| Patents for C22B 7 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof (11,341) |
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| 05/19/1999 | EP0915994A1 "waelz" method for processing of zinc containing materials in pelletized form |
| 05/19/1999 | EP0915993A1 Fluidized bed treatment of eaf dust |
| 05/14/1999 | WO1999022870A1 Method for upgrading iron ore utilizing multiple magnetic separators |
| 05/11/1999 | US5902375 Method of melting tinned iron scrap |
| 05/11/1999 | US5901910 Metal recovery from salt cake and other compositions |
| 05/06/1999 | EP0913221A1 Conditioning of in basic media electrodeposited metal powder |
| 05/06/1999 | EP0912771A1 Process for producing a metallurgical raw material from oil containing heavy metals |
| 05/06/1999 | DE19748144A1 Method for producing basis elements out of metal chips for melting processes |
| 05/05/1999 | CN1216070A Method and device for direct reduction of ore fines |
| 05/05/1999 | CN1043251C Method and apparatus of treating dusts contg. oxides |
| 05/05/1999 | CN1043250C Method and digesting furnace for recovering platinum and aluminium from waste aluminium based catalyst |
| 05/05/1999 | CN1043244C Method for production of pig iron or steel and cement clinker from slag |
| 05/04/1999 | US5900039 Process for obtaining fluid light metal from a dispersed mixture |
| 05/04/1999 | CA2075794C Treatment of wastes |
| 04/29/1999 | WO1999020803A1 Polymeric combinations used as copper and precious metal heap leaching agglomeration aids |
| 04/29/1999 | DE19746852A1 Ultrasonic treatment of zinc-containing steelworks filter dusts prior to magnetic separation |
| 04/29/1999 | CA2274672A1 Polymeric combinations used as copper and precious metal heap leaching agglomeration aids |
| 04/28/1999 | EP0910678A1 Process for reusing dusts from metallurgical processes, such as steel converter dusts containing zinc |
| 04/28/1999 | EP0648255B1 Treatment of waste |
| 04/27/1999 | US5897685 Recycling of CdTe photovoltaic waste |
| 04/27/1999 | CA2096484C Thermal process of used relinings from hall-heroult electrolysis bath |
| 04/21/1999 | EP0909335A1 Treatment of fly ash/apc residues including lead salt recovery |
| 04/21/1999 | CN1214740A Method and apparatus for treating ironmaking dust |
| 04/20/1999 | CA2052849C Alkaline leaching of galvanized steel scrap |
| 04/15/1999 | WO1999018248A1 Recovery of lead from flue dusts |
| 04/15/1999 | WO1999018041A1 Recovery of the components of group iii-v material aqueous wastes |
| 04/15/1999 | CA2304064A1 Recovery of lead from flue dusts |
| 04/13/1999 | CA2156824C Method and apparatus for combustion of steel plant wastes |
| 04/08/1999 | WO1999016917A1 Pyrometallurgical method and device for separating zinc and/or cadmium from lead in metallurgical residues |
| 04/07/1999 | EP0906249A2 Method and system for high-temperature waste treatment |
| 04/07/1999 | EP0784710B1 Method of producing amorphous metal alloys |
| 04/01/1999 | WO1999015283A1 Process for cleaning mercury-contaminated soils |
| 04/01/1999 | WO1999015277A1 Process for recycling old cars |
| 04/01/1999 | DE19842658A1 Scrap battery processing involves metal recovery |
| 04/01/1999 | DE19742214A1 Verfahren zur Verwertung von Altautos Process for the recovery of scrap cars |
| 04/01/1999 | CA2301729A1 Process for cleaning mercury-contaminated soils |
| 03/31/1999 | EP0905261A1 Carbon steel or low alloyed steel with improved machinability and process for manufacturing said steel |
| 03/31/1999 | EP0904420A1 Metal containing compound reduction and melting process |
| 03/31/1999 | EP0904415A1 Device for producing sponge iron |
| 03/30/1999 | US5887805 Compositions of metallic and non-metallic components of wiring assemblies and printed wiring boards |
| 03/30/1999 | CA1340476C System for recovery of salvageable ferrous and non-ferrous metal components from incinerated waste materials |
| 03/25/1999 | WO1999014381A1 Steel slag and ferriferous material reprocessing process useful to produce pig iron and environmentally compatible slags |
| 03/25/1999 | CA2271489A1 Steel slag and ferriferous material reprocessing process useful to produce pig iron and environmentally compatible slags |
| 03/24/1999 | CN1211629A Treatment method for high zinc containing iron dust |
| 03/24/1999 | CN1211538A Overall recovery method for wet-process zinc smelting clear liquid dregs |
| 03/24/1999 | CN1042652C Method of preparation of metallic phase from light metal and non-metallic dispersed mixture |
| 03/23/1999 | US5885328 Method of agglomerating oil-containing steel mill waste |
| 03/23/1999 | US5885326 Process for removing technetium from iron and other metals |
| 03/18/1999 | WO1999012622A1 Method and arrangement for treatment of gases |
| 03/18/1999 | WO1998058090A3 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 03/17/1999 | CN1210896A Method for treating lead-containing soot |
| 03/16/1999 | US5882811 Method for recovering lithium cell materials |
