| Patents for C22B 4 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (1,486) |
|---|
| 10/12/1982 | US4353738 Lead smelting method |
| 08/04/1982 | EP0057029A1 Process and apparatus for treating powdery materials at high temperatures |
| 07/20/1982 | US4340420 Chromiferous product |
| 04/13/1982 | US4324582 Process for the recovery of copper from its ores |
| 04/06/1982 | US4323391 Process for recovering zinc |
| 03/23/1982 | US4321089 Process for the recovery of molybdenum and rhenium from their sulfide ores |
| 03/23/1982 | CA1120522A1 Direct current smelting furnace |
| 03/16/1982 | CA1119820A1 Carbon carrier suitable for use in electrothermal reduction processes, and process for making it |
| 01/12/1982 | US4310350 Recovering non-volatile metals from dust containing metal oxides |
| 01/05/1982 | US4309170 Vertical shaft furnace |
| 12/16/1981 | EP0041841A1 Process for the recovery of metals from their ores |
| 11/10/1981 | CA1112303A1 Arc control in plasma arc reactors |
| 10/20/1981 | US4295880 Apparatus and method for recovering organic and non-ferrous metal products from shale and ore bearing rock |
| 08/18/1981 | CA1107078A1 Thermal reduction process of aluminum |
| 07/28/1981 | CA1105972A1 Electric arc furnace operation |
| 07/21/1981 | CA1105266A1 Process and apparatus for recovering zinc |
| 07/14/1981 | CA1104835A1 Method of and electric furnace for processing nonferrous molten slags |
| 06/16/1981 | US4273576 Continuous shielded arc melting, controlling and adjusting slag le |
| 04/21/1981 | CA1099521A1 Method of producing vanadium |
| 01/27/1981 | CA1094329A1 Method of carbothermically producing aluminum-silicon alloys |
| 01/20/1981 | CA1093833A1 Reduction of stable oxides |
| 12/23/1980 | CA1091924A2 Mechanically stirred furnace or reactor for pyrometallurigical operations and method of operation |
| 11/26/1980 | EP0019362A1 Method and apparatus for the treatment of matter with low temperature plasma |
| 11/18/1980 | US4234334 Arc control in plasma arc reactors |
| 11/18/1980 | CA1089902A1 Matte smelting |
| 11/04/1980 | CA1088758A1 Plant for and method of electroslag remelting of metals and alloys |
| 10/07/1980 | US4226406 Apparatus for the complex continuous processing of polymetallic raw materials |
| 09/30/1980 | US4225347 Carbon carrier suitable for use in electrothermal reduction processes, and process for making it |
| 09/02/1980 | CA1084974A1 Process for the production of aluminium |
| 07/22/1980 | US4213955 Calcium carbide from lime and carbon |
| 07/22/1980 | US4213599 Molten alumina slag containing combined carbon |
| 04/15/1980 | CA1075473A1 Copper extraction by arc heater |
| 04/08/1980 | CA1075325A1 Plasma reactor and procedure for reduction of metal oxides |
| 02/19/1980 | CA1072049A1 Plasma-arc process for production of powders of chemical products |
| 01/22/1980 | US4185159 Method for melting metals in a channel-type induction furnace |
| 01/09/1980 | EP0006420A1 Composition containing carbonaceous material for electrothermic reduction processes and method for the production thereof |
| 12/25/1979 | CA1068486A Aluminum melting furnace |
| 12/11/1979 | CA1067705A1 Method of and device for effecting electroslag remelting processes |
| 12/04/1979 | US4177060 Reduction of stable oxides |
| 11/06/1979 | CA1065794A1 Method of reducing ores |
| 10/30/1979 | CA1065415A1 Titanium and zirconium production by arc heater |
| 09/18/1979 | US4168156 Method of and electric furnace for processing nonferrous molten slags |
| 08/28/1979 | US4166192 Matte smelting |
| 08/14/1979 | US4164553 Plasma arc process for the production of chemical products in power form |
| 08/07/1979 | CA1060107A1 Polyphase arc heater system |
| 07/17/1979 | US4161399 Method for electroslag remelting of a manganese-copper-nickel alloy |
| 07/17/1979 | US4161398 Barium fluoride-calcium fluoxide flux |
| 07/10/1979 | CA1057960A1 Method of ore reduction with an arc heater |
| 07/03/1979 | CA1057509A1 Metal powder production by direct reduction in an arc heater |
| 07/03/1979 | CA1057508A1 Metal powder production by direct reduction in an arc heater |
| 05/15/1979 | US4154972 Apparatus and procedure for reduction of metal oxides |
| 04/10/1979 | US4148628 Carbon reduction of chromium oxide |
| 02/27/1979 | US4141721 Sulfides and oxides of zinc and copper, lead or antimony, reduction in gaseous plasma jet |
| 02/13/1979 | CA1048269A1 Apparatus for continuous vacuum-refining of metals |
| 12/12/1978 | US4129742 Plasma arc vertical shaft furnace |
| 12/05/1978 | CA1043575A1 Method and device for melting metals |
| 10/24/1978 | US4122296 Distributing and poking machine for metallurgical furnaces |
| 09/19/1978 | US4115108 Matte smelting |
| 08/15/1978 | US4107445 Titanium and zirconium production by arc heater |
| 07/11/1978 | US4099959 Process for the production of aluminium |
| 07/11/1978 | US4099958 Method of producing vanadium |
| 04/04/1978 | US4082914 Method of stabilizing arc voltage in plasma arc furnace and apparatus for effecting same |
| 04/04/1978 | US4082544 Electric induction heating of materials of low electrical conductivity |
| 02/28/1978 | US4076954 Chemical reduction, smelting |
| 02/14/1978 | US4073640 Method of melting slag |
| 12/06/1977 | US4061492 Method of ore reduction with an arc heater |
| 10/11/1977 | US4053303 Method of carbothermically producing aluminum-silicon alloys |
| 07/05/1977 | US4033757 Carbothermic reduction process |
| 06/14/1977 | US4029494 Process for smelting and recovery of a material containing noble metals |
| 05/10/1977 | US4022264 Electroslag refining |
| 03/29/1977 | US4015069 Apparatus for extracting metals from ore |
| 03/22/1977 | US4013867 Polyphase arc heater system |
| 01/18/1977 | US4003739 Copper extraction by arc heater |
| 01/11/1977 | US4002466 Method of reducing ores |
| 11/16/1976 | US3992193 Metal oxides, quenching |
| 11/02/1976 | US3989511 Metal powder production by direct reduction in an arc heater |
| 09/07/1976 | US3979205 Metal recovery method |
| 08/31/1976 | US3977865 Method for extracting metals from ore |
| 08/24/1976 | US3976472 Method and an electrically heated device for producing molten metal from powders or lumps of metal oxides |
| 08/17/1976 | US3975188 Arc heater reduction of zinc roast |
| 06/01/1976 | US3960544 Process for the production of iron-containing titaniferous particles |
| 05/04/1976 | US3954954 Plasma method and apparatus for carrying out high temperature chemical reactions |
| 03/09/1976 | US3942975 Method and apparatus for reducing matter to constituent elements and separating one of the elements from the other elements |
| 03/02/1976 | US3941668 Refractory ore beneficiation |
| 01/13/1976 | US3932173 Inductially heated gas lift pump action method for melt reduction |
| 01/13/1976 | US3932171 Process for high temperature treatment of materials |