| 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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| 06/20/2006 | US7063792 Treating aqueous medium containing solution of zirconium and hafnium compound with ligand which complexes with one of the metals; passing over filtration membrane which allows complexes to pass but retains metals not complexed |
| 06/15/2006 | US20060123952 Process and apparatus for extracting zinc |
| 06/14/2006 | EP1669467A1 Process of removal of heavy metals from incinerated sewage sludge |
| 06/14/2006 | CN1788094A Recovery of metal values from cermet |
| 06/14/2006 | CN1786223A Production method of regenerating metal alloy from imperfect fine powder using nickel aluminium alloy catalyst |
| 06/14/2006 | CN1786222A Grinding recovery treatment technology of waste electron wiring board and its equipment |
| 06/14/2006 | CN1786216A Reducing gas recovery device of mechanical vertical kiln high temperature dry detoxin chromium slag |
| 06/14/2006 | CN1259437C Smelting technique for blowing fine coal into blast furnace in stead of part of coke |
| 06/14/2006 | CN1259436C A method for precipitation of silica in connection with zinc ore leaching |
| 06/08/2006 | WO2006058508A1 Method of extraction of europium(iii) and/or yttrium(iii) ions from concentrate of luminophore dust or sludge |
| 06/07/2006 | EP1664726A1 Conditioning system and method for use in the measurement of mercury in gaseous emissions |
| 06/07/2006 | EP1663456A1 Metal oxide processing methods and systems |
| 06/07/2006 | EP1567680A4 Method and apparatus for optimized mixing in a common hearth in plasma furnace |
| 06/07/2006 | EP1465746B1 Solder-dross mixture separation method and apparatus |
| 06/07/2006 | CN1258427C Device for separating welding flux and oxide from melting dreg |
| 06/01/2006 | WO2006041281A3 Method and device for recovering stainless steel from steel slags under dry conditions |
| 05/31/2006 | EP1660689A1 Method and apparatus for processing metalline sludge |
| 05/31/2006 | EP1660577A1