| Patents for C22B 7 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof (11,341) |
|---|
| 04/14/1998 | US5738694 A compressed briquet for waste recycling comprising polymeric binder, carbon for reduction, kaolin filler and calcium carbonate hardener |
| 04/14/1998 | CA2105373C Method for the disposal of nickel-cadmium or nickel-hydride cells |
| 04/09/1998 | WO1997049641A3 Method and system for high-temperature waste treatment |
| 04/08/1998 | EP0834583A1 Wet process for the entraction of zinc and other metal values form chlorine and fluorine bearing raw materials such as Waelz oxides |
| 04/08/1998 | EP0833961A1 Ammoniacal metal solution recycling process |
| 04/08/1998 | CN1037982C Process for recovery of titanium from complex matrix comprising titanium nitride |
| 04/07/1998 | US5736053 Contacting liquid hydrocarbon with activated carbon which has been activated with gas comprising specified amount of water vapor |
| 04/07/1998 | US5735935 Reducing splashing and spattering |
| 04/07/1998 | US5735933 Crushing metal containing wastes to specific particle size, and separating, heating in a vacuum furnace, volatizing non-metals then metal component at higher temperature, metal is recovred and condensed, non-metal is removed by adsorbtion |
| 04/01/1998 | EP0832988A1 Method of treating zinc-containing substance and apparatus therefor |
| 04/01/1998 | EP0832041A1 Sodium tungstate preparation process |
| 04/01/1998 | EP0831984A1 Process for recovering iron from iron-rich material |
| 04/01/1998 | EP0764137B1 Method for extracting metals from metal-containing materials by pyrohydrolysis |
| 04/01/1998 | CN1037916C Method for recovering silver from wast liquor containing silver chloride |
| 04/01/1998 | CN1037914C Method for separating actinide elements from concentrated high-radioactive waste liquid |
| 03/31/1998 | US5733356 Method and device for processing free-flowing materials |
| 03/31/1998 | CA2135360C Method of leaching mineral values from oil sand tailings |
| 03/26/1998 | WO1998012359A1 Process for reclaiming incineration waste |
| 03/26/1998 | CA2237510A1 Process for reclaiming incineration waste |
| 03/25/1998 | EP0830463A1 Dross press fume extraction system |
| 03/25/1998 | CN1177014A Method for obtg. gold, silver and other noble metals from anode and contg. high concn. arsenic and lead |
| 03/24/1998 | US5730874 Extraction of metals using supercritical fluid and chelate forming legand |
| 03/19/1998 | WO1998011263A1 Method for separating tin and if necessary copper from scrap melting, specially tinplate melting or metallic melting |
| 03/19/1998 | WO1998010838A1 Apparatus for dissociating bulk waste in a molten metal bath |
| 03/18/1998 | EP0829550A1 Method of processing incineration residues in a multi-stage metal bath converter |
| 03/18/1998 | EP0828859A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 03/18/1998 | EP0828858A2 Metal waste processing facility |
| 03/17/1998 | US5728854 Method for separating iron from nickel and/or cadmium from a waste containing the same |
| 03/17/1998 | US5728639 Recovery of spent catalyst |
| 03/17/1998 | US5728197 Reclamation process for tungsten carbide/cobalt using acid digestion |
| 03/17/1998 | US5728193 Process for recovering metals from iron oxide bearing masses |
| 03/17/1998 | CA2215262A1 Process for working up combustion residues |
| 03/10/1998 | US5725632 Method for processing and utilizing metalliferous presipitates from the gas cleaning phase in thermal waste treatment |
| 03/04/1998 | EP0734355B1 Recovery of spent catalyst |
| 03/04/1998 | CN1175111A Method for recoverying copper from winding |
| 02/25/1998 | EP0824967A1 Reprocessing method for salvaged metallic materials |
| 02/18/1998 | CN1173545A Method and appts. for regenerating material from wasted materials in ironworks |
| 02/12/1998 | WO1998005439A1 Method of thermal decomposition of scrap motor vehicle and apparatus therefor |
| 02/12/1998 | DE19631793A1 Recovery of steel or iron blasting residue |
| 02/11/1998 | EP0687349B1 Method and apparatus for combustion of steel plant wastes |
| 02/11/1998 | CN1172859A Method for recovery of cobalt salt with wbolt sulfonate slag of electrolytic zinc plant |
| 02/05/1998 | WO1998004878A1 Method of melting oxidic slags and combustion residues, and device for carrying out this method |
| 02/05/1998 | WO1998004755A1 'waelz' method for processing of zinc containing materials in pelletized form |
| 02/05/1998 | WO1998004753A1 Fluid extraction of metals or metalloids |
| 02/05/1998 | WO1998004752A1 Hydrometallurgical zinc recovery process and apparatus |
| 02/05/1998 | WO1998004750A1 Method for separating titanium and/or vanadium from pig iron |
| 02/05/1998 | CA2261967A1 Fluid extraction of metals or metalloids |
| 02/05/1998 | CA2232610A1 Method of arrangement for melting oxidic slags and combustion residues |
| 02/04/1998 | EP0821743A1 Cooling system for press head |
