| Patents for C22B 5 - General processes of reducing to metals (5,378) |
|---|
| 06/23/1993 | EP0449890A4 Process for the production of metals, alloys and ceramic materials |
| 06/23/1993 | EP0366701B1 Magnesium production |
| 06/23/1993 | CN1021347C Method for smelting reduction of ni ore |
| 06/09/1993 | EP0544828A1 Method for maintaining fluidization in a fluidized bed reactor |
| 06/02/1993 | CN1072730A Method for directly smelting silicon-aluminum alloy by mineral-heating furnace |
| 06/02/1993 | CN1072614A Method and apparatus for treating gases and particulate solids in fluid bed |
| 05/26/1993 | EP0543758A1 Apparatus for reducing iron oxide materials in a circulating fluidized bed |
| 05/26/1993 | EP0543757A1 Plant for the reduction of iron ore in circulating fluidised bed |
| 05/26/1993 | EP0542885A1 Process for preheating iron-containing reactor feed prior to being treated in a fluidized bed reactor |
| 05/26/1993 | EP0542803A1 Process for controlling the product quality in the conversion of reactor feed into iron carbide |
| 05/13/1993 | WO1993008936A1 Method and device for removing one or more contaminations from a bulk material |
| 05/12/1993 | EP0540898A2 Method for the manufacture of single-phase, incongrously melting intermetallic phases |
| 05/12/1993 | EP0302111B1 Method and furnace for making iron-carbon intermediate products for steel production |
| 05/04/1993 | US5208004 Method for the recovery of zinc oxide |
| 04/29/1993 | DE4134793A1 Mfg. intermetallic phases with non-congruent m.pts. - by calcio:thermal redn. of homogeneous mixt. of alloy components with mean particle size up to 75 microns, followed by tempering |
| 04/28/1993 | CN2130821Y Reduction pot charging apparatus for obtaining magnesium by silicon heating process |
| 04/27/1993 | US5205980 Sublimer assembly |
| 04/23/1993 | CA2081032A1 Method for producin single-phase incongruently melting intermetallic phases |
| 04/21/1993 | CN1071205A Process for preparation of rareearth ferro-silicon alloy by carbon thermal reduction to ore bearing O,C and Ce |
| 04/21/1993 | CN1071203A Metal refining method |
| 04/13/1993 | US5201940 Pre-heating and pre-reduction of a metal oxide |
| 04/06/1993 | US5199974 Flash smelting under reducing conditions; volatilization; slag formation |
| 04/06/1993 | US5199973 Method of disposing of medical sharps |
| 03/31/1993 | EP0534243A1 A method and apparatus for treating gases and particulate solids in a fluid bed |
| 03/31/1993 | EP0534020A1 Molten metal producing and refining method |
| 03/26/1993 | CA2079202A1 A method and apparatus for treating gases and perticulate solide in a fluid bed |
| 03/23/1993 | US5196047 Method of treatment of zinc-containing by-products and waste materials |
| 03/09/1993 | CA1314149C Methods of recovering arsenic values from waste |
| 02/23/1993 | US5188795 Battery recycling, reduced heat loss |
| 01/26/1993 | US5181955 Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace |
| 01/07/1993 | EP0328613B1 Metallurgical controlling method |
| 01/05/1993 | US5175943 Solids feed system and method for feeding fluidized beds |
| 12/29/1992 | US5174975 Low temperature pyrolysis |
| 12/23/1992 | WO1992022779A1 Solids feed system and method for feeding fluidized beds |
| 12/23/1992 | CA2110512A1 Solids feed system and method for feeding fluidized beds |
| 12/16/1992 | EP0517786A1 Production of synthetic rutile |
| 12/16/1992 | CN1067071A Technology and apparatus for industrial pnduction of nonferrous metals (sr, ba, etc, ) by vacuum thermal reduction process |
| 12/09/1992 | EP0516763A1 Deoxidation of a refractory metal |
| 11/18/1992 | CN1019136B Method for prodn. of ferrocarbon intermediate product for use in steel prodn. |
| 11/12/1992 | WO1992019623A1 Highly reactive form of copper and reagents thereof |
| 11/11/1992 | CN1019025B Method and apparatus for reduction of material containing metal oxide |
| 10/28/1992 | CN1018847B Niobite fe alloy preparing from niobite fe ore |
| 10/21/1992 | EP0509447A2 Thermite process for producing a metal or alloy |
| 10/14/1992 | EP0508501A1 Method of reducing non-ferrous metal oxides in slags |
| 10/07/1992 | CN1065099A Process of reducing nonferrous metal oxides in slags |
| 10/06/1992 | US5152830 Loading mixture of metal oxide powders and reducing agent in layers having controlled concentrations so as to control amounts of heat generated in exothermic reaction, efficiency |
| 10/06/1992 | CA1308262C Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous |
| 09/30/1992 | CN1064896A Method for smelting ferrosilicon |
| 09/23/1992 | CN1064707A Process for smelting high-gade si-ca-ba alloy in mineral fuel furnace |
| 09/22/1992 | US5149062 Prereduction furnace of a smelting reduction facility of iron ore |
| 09/17/1992 | CA2062184A1 Process of reducing nonferrous metal oxides in slags |
| 09/15/1992 | US5147451 Method for refining reactive and refractory metals |
| 09/09/1992 | EP0502339A1 Method for recovering metal contents of metallurgic waste precipitates or waste dusts by suspension smelting |
| 09/08/1992 | CA1307167C Flame treatment |
| 09/03/1992 | WO1992014851A1 Process for the production of metallic titanium and intermediates useful in the processing of ilmenite and related minerals |
| 08/26/1992 | EP0499956A1 Method and apparatus for heating and smelting pulverous solids and for volatilizing the volatile ingredients thereof in a suspension smelting furnace |
| 08/25/1992 | CA1306614C Producing volatile metals |
| 08/19/1992 | EP0499134A2 Fluxless solder |
| 08/18/1992 | US5139704 Fluxless solder |
| 08/11/1992 | US5137566 Process for preheating iron-containing reactor feed prior to being treated in a fluidized bed reactor |
| 07/21/1992 | US5131942 Particle size of reducing agent is correlated with gas flow velocity, fluidized beds, smelting |
| 07/21/1992 | US5131634 Sublimer-reactor system with weighing means |
| 07/14/1992 | US5130204 Nickel or iron from pyrolysis of the carbonyls |
| 07/14/1992 | CA1304943C Metal production process by reduction of metallic salts |
| 07/01/1992 | EP0492681A2 Metallothermic reduction of rare earth fluorides |
| 07/01/1992 | EP0492229A1 Method of extraction of metals from metal-containing raw materials |
| 07/01/1992 | EP0492002A1 Method for making a light metal-rare earth metal alloy |
| 06/30/1992 | US5125965 Method for maintaining fluidization in a fluidized bed reactor |
| 06/30/1992 | US5125964 Fluidized bed process for preparing tungsten powder |
| 06/30/1992 | US5125963 Metallurgical controlling method |
| 06/28/1992 | WO1992012264A1 Fluidized bed preliminary reducing furnace for raw material comprising oxide |
| 06/23/1992 | CA1303862C Method for working-up waste products containing valuable metals |
| 06/23/1992 | CA1303861C Metallurgical controlling method |
| 06/22/1992 | WO1992011499A1 Method and apparatus for controlling temperature in a circulating fluidized bed reactor |
| 06/22/1992 | CA2098577A1 Method and apparatus for controlling temperature in a circulating fluidized bed reactor |
| 06/17/1992 | DE4039504A1 Extracting metals from metal contg. raw materials |
| 06/10/1992 | EP0489591A1 Method for treatment of zinc-containing by-products and waste materials |
| 06/10/1992 | EP0489083A1 Smelting of metallurgical waste materials containing iron compounds and toxic elements. |
| 06/10/1992 | CN1016971B Method and apparatus for carrying out thermochemical process |
| 06/10/1992 | CN1016968B Process for feeding heat energy into molten metal bath |
| 06/07/1992 | CA2055668A1 Method for treatment of zinc-containing by-products and waste materials |
| 05/29/1992 | WO1992008815A1 Direct sulphidization fuming of zinc |
| 05/29/1992 | CA2095436A1 Direct sulphidization fuming of zinc |
| 05/20/1992 | CN1016708B Processing method for sulfide containing lead material |
| 05/19/1992 | CA1300896C Metallothermic reduction of rare earth chlorides |
| 04/22/1992 | CN1060500A Improved process for separating ilmenite |
| 04/01/1992 | EP0478322A1 Pyrometallurgical process for treating a feed material |
| 04/01/1992 | CN1059856A Fluidized bed process for preparing tungsten powder |
| 03/24/1992 | CA1297681C Direct smelting process for sulfide ores |
| 03/18/1992 | EP0475308A1 Method for treating nickel magnesium silicate ores |
| 03/18/1992 | EP0474956A1 Metallic vapor condenser capable of circulating a liquid metal |
| 03/18/1992 | EP0474704A1 Pre-heating and pre-reduction of metal oxide ore using high temperature off-gases |
| 03/13/1992 | CA2050945A1 Method for treating nickel magnesium silicate ores |
| 03/10/1992 | US5094686 Process for producing copper fine powder |
| 03/03/1992 | US5092921 Method for producing high-purity metallic chromium |
| 03/03/1992 | US5092564 Column for treating particulate materials with a gas |
| 03/01/1992 | WO1992004121A1 Process for separating ilmenite |
| 02/25/1992 | US5090996 Reducing calcined dolomite or magnesium oxide with ferro-silicon; heating with plasma or arc |
| 02/23/1992 | WO1992003581A1 Method for maintaining fluidization in a fluidized bed reactor |
| 02/23/1992 | CA2090119A1 Method for maintaining fluidization in a fluidized bed reactor |