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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11/30/2000 | DE19924707A1 Verfahren zum Recycling von Kathodenmassen gebrauchter Lithiumbatterien Method for recycling cathode materials used lithium batteries |
11/30/2000 | DE19924531A1 Process and assembly to decontaminate soil from metals using single reactor vessel, imparting electrical current to suspension of solids to while mixing or agitating, adding a regeneratable extraction agent,etc. |
11/30/2000 | DE19921485A1 Cyclone process and assembly to recover light metal swarf minimises the risks to persons associated with swarf recovery |
11/29/2000 | EP1056146A1 Procedure for the recycling of cathode masses of used lithium batteries |
11/29/2000 | EP1055647A2 Process for processing stainless steel slags |
11/28/2000 | US6153155 Coking residue to produce liquid, gaseous, and coke product; separating liquid; dividing coke into two fractions; combusting fractions to form flue gas and flue dust; leaching dust with solution of ammonia and ammonium carbonate |
11/28/2000 | US6152983 Method of producing reduced iron pellets formed by reducing iron oxide pellets containing dusts (including sludges) containing zn ingredients formed in iron works |
11/28/2000 | US6152050 Lightweight compact waste treatment furnace |
11/28/2000 | CA2309773A1 Process for recycling negative-electrode materials from spent lithium batteries |
11/28/2000 | CA2040316C Process for recovering valuable metals from a dust containing zinc |
11/27/2000 | CA2273067A1 Process for recovering value metals from iron-containing alloys |
11/23/2000 | WO2000070103A1 Method and equipment for smelting non-ferrous metal sulphides in a suspension smelting furnace in order to produce matte of a high non-ferrous metal content and disposable slag |
11/23/2000 | WO2000070101A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
11/23/2000 | CA2372809A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
11/22/2000 | EP0815272B1 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 |
11/21/2000 | US6149861 Methods for manufacturing R-Fe-B type magnet raw material powder and R-Fe-B type magnet |
11/16/2000 | WO2000068440A1 Method and device for induction-heating and melting metal oxides-containing powder and granular material |
11/16/2000 | DE19920868A1 Separating ceramic exhaust gas catalysts contained in exhaust gas converters from converter housing comprises crushing catalysts in housing and removing |
11/15/2000 | EP1051527A1 High efficiency recovery process and apparatus for the pyrolysis treatment and halogenation of multi-element waste |
11/14/2000 | US6146437 Metal containing compound reduction and melting process |
11/14/2000 | US6145244 Methods for enhancing phytoextraction of contaminants from porous media using electrokinetic phenomena |
11/09/2000 | WO2000066796A1 Method for treating metal-containing waste by pyrometallurgy |
11/09/2000 | WO2000066286A1 Recovery of heavy metals in waste treatment |
11/08/2000 | CN1272946A Feedstock powder for R-Fe-B magnet and process for producing R-Fe-B magnet |
11/07/2000 | CA2186826C Method of treating zinc-containing substance and apparatus therefor |
11/02/2000 | WO2000065111A1 Oxidative pressure leach recovery of precious metals using halide ions |
11/02/2000 | WO2000065108A1 Method for processing steel slags |
11/02/2000 | WO2000065106A1 Method of producing slurry-coated feed stock to be used for a direct reduction process |
11/02/2000 | EP1049190A1 Method and system for recovering valuable metal from waste storage battery |
11/02/2000 | EP1047797A1 Method for recycling iron bearing sludges in a steelmaking operation |
11/02/2000 | EP1047501A1 Apparatus and method for handling mercury containing lamps |
10/31/2000 | US6138833 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 |
10/31/2000 | CA2092049C Process for the recovery of rhodium from residues of carbonylation reactions |
10/24/2000 | US6136263 Dross press with rocking press head |
10/24/2000 | US6136262 Dross processing system |
10/24/2000 | US6136066 Method of recycling iron-bearing waste material back into a basic oxygen furnace |
10/24/2000 | US6136065 In a wide range of particle size, the reducing agent being hydrogen placed in a fluidized bed gutter with a plurality of sequentially arranged chambers |
10/24/2000 | US6136064 Supplying metal chips to charging tube, forming a column within tube extending through a box-shaped structure into a pool of molten metal; as chips at bottom of column melt, more are added to top, forcing bottom chips into molten metal |
10/24/2000 | US6136063 Process for separating hazardous metals from waste materials during vitrification |
10/24/2000 | US6136059 Feeding said dusts to a coreless induction furnace, having a reduction section partially filled with a turbulent bath of molten metal or alloy to reduce zinc and iron oxides in dusts, forming zinc vapors above bath and oxidizing zinc in vapors |
10/18/2000 | CN1270235A Process for treating low-grade anode mud |
10/17/2000 | US6132621 Method of selectively removing zinc from acid effluents |
10/17/2000 | US6132488 Process of treating waste containing zinc oxide |
10/11/2000 | EP1042842A1 Recycling of galvanic cells |
10/11/2000 | EP1042518A1 Oxidising elutriation of contaminated sludge containing iron with separation of zinc and lead |
10/10/2000 | US6129779 Recovering cadmium and tellurium from a cadmium telluride solar cell by crushing the cell, dissolving in acid solution, separating from solid phase, precipitating, dispersing the precipitation sludge in alkaline solution |
10/04/2000 | EP1041659A1 Method for crushing cell |
10/04/2000 | EP1039985A1 Method of removing a metallic coating layer from scrap metal pieces |
10/04/2000 | CN1268580A Noble metal smelting slag wet metallurgical process |
10/04/2000 | CN1268579A New process for treating electrolytic anode mud |