| 02/03/1998 | US5714129 Oxidation of lithium electrode with aqueous protonic solvent for recovery; battery waste recycling |
| 01/29/1998 | WO1998003830A1 A melting unit for voluminous manufacture |
| 01/29/1998 | WO1998003229A1 Method for accelerated chemical and/or biological remediation and method of using an apparatus therefor |
| 01/28/1998 | EP0821071A1 Vacuum treatment of dust exhausted from iron and steel melting furnace for recovery of lead and zinc |
| 01/28/1998 | EP0820532A1 Process for the separation of copper and heavy metals from incinerated garbage residue and slag |
| 01/28/1998 | EP0820531A1 Reuse of metallurgical fines |
| 01/28/1998 | CN1171451A Method for recovering aluminium foil from waste aluminium foil package and apparatus thereof |
| 01/21/1998 | EP0819771A1 Reclamation process for tungsten carbide/cobalt using oxidation and acid digestion |
| 01/21/1998 | EP0819183A1 Treatment of fly ash |
| 01/21/1998 | CN1171171A Process for recovery of metals from used nickel-metal hydride accumulators |
| 01/21/1998 | CN1171170A Process for recovery of metals from used nickel-metal hydride accumulators |
| 01/20/1998 | US5709730 Calcium chloride, hydrochloric acid mixture with flue dust, oxidation of metals, mixing with hematite, complexing, filtration and recovering metal oxides such as zinc oxides, circulation and demetallization |
| 01/15/1998 | WO1998001866A1 Methods of decontaminating substrates with in situ generated cyanides |
| 01/15/1998 | WO1998001590A1 Process for reusing dusts from metallurgical processes, such as steel converter dusts containing zinc |
| 01/14/1998 | EP0818547A1 Recovery of metals values from air bag inflators |
| 01/14/1998 | EP0784710A4 Amorphous metal alloy and method of producing same |
| 01/14/1998 | CN1170046A Process for extracting aluminum and iron compound from self-burned coal gangue |
| 01/13/1998 | US5707585 Liquid metal pump and apparatus for use in cleaning and recycling solder |
| 01/07/1998 | EP0815272A1 Method of producing pig iron, alloys of ferrous metal and/or nonferrous metal with synthetic blast furnace slag from residues of incinerated waste and steelworks slag |
| 01/07/1998 | EP0815269A2 Improved hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
| 01/07/1998 | EP0815266A1 Method of processing burnt rubbish residues |
| 01/06/1998 | US5705123 Metal chip reclamation system |
| 01/06/1998 | US5704823 Tumbling with metal powder |
| 01/02/1998 | DE19625539A1 Thermal processing of substances in plasma furnace |
| 12/31/1997 | WO1997049835A1 Process and apparatus for production of useful iron product from industrial waste streams |
| 12/31/1997 | WO1997049641A2 Method and system for high-temperature waste treatment |
| 12/31/1997 | WO1997049637A1 Beneficiation of furnace dust for the recovery of chemical and metal values |
| 12/31/1997 | CN1169135A Method of utilizing dusts produced during the reduction of iron ore |
| 12/31/1997 | CN1168926A Method for recovering valuable elements from rare-earth and ferrous alloy |
| 12/31/1997 | CA2259423A1 Beneficiation of furnace dust for the recovery of chemical and metal values |
| 12/31/1997 | CA2259325A1 Process and apparatus for production of useful iron product from industrial waste streams |
| 12/31/1997 | CA2257544A1 Method and system for high-temperature waste treatment |
| 12/30/1997 | US5702500 Integrated process for the recovery of metals and fused alumina from spent catalysts |
| 12/29/1997 | EP0813614A1 Method for recovering heavy metals from acid and ammonia solutions |
| 12/24/1997 | WO1997048826A1 Method of recovering metals from slags |
| 12/24/1997 | CA2258147A1 Method of recovering metals from slags |
| 12/23/1997 | US5700425 Device for the pretreatment of electronic scrap |
| 12/18/1997 | WO1997047776A1 Dross compression apparatus and method utilizing ribs on collector and head |
| 12/18/1997 | WO1997047773A1 Device for producing sponge iron |
| 12/18/1997 | DE19625127A1 Vorrichtung zur Erzeugung von Eisenschwamm Device for producing sponge iron |
| 12/18/1997 | CA2255076A1 Device for producing sponge iron |
| 12/17/1997 | EP0652978B1 Novel method for recovering metals from materials containing refractory and/or transition metals |
| 12/17/1997 | CN1167833A Integrated recovery of Pb and Sn as valuable metal from chloride slag |
| 12/17/1997 | CN1167832A Method for recovering reusable elements from rare earth-nickel alloy |
| 12/16/1997 | US5698759 Treatment of polyvinylchloride |
| 12/11/1997 | WO1997046723A1 Process for producing a metallurgical raw material from oil containing heavy metals |
| 12/11/1997 | WO1997046722A1 Recovery of iron products from waste material streams |
| 12/11/1997 | WO1997046721A1 Process for recovering heavy metals from the residue of a plant for the partial oxidation of oil |
| 12/11/1997 | CA2257910A1 Recovery of iron products from waste material streams |
| 12/09/1997 | US5695543 Method for metal reduction of steel waste products |
| 12/04/1997 | WO1997045564A1 Fluidized bed treatment of eaf dust |