| 03/16/1999 | US5882580 Dross presses |
| 03/16/1999 | US5882375 From basic steel slags containing chromium and/or vanadium |
| 03/10/1999 | EP0900855A1 Production of titanium slag |
| 03/09/1999 | US5879829 Treatment chamber coupled with preparation chambers capable of maintaining air tightness; protective devices |
| 03/09/1999 | US5879430 Hydrating calcium oxide in steel-making slag to produce calcium hydroxide while discharging condnesed hot water |
| 03/04/1999 | WO1999010625A1 Placer gold mining method, placer gold mining boat used in this method, placer gold digging and separating method and system therefor, and placer gold separating method and system therefor |
| 03/04/1999 | CA2269928A1 Placer gold mining method, placer gold mining boat used in this method, placer gold digging and separating method and system therefor, and placer gold separating method and systemtherefor |
| 03/03/1999 | EP0899347A1 Press head for a dross press |
| 03/02/1999 | US5876483 Method and furnace for disposal of steel-making waste, and operating method of the furnace |
| 02/25/1999 | WO1999009224A1 Method and equipment for processing iron- or oil-containing metallurgical waste |
| 02/25/1999 | CA2298504A1 Method and equipment for processing iron- or oil-containing metallurgical waste |
| 02/24/1999 | EP0897429A1 Method and device for direct reduction of ore fines |
| 02/24/1999 | CN1209110A Inorganic binder compositions, prodn. and use thereof |
| 02/18/1999 | WO1999007905A1 Method of disintegrating sintered hard metal carbide bodies and recovering hard metal carbide powder |
| 02/16/1999 | US5871561 Treating dusts containing zinc and/or lead in the form of oxides to a retrievable form of their respective pure metals, using reducing agents in a heat treatment furnace |
| 02/10/1999 | CN1042058C Apparatus for using hazardous waste to form non-hazardous aggregate |
| 02/04/1999 | WO1999005329A1 Method for operating a sintering plant, and sintering plant |
| 02/04/1999 | WO1999004913A1 Method and arrangement for destruction of hazardous waste |
| 02/04/1999 | DE19733434A1 Preparation of filter dust material |
| 02/04/1999 | CA2301667A1 Method for operating a sintering plant, as well as sintering plant |
| 02/04/1999 | CA2296588A1 Method and arrangement for destruction of hazardous waste |
| 02/03/1999 | EP0894151A1 Recovery of metal from dross |
| 02/03/1999 | CN1207141A Method of processing finely divided material incorporating metal based constituents |
| 02/03/1999 | CN1207060A Lightweight compact waste treatment furnace |
| 02/02/1999 | US5865872 Method of recovering metals and producing a secondary slag from base metal smelter slag |
| 02/02/1999 | CA2143254C Method for the removal of thallium |
| 01/28/1999 | WO1999003609A1 A process for separating a contaminating substance from a material contaminated by said substance |
| 01/28/1999 | WO1999003600A1 Apparatus for separation of organic and inorganic constituents from matrices |
| 01/27/1999 | EP0893511A2 Improvements in or relating to dross presses |
| 01/27/1999 | CN1041845C Method for treatment of residues from organochlorosilane and/or chlorosilane synthesis |
| 01/26/1999 | US5863491 Outer housing enclosing a light-irradiated, reactor having transparent walls and containing porous strata of photocatalyst implanted with metal nucleation seeds of same metal to be recovered |
| 01/20/1999 | EP0891298A1 Method for recovering sodium from alkaline industrial waste |
| 01/20/1999 | EP0781174A4 Methods of decontaminating soils containing hazardous metals |
| 01/20/1999 | EP0781173A4 Method of decontaminating nuclear waste-containing soil |
| 01/20/1999 | EP0770149B1 Process for producing hydraulic binders and/or alloys, e.g. ferrochromium or ferrovanadium |
| 01/20/1999 | CN1041754C Method and appts. for pre-processing mixture containing metal |
| 01/19/1999 | US5861091 Process for electrochemically dissolving a metal such as zinc or tin |
| 01/13/1999 | EP0830463B1 Dross press fume extraction system |
| 01/13/1999 | EP0821743B1 Cooling system for press head |
| 01/13/1999 | EP0789784B1 Process for decomposing and recovering the metal components from superalloys |
| 01/12/1999 | US5858061 Process for the recovery of metals from used nickel/metal hydride storage batteries |
| 01/07/1999 | WO1999000327A1 Treatment of aluminum dross |
| 01/07/1999 | EP0889141A1 Zinc oxide-containing waste processing method |
| 01/07/1999 | EP0806059B1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 01/07/1999 | DE19727880A1 Valuable material recovery from nickel/metal hydride cells |
| 01/07/1999 | DE19727276A1 Removal of nickel from fatty acid residues e.g. from catalysed hydrogenation of fats |
| 01/05/1999 | US5855645 Production of more concentrated iron product from industrial waste materials streams |
| 01/05/1999 | US5855644 Method for recovering aluminium from materials containing metallic aluminium |