10/04/2000 | CN1057131C Fluidized bed for treating dsut from arc furnace |
10/03/2000 | US6126719 Recovery of group III element component from group III-V waste materials |
10/03/2000 | US6126714 Revert comprising mixture of steelmaking sludge and slag of low moisture content, given mesh size; blend prepared from hot slag having temperature below the molten liquid state and wet sludge; for recycling back to steelmaking |
10/03/2000 | CA2008046C Process for the concentration of dust in a cupola furnace with metal particles |
09/27/2000 | CN1056886C Method of processing finely divided material incorporating metal based constituents |
09/27/2000 | CN1056885C Method and apparatus for renewable resources from wasted materials in iron works |
09/21/2000 | DE19910603A1 Filter dusts, especially from melting of electroslag remelting and steelworks slags and submerged arc welding powders, are treated by melting prior to disposal |
09/19/2000 | US6120927 Dissolving the cathodic active material into mineral acid, salt forming, adding an alkaline material, drying to solification, dissolving the solid into a non-aqueous solvent, separating lithium salt |
09/19/2000 | US6120577 Separating and recovering iron, zinc and lead from steel plant waste oxides, comprising mixing waste oxides and sludge which contains iron zinc and lead, adding coke particles, briquetting the mixture, firing to reduce iron oxide to iron |
09/14/2000 | WO2000053539A1 Method for treating stainless steel refining slag |
09/14/2000 | DE19911168A1 Verfahren und Anordnung zur Behandlung von chloridhaltigem Staub Method and apparatus for treatment of chloride-containing dust |
09/14/2000 | CA2331182A1 Method for the treatment of slag resulting from the refining of stainless steel |
09/13/2000 | EP1035224A1 Process and installation for treating chloride containing dust from sinter band exhaust in connection with blast furnace top gas treatment |
09/13/2000 | EP1034014A1 A process for separation of heavy metals and halogen from waste material or residue |
09/12/2000 | US6117207 Process for recovering metals and other chemical components from spent catalysts |
09/06/2000 | CN1265428A Zinc oxide producing method from slag of zinc white furnace |
08/31/2000 | WO2000050650A1 Filter-press type electrochemical cell |
08/31/2000 | WO2000050649A2 Method and apparatus for removing undesirable metals from iron-containing materials |
08/30/2000 | EP1031633A1 Electrochemical cell of the filter press type for the lixiviation of slurries containing valuable metals |
08/30/2000 | CN1265160A Fluid extraction of metals of metalloids |
08/30/2000 | CN1055878C Method and device for treating composite elements |
08/29/2000 | US6110434 Recovering magnesium aluminum spinel and nonmetal product from aluminum dross, digestion and filtration |
08/29/2000 | US6110433 Process for the recovery of metals from used nickel/metal/rare earth hydride storage batteries |
08/29/2000 | US6110377 Placing rh.sup.+ type cation exchange resin in alkaline waste to complex insoluble sodium; separating resin charged with sodium and treating with lime and water; separating concentrated soda solution an using as digestion liquor |
08/23/2000 | EP1029093A1 Method for reprocessing steel slags and ferriferous materials |
08/23/2000 | EP1029092A1 Method for producing directly-reduced iron, liquid pig iron and steel |
08/23/2000 | CN1055731C Device and method for recovery of cadmium and nickel |
08/22/2000 | US6106587 Process for separating tin as well as, if required, copper from scrap melts, in particular, tinplate melts or metallic melts |
08/22/2000 | CA2270850C Metal recovery from skimmed slag |
08/16/2000 | CN1263565A Method for operating sintering plant and sintering plant |
08/16/2000 | CN1055549C Method for recoverying silver from deposited silver mud of waste sensitive material |
08/15/2000 | US6102982 Method for recovering zinc oxide from dust |
08/15/2000 | CA2174563C Recovery of steel plant revert materials through cementitious agglomeration |
08/10/2000 | DE19902010A1 Verfahren zur Aufbereitung von Asche aus Müllverbrennungsanlagen und von mineralischen Rückständen durch Entsalzung und künstlichen Alterung mittels elektrodynamischer Unter-Wasser-Prozesse und Anlage zur Durchführung des Verfahrens Method of treating ash from incinerators and mineral residues by desalination and artificial aging using electrodynamic underwater processes and system for implementing the method |
08/09/2000 | EP1026706A1 FEEDSTOCK POWDER FOR R-Fe-B MAGNET AND PROCESS FOR PRODUCING R-Fe-B MAGNET |
08/09/2000 | EP0909335B1 Treatment of fly ash/apc residues including lead salt recovery |
08/09/2000 | CN1262733A Ash melting furnace and ash melting method thereof |
08/08/2000 | US6100487 Chemical treatment of aluminum alloys to enable alloy separation |
08/03/2000 | WO2000045090A1 Gasification melting furnace for wastes and gasification melting method |
08/03/2000 | WO2000044948A1 Aluminum scrap melting process and system |
08/03/2000 | WO2000044947A1 Method for producing liquid pig iron |
08/02/2000 | EP1024206A1 Apparatus and method for recovering metal from dross |
08/01/2000 | US6096260 Cooling system for dross pressing head using sand |
08/01/2000 | US6096110 Filling; flowing through upper and lower tapping holes; semi-continuous process; pyrometallurgy |
08/01/2000 | US6096109 Chemical component recovery from ligated-metals |
07/27/2000 | WO2000043557A1 Method for processing ashes of incineration plants by desalination and artificial ageing by means of underwater high-voltage discharge |
07/26/2000 | EP0958385A4 Method of agglomerating oil-containing steel mill waste |
07/26/2000 | CN1054888C Method for recovering metal and chemical values |
07/25/2000 | US6092665 Beneficiation of saline minerals |
07/20/2000 | WO2000042229A2 Processing of uranium materials by fluorination and dissociation of uranium hexafluoride in plasma separator |