| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
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| 04/14/1987 | CA1220381A1 Feeder for pulverized coal |
| 04/14/1987 | CA1220343A1 Method of minimizing reduction disintegration of iron ores and iron ore agglomerates to be used as blast furnace burden |
| 04/08/1987 | EP0217237A2 Chlorination of iron-containing metaliferous materials |
| 04/08/1987 | EP0217139A1 Working up zinc- and lead-bearing residual materials obtained in steel making industryin view of a further metallurgical treatment |
| 04/07/1987 | US4655829 Metal recovery process |
| 04/07/1987 | CA1220091A1 Furnace by combustion of pulverized coal |
| 03/31/1987 | US4654088 Decoating of aluminum scrap |
| 03/26/1987 | WO1987001731A1 Production of elements and compounds by deserpentinization of ultramafic rock |
| 03/25/1987 | EP0215210A1 Process and installation for preparing binder-free hot-briquets |
| 03/24/1987 | US4652434 Chlorination of ores containing alkali or alkaline earth values |
| 03/24/1987 | CA1219442A1 Method and apparatus for preparing scrap metal charges for smelting furnaces |
| 03/18/1987 | EP0214268A1 A method for working-up waste products containing valuable metals. |
| 03/17/1987 | CA1219129A1 Balling process of a mineral or its concentrate with peat |
| 03/12/1987 | DE3630697A1 Process for producing clinkers from sludges containing heavy metals |
| 03/10/1987 | US4648900 Suction sintering method and apparatus therefor |
| 03/10/1987 | CA1218961A1 Mineral separation |
| 02/24/1987 | US4645184 Apparatus for preparing binder-free hot-briquets |
| 02/12/1987 | WO1987000826A1 Chlorination of ores containing alkali or alkaline earth values |
| 02/11/1987 | CN86105313A Process and apparatus for preparing binderfree hot briquettes for smelting purposes |
| 02/10/1987 | US4642133 Removal of impurities using magnesium chloride |
| 01/31/1987 | CN85102378A Production of vanadium from atomized vanadium residue by calcination and water extraction in one run |
| 01/20/1987 | CA1216753A1 Method and apparatus for continuously manufacturing non-fired pellets |
| 01/15/1987 | WO1987000259A1 Process and apparatus for removing volatiles from metal |
| 01/13/1987 | US4636342 Method for continuously manufacturing non-fired pellets |
| 01/07/1987 | EP0207779A2 Direct reduction process using shaft furnace |
| 01/07/1987 | EP0207654A1 Method for continuously manufacturing fired pellets |
| 01/06/1987 | US4635273 Method and apparatus for the thermal production of metal carbides and metals |
| 12/30/1986 | EP0206008A2 Mixed binder systems for agglomerates |
| 12/23/1986 | CA1215791A1 Ore flotation with combined flotation agents |
| 12/10/1986 | EP0204355A1 Process for hard firing iron pellets on a travelling grate |
| 12/03/1986 | EP0203855A2 A process for agglomerating mineral ore concentrate utilizing emulsions of polymer |
| 12/03/1986 | EP0203854A2 An improved process for agglomerating ore concentrate utilizing emulsions of polymer binders or dry polymer binders |
| 12/03/1986 | CN85104327A Process for hard-burning iron ore briquets on a moving grate |
| 12/02/1986 | US4626279 Decomposition at low temperatures in the presence of oxygen |
| 12/02/1986 | CA1214649A1 Process for the chlorination of oxidic materials |
| 11/26/1986 | CN85104183A Process of drying sulfide ore by direct contact with hot drying gases |
| 11/26/1986 | CN85104051A Process of thermally treating lump or agglomerated materials on a moving grate |
| 11/25/1986 | US4624843 Recovery of chlorine |
| 11/25/1986 | US4624059 Method and plant for cooling pellets |
| 11/19/1986 | CN86101735A Metallurgical composites and processes |
| 11/18/1986 | US4622905 Furnacing |
| 11/12/1986 | CA1213734A Process for stabilizing unstable pellets of pulverulent mineral materials |
| 11/05/1986 | EP0199818A1 Agglomerate and a process for producing the same |
| 10/28/1986 | US4619815 Chlorination of iron-containing metaliferous material |
| 10/28/1986 | US4619814 Roasting, leaching |
| 10/22/1986 | EP0198302A1 Process for preparing fine ferrous discharge matter with alloying elements, e.g. chromium in its sixth oxidation state, particularly originating from filter dust and/or filter sludge from the steel, particularly from the electrosteel industry |
| 10/22/1986 | CN85103266A Method and plant for cooling pellets |
| 10/15/1986 | CN85103346A Process for direct reduction of briquets bound with high molecular substances |
| 10/14/1986 | CA1212549A1 Production of metal chlorides |
| 09/30/1986 | US4614752 Dissolving with solvents |
| 09/25/1986 | WO1986005521A1 Immobilised extractants |
| 09/24/1986 | EP0195650A2 Recovery of zinc from zinc-bearing sulphidic ores and concentrates by controlled oxidation roasting |
