processes
04/22/1980US4199352 Sulfur trioxide as protective fluid
04/15/1980CA1075475A1 Aluminothermic process
04/15/1980CA1075472A1 Process for the recovery of antimony values from ores containing sulfo-antimony compounds of copper, and arsenic
04/08/1980CA1074996A1 Flash smelting furnace
03/1980
03/18/1980CA1073682A1 Fluidized hydrogen reduction process for recovery of copper
03/11/1980US4192676 High temperature reduction of copper salts
03/04/1980US4191560 Sulfiding
02/1980
02/26/1980CA1072343A1 Process and device for suspension smelting of finely-divided sulfidic and/or oxidic ores or concentrates
02/12/1980US4188362 Process for the treatment of platinum group metals and gold
02/06/1980EP0007662A1 Removal of zinc and lead from materials containing iron oxide by the rotary-kiln volatilizing process
01/1980
01/15/1980CA1069691A1 Vacuum revolving cylindrical furnace
01/09/1980EP0006420A1 Composition containing carbonaceous material for electrothermic reduction processes and method for the production thereof
12/1979
12/18/1979US4179283 Reduction of the metal oxides with a carboneous material
12/18/1979CA1068116A1 Process for the treatment of platinum group metals and gold
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