| Patents for C22B 5 - General processes of reducing to metals (5,378) |
|---|
| 12/13/1979 | WO1979001056A1 High temperature reduction of copper salts |
| 12/11/1979 | US4178174 Direct production of copper metal |
| 12/04/1979 | US4177063 Method and apparatus for reducing metal oxide |
| 12/04/1979 | US4177060 Reduction of stable oxides |
| 11/27/1979 | US4175951 Method and apparatus for preparing a reducing gas stream |
| 11/06/1979 | CA1065579A1 Methods of making reactive metal silicide |
| 10/16/1979 | US4171281 Coke and sawdust |
| 10/16/1979 | US4171216 Process for refining non-ferrous matte |
| 10/09/1979 | CA1063808A1 Process for the reduction of complex metallic ores |
| 10/02/1979 | US4169725 Process for the refining of sulfidic complex and mixed ores or concentrates |
| 10/02/1979 | US4169722 Aluminothermic process |
| 10/02/1979 | US4169583 Apparatus for reducing ore |
| 09/18/1979 | US4168157 Process for the suspension smelting of sulfide concentrates |
| 09/18/1979 | CA1062514A1 Reduction smelting of manganese nodules with a liquid reductant |
| 09/11/1979 | CA1062019A1 Process and device for suspension smelting of finely-divided oxide and/or sulfide ores and concentrates, especially copper and/or nickel concentrates rich in iron |
| 09/05/1979 | EP0003853A1 Process for continuously converting non-ferrous metal sulphide concentrates |
| 09/04/1979 | CA1061571A1 Cuprion process start-up control |
| 09/04/1979 | CA1061567A1 Pyrometallurgical process for lead refining |
| 08/28/1979 | US4166192 Matte smelting |
| 08/28/1979 | US4165979 Long mixing tunnel |
| 08/14/1979 | CA1060218A1 Process and a furnace plant for batch production of sponge metal |
| 07/31/1979 | US4162916 Process for the treatment of complex metal ores containing, in particular, manganese and copper, such as oceanic nodules |
| 07/31/1979 | US4162915 Process for treating lead-copper-sulphur charges |
| 07/10/1979 | CA1057960A1 Method of ore reduction with an arc heater |
| 07/03/1979 | US4159904 Process for extracting bismuth from a bismuth-bearing material |
| 06/19/1979 | CA1056603A1 Fuel supply control to the reaction shaft in the operation of a flash smelter |
| 05/22/1979 | US4156102 Heat exchanging |
| 05/22/1979 | US4155749 With oxygen; cooling with sulfur trioxide |
| 05/15/1979 | CA1054379A1 Halidation of nonferrous metal values in manganese oxide ores |
| 05/15/1979 | CA1054378A1 Reduction of mangenese |
| 05/08/1979 | US4153450 Flow and composition of reducing gas |
| 05/01/1979 | US4152139 Method for cooling sponge metal |
| 05/01/1979 | CA1053471A1 Selective reduction of oxidized ore |
| 04/24/1979 | CA1053008A1 Method of operating converter furnace for treating matte |
| 04/17/1979 | US4149876 Process for producing tantalum and columbium powder |
| 04/10/1979 | US4148630 Direct production of copper metal |
| 04/03/1979 | US4147535 Annular flow, spreading |
| 04/03/1979 | US4147534 Method for obtaining Mg and Ca through carbon reduction |
| 03/27/1979 | US4146389 Thermal reduction process of aluminium |
| 03/27/1979 | CA1051202A1 Method for gaseous reduction of metal ores |
| 03/20/1979 | CA1050767A1 Treatment of chalcopyrite |
| 03/13/1979 | US4144051 Process for thermally treating solids with high-oxygen gases, especially for pyrometallurgical applications |
| 03/13/1979 | US4143865 Flash smelting furnace |
| 03/13/1979 | CA1050282A1 Recovery of nickel and other metals from sulphide ores |
| 03/13/1979 | CA1050281A1 Two-stage fluid bed reduction of manganese nodules |
| 03/06/1979 | CA1049794A1 Separation and/or purification of precious metals |
| 03/06/1979 | CA1049792A1 Process and apparatus for producing molten iron |
| 02/27/1979 | CA1049266A1 Process for the direct reduction of metal oxides |
| 02/20/1979 | US4140523 Reduction of magnesium oxide with aluminum, pyrometallurgy |
| 02/13/1979 | US4139371 Process and device for suspension smelting of finely divided oxide and/or sulfide ores and concentrates, especially copper and/or nickel concentrates rich in iron |
| 02/13/1979 | US4139181 Reduction of magnesium oxide with carbon, no scale formation |
| 02/08/1979 | WO1979000055A1 A method for the manufacture of an additive material for the production of crude iron |
| 01/30/1979 | CA1047259A1 Condensation of zinc vapour |
| 01/23/1979 | US4135923 Purification of precious metals by alloying with copper |
| 01/23/1979 | CA1046733A1 Preparation of metal fluorides |
| 01/16/1979 | CA1046290A1 Continuous preparation of pure metals by gaseous reduction |
| 01/09/1979 | CA1045831A2 Metallurgical process using oxygen |
| 01/09/1979 | CA1045830A2 Metallurgical process using oxygen |
| 01/02/1979 | US4132763 Process for the production of pure, silicon elemental semiconductor material |
| 12/05/1978 | US4128231 Indirectly fired vertical shaft furnace |
| 12/05/1978 | CA1043594A1 Production of copper by gaseous reduction |
| 12/05/1978 | CA1043573A1 Method for reducing metal chloride |
| 11/28/1978 | US4127406 Process for the heat treatment of fine material |
| 10/24/1978 | US4121922 Method and apparatus for measuring percentage reduction in a metal ore reduction reactor |
| 10/24/1978 | CA1041026A1 Process for the recovery of carbonyls and carbon monoxide from carbonyl process gases |
| 10/24/1978 | CA1040864A1 Method for controlling the flux feed rate in the operation of a flash smelting furnace |
| 10/03/1978 | CA1039511A1 Process for thermal dissociation of molybdenum disulfide |
| 09/19/1978 | US4115108 Matte smelting |
| 09/12/1978 | US4113479 Vacuum smelting process for producing ferrotungsten |
| 09/12/1978 | US4113470 Process for suspension smelting of finely-divided sulfidic and/or oxidic ores or concentrates |
| 09/05/1978 | US4112046 Disintegration of silica-rich chromite |
| 08/22/1978 | US4108634 Using cyclone chamber |
| 08/22/1978 | CA1036830A1 Autogenous smelting of lead in a top blown rotary converter |
| 08/15/1978 | US4107262 Cuprion process start-up control |
| 08/08/1978 | US4105440 Sodium, potassium, rubidium or cesium |
| 08/08/1978 | US4105192 Process and apparatus for producing zirconium sponge |
| 07/18/1978 | US4101316 Conversion of molybdenite concentrate to ferro-molybdenum and simultaneous removal of impurities by direct reduction with sulfide forming reducing agents |
| 07/11/1978 | US4099963 Method for the batchwise reduction of metal ores |
| 07/11/1978 | US4099962 Method and apparatus for measuring and controlling the percentage reduction of ore in a moving bed gaseous reduction reactor |
| 07/11/1978 | US4099959 Process for the production of aluminium |
| 07/11/1978 | US4099958 Method of producing vanadium |
| 06/20/1978 | US4095974 High temperature chemical reaction processes utilizing fluid-wall reactors |
| 06/13/1978 | US4094667 Melting of fine particulate material in a high-speed rotary furnace |
| 06/06/1978 | US4093194 Process and reactor for making magnesium metal |
| 05/30/1978 | US4092154 Reducing agent, alkali metal hydrosulfites or borohydrides and hydrazine compounds |
| 05/09/1978 | US4088310 Apparatus for suspension smelting of finely-grained oxide and/or sulfide ores and concentrates |
| 05/02/1978 | US4087275 Method for direct reduction of sulfur-containing iron ore |
| 05/02/1978 | US4087274 Method of producing a partially reduced product from finely-divided metal sulphides |
| 04/25/1978 | US4085923 Furnaces |
| 04/04/1978 | US4082833 Carbo-chlorination to produce aluminum chloride and silicon chloride; sulfur or sulfur compound as promoter |
| 03/21/1978 | US4080194 Titanium or zirconium reduction process by arc heater |
| 02/28/1978 | US4076954 Chemical reduction, smelting |
| 02/14/1978 | US4073641 Selective reduction of nickel ore with a low nickel content |
| 02/07/1978 | US4072510 Production of ferrochrome alloy |
| 02/07/1978 | US4072504 Method of producing metal from metal oxides |
| 02/07/1978 | CA1025669A1 Process for refining copper containing mattes and related apparatus_ |
| 01/31/1978 | US4071229 Vacuum revolving cylindrical furnace |
| 01/24/1978 | US4070181 Method for reduction of finely divided metal oxide material |
| 01/10/1978 | US4067728 Method for gaseous reduction of metal ores |
| 01/03/1978 | US4066445 Process for producing magnesium utilizing aluminum metal reductant |