| 09/23/1986 | US4613363 Submerged arc furnace |
| 09/16/1986 | USRE32247 Process for the direct production of steel |
| 09/16/1986 | US4612171 Method for recovering metal values from materials containing copper and/or precious metals |
| 09/16/1986 | US4612041 Process for recovering valuable metals from an iron dust containing a higher content of zinc |
| 09/16/1986 | CA1211292A1 Method for separating nonferrous metals from iron- oxide-containing residues |
| 09/12/1986 | WO1986005211A1 A method for working-up waste products containing valuable metals |
| 09/09/1986 | US4610722 Process for metal recovery from steel plant dust |
| 09/03/1986 | EP0192807A2 Process for manufacturing active briquettes rich in carbon |
| 09/02/1986 | CA1210735A1 Method and apparatus for reclaiming storage battery components |
| 09/02/1986 | CA1210593A1 Process for the sulfatization of non-ferrous metal sulfides |
| 08/27/1986 | EP0192459A1 Recovery of base metal values from base metal and iron-bearing sulfide materials |
| 08/26/1986 | US4608083 Method for recovering the valuable metal content of contaminated copper raw material |
| 08/19/1986 | CA1209787A1 Process of drying sulfide ores in direct contact with hot drying gases |
| 08/12/1986 | US4605435 Recycling of steel plant dusts to steel furnaces |
| 07/23/1986 | EP0188305A2 A process for processing a moist metal or metal compounds containing composition comprising at least on solid product separated from gases evolved during the preparation of iron |
| 07/22/1986 | US4601750 Scrap melting system |
| 07/16/1986 | CN85100843A Process of melt-reduction for producing pig iron using coal-containing spheric agglomerates in shaft furnace |
| 07/16/1986 | CN85100109A Recovery of platinum via extracting waste catalysts |
| 07/01/1986 | US4597797 Composition of matter useful for agglomerating a metal-containing ore material |
| 07/01/1986 | US4597790 Method of producing unbaked agglomerates |
| 06/17/1986 | US4595574 Agglomerating carbonaceous substance and zinc compound, coating with calcium compound onto hearth layer in sintering apparatus, metallizing, vaporizing zinc in reducing atmosphere, oxidizing zinc vapor |
| 06/17/1986 | US4595573 Treating metal compound to be chlorinated in refractory material reactor, pressurizing, chlorinating with continuous stream of chlorine gas |
| 06/03/1986 | CA1205585A1 Dewatering mineral ore concentrates with polyethoxylated alkyl phenols |
| 05/27/1986 | US4591325 Apparatus for producing gas-permeable pressed articles |
| 05/13/1986 | CA1204274A1 Process of afterburning and purifying process exhaust gases |
| 05/10/1986 | CN85107209A Method of chemical seperation of low grade calc-phosphorous ore |
| 05/09/1986 | WO1986002668A1 Agglomerate and a process for producing the same |
| 04/29/1986 | US4585548 Grinding mineral with lyophilic surface, slurrying with carbon source and hydrocarbon liquid and separation |
| 04/29/1986 | US4585475 Utilization as coolant and oxidizer in steel refining |
| 04/15/1986 | US4582481 Process of drying sulfide ores in direct contact with hot drying gases |
| 04/15/1986 | CA1203083A1 Process for the recovery of non-ferrous metals from sulphide ores and concentrates |
| 04/09/1986 | EP0177471A1 A method for recovering the valuable metal content of contaminated copper raw material |
| 04/09/1986 | EP0177291A2 Recovery of gold from auriferous refractory iron-containing sulphidic ore |
| 03/25/1986 | US4578254 Process for the refining of sulfidic concentrates which contain arsenic, antimony and bismuth |
| 03/25/1986 | US4577838 Material processing apparatus |
| 03/25/1986 | CA1202184A1 Dead roast-oxide flash reduction process for copper concentrates |
| 03/19/1986 | EP0174676A1 Thermal treatment process of grains or agglomerates on a travelling grate |
| 03/19/1986 | EP0174641A2 A process for recovering valuable metals from an iron dust containing a higher content of zinc |
| 03/18/1986 | US4576637 From cheap raw materials |
| 03/18/1986 | US4576636 Process for beneficiating oxidic ores |
| 03/10/1986 | CN85105934A Technology and equipment of fluidized roasting by oxygen-poor reduction |
| 03/05/1986 | EP0173425A1 Process for the extraction of platinum group metals |
| 02/18/1986 | US4571264 Recovery of gold from refractory auriferous iron-containing sulphidic ore |
| 02/04/1986 | CA1200106A1 Process for the recovery of metals from the scrap from nickel-cadmium accumulators |
| 02/04/1986 | CA1200074A1 Process for production of metal calcines of low sulfur content |
| 01/29/1986 | CN85200549U Sintering ignition device with the utilization of low-heat-value gas as fule |
| 01/21/1986 | US4565583 High pressure water |
| 01/21/1986 | CA1199497A1 Method and apparatus for continuously manufacturing non-sintered pellet |