| 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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| 12/04/1997 | WO1997045561A1 Method of agglomerating oil-containing steel mill waste |
| 12/04/1997 | DE19622153A1 Verfahren zur Erzeugung eines metallurgischen Rohstoffs A process for producing a metallurgical raw material |
| 12/04/1997 | DE19622150A1 Verfahren zur Rückgewinnung von Schwermetallen aus dem Rückstand einer Anlage zur partiellen Oxidation von Öl Process for the recovery of heavy metals from the residue of a plant for the partial oxidation of oil |
| 12/04/1997 | CA2256726A1 Fluidized bed treatment of eaf dust |
| 12/04/1997 | CA2255956A1 Method of agglomerating oil-containing steel mill waste |
| 12/03/1997 | EP0625216B1 Process for remediation of lead-contaminated soil and waste battery casings |
| 12/03/1997 | CN2269402Y Flue ash, waste materials and adsorptive pitch aluminium oxide boiling baking device for aluminium electrolysis |
| 12/03/1997 | CN1166862A Method for recovering metal and chemical values |
| 12/03/1997 | CN1166800A Method of recovering metal materials from gas generator for air bag |
| 11/27/1997 | WO1997044500A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/27/1997 | WO1997044499A1 Ferric fluoborate/organic extractant hydrometallurgical process for recovering metals |
| 11/27/1997 | CA2253644A1 Treatment of fly ash/apc residues including lead salt recovery |
| 11/27/1997 | CA2252849A1 Ferric fluoborate/organic extractant hydrometallurgical process for recovering metals |
| 11/26/1997 | EP0808378A1 Process for processing waste or fractions thereof, especially light car shredder fractions |
| 11/26/1997 | CN1165866A Pb cleaning and reclaiming method from waste storage battery |
| 11/20/1997 | DE19720420A1 Metal production from metal oxide particles |
| 11/20/1997 | DE19643834C1 Direct electrolytic refining of used copper@ cable scrap |
| 11/19/1997 | EP0807188A1 Hydrometallurgical processing of flue dust |
| 11/18/1997 | US5688470 Apparatus for recovery of non-ferrous metals from scrap and dross |
| 11/12/1997 | EP0806059A1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 11/12/1997 | EP0805786A1 Method of utilizing dusts produced during the reduction of iron ore |
| 11/11/1997 | US5685244 Recovering vanadium-iron alloy from fly ash, molten slag layer |
| 11/06/1997 | WO1997041269A1 Process for the recovery of aluminium and energy from used packages of the 'tetrabrick' type and oven for implementing such process |
| 11/06/1997 | DE19711764A1 Recycling and recovering metallic components of composites |
| 11/05/1997 | EP0728221B1 Process for combined decoating and melting of aluminum scrap contaminated with organics |
| 11/04/1997 | US5683488 Method for producing an iron feedstock from industrial furnace waste streams |
| 10/30/1997 | WO1997040197A1 Metal containing compound reduction and melting process |
| 10/29/1997 | EP0802884A1 Recovery of chemical values from industrial wastes |
| 10/29/1997 | EP0619764B1 Process for removing heavy metals from soils |
| 10/29/1997 | CN1163315A Method and device for extracting liquid light metal from dispersed mixture |
| 10/23/1997 | WO1997039155A1 Recovery of metal from dross |
| 10/23/1997 | WO1997038771A1 Process for making shaped copper articles |
| 10/21/1997 | US5678775 Apparatus and systems that separate and isolate precious and semi-precious metals from electronic circuit boards |
| 10/15/1997 | EP0801137A1 Process for recovering copper from insulated copper wire windings |
| 10/15/1997 | EP0801136A1 Process for reducing oxidic slags or refuse incinerator ashes on a bath of molten iron alloy |
| 10/15/1997 | EP0800710A1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 10/14/1997 | US5678231 Purification by sequestering the hazardous metal with ammonium cyanide formed by mixing ammonia solution with a refrigerant fluorohydrocarbons |
| 10/09/1997 | WO1997037048A1 Process for separating sulphide-containing materials using hydrogen peroxide |
| 10/09/1997 | WO1997036823A1 Method for recovering sodium from alkaline industrial waste |
| 10/07/1997 | US5673900 Reclamation of metal from scrap |
| 10/02/1997 | WO1997036012A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 10/02/1997 | DE19613746A1 Verfahren zur Auftrennung sulfidhaltiger Restprodukte des Bergbaus und der Metallverarbeitung A process for separating sulphide waste products of mining and metal processing |
| 10/02/1997 | DE19612094A1 Directly recycling aluminium@ content of engine blocks |
| 10/02/1997 | CA2223132A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 09/24/1997 | CN1160423A Amorphous metal alloy and method of producing same |
| 09/24/1997 | CN1160365A Method of decontaminating nuclear waste-contg. soil |
| 09/23/1997 | US5669957 Recovering aluminum |
| 09/18/1997 | WO1997033703A1 Treatment apparatus, treatment system and treatment method |
| 09/17/1997 | EP0795036A1 Method for producing iron feedstock |
| 09/17/1997 | EP0751831B1 Method and device for treating composite elements |
| 09/16/1997 | US5667556 Method of reprocessing zinc- and iron oxide-containing residual material |
| 09/16/1997 | US5667555 Method for the removal of calcium by products during the production of an iron feedstock |
| 09/16/1997 | US5667553 Methods for recycling electric arc furnace dust |
| 09/16/1997 | US5667156 Process for the separation and isolation of precious and semi-precious metals from electronic circuit boards |
| 09/12/1997 | WO1997022124A3 Process for recycling contaminated metal parts |
| 09/10/1997 | CN2262036Y Device for extracting bismuth, removing arsonium and deacidifying from anode mud gold-metallurgy waste liquid |
| 09/10/1997 | CN1158905A Extraction of gold, silver and valued metals from arsenic-and copper-bearing anode sludge |
| 09/10/1997 | CN1158904A Recovering method of platinum and lead in anode sludge from electrolytic hydrogen peroxide solution production |
| 09/04/1997 | WO1997032048A1 Method and apparatus for treating ironmaking dust |
| 09/04/1997 | WO1997020643A3 Apparatus and method for waste recycling and conversion |
| 09/03/1997 | EP0792939A1 Method of melting tinned iron scrap |
| 08/28/1997 | DE19606954A1 Conveying sinter material occurring during rolling |
| 08/27/1997 | EP0764042A4 Fluid extraction |
| 08/26/1997 | US5660806 Deleading by leaching, dissolving in hydrochloric acid or sulfuric acid and a salt of alkali metal, alkaline earth metal or ammonium, recovering from liquid phase |
| 08/21/1997 | WO1997030182A1 Zinc oxide-containing waste processing method |
| 08/21/1997 | WO1997017307A3 Method for preparing hardened granules from a particulate material |
| 08/21/1997 | DE19605532A1 Small dross heating and compaction unit |
| 08/20/1997 | EP0790322A1 Method for recovering reusable elements from rare earth-nickel alloy scrap |
| 08/20/1997 | EP0790321A1 Method for recovering reusable elements from rare earth-iron alloy scrap containing cobalt |
| 08/20/1997 | EP0789784A1 Process for decomposing and recovering the metal components from superalloys |
| 08/20/1997 | CN1157584A Method of decontaminating soils containing hazardous metals |
| 08/20/1997 | CN1157330A Aluminum electrolytic flue dust, dirty material, adsorbent asphalt aluminum oxide boiling roasting device |
| 08/14/1997 | WO1997029214A1 Process for the separation of copper and heavy metals from incinerated garbage residue and slag |
| 08/14/1997 | WO1997022975A3 Process for using contaminated metal parts |
| 08/14/1997 | CA2216714A1 Process for the separation of copper and heavy metals from incinerated garbage residue and slag |
| 08/13/1997 | CN1157010A Process for producing hydraulic binders and/or alloys, E.G. ferrochromium or ferrovanadium |
| 08/13/1997 | CN1156762A Process for directly producing cadmium sulfate from zinc cadmium slag |
| 08/07/1997 | WO1997028287A1 Method for processing a powdery material, and apparatus therefor |
| 08/06/1997 | EP0787810A1 Aluminium remelting furnace, in particular for melting aluminium scrap to be recycled |
| 08/06/1997 | EP0787039A1 Process for reprocessing and utilizing boron trifluoride catalyst residues |
| 08/06/1997 | CN1156483A Method and apparatus for used aluminum can recycling |
| 08/06/1997 | CN1156420A Method and device for separating harder from less harder material |
| 08/05/1997 | CA2061088C Method for recovering metal contents of metallurgic waste precipitates or waste dusts by suspension smelting |
| 07/31/1997 | WO1997027339A1 Method of processing burnt rubbish residues |
| 07/31/1997 | WO1997027143A1 Production of high purity silicon metal, aluminium, their alloys, silicon carbide and aluminium oxide from alkali alkaline earth alumino silicates |
| 07/31/1997 | CA2216156A1 A process for processing waste incineration residues |
| 07/30/1997 | EP0786530A1 Process and apparatus for the recovery of liquid light metal from a dispersed mixture |
| 07/30/1997 | CA2196112A1 Process and device for obtaining fluid light metal from a dispersed mixture |
| 07/29/1997 | US5651807 Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis |
| 07/29/1997 | US5651465 Beneficiation of saline minerals |
| 07/24/1997 | WO1997026382A1 Press head and dross pot for dross processing system |
| 07/24/1997 | WO1997026381A1 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 |
| 07/24/1997 | WO1997026380A1 Chemical component recovery from ligated-metals |
| 07/24/1997 | CA2214079A1 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 |
| 07/23/1997 | EP0785028A1 Apparatus for solidifying and processing a molten material |
| 07/23/1997 | EP0784710A1 Amorphous metal alloy and method of producing same |
| 07/17/1997 | WO1997025447A1 Method for recovering heavy metals from acid and ammonia solutions |
| 07/16/1997 | EP0784035A1 Method for processing particulate materials into hardened granules |
| 07/16/1997 | EP0783593A1 Method for recovering metal and chemical values |
| 07/16/1997 | EP0783592A1 Bonded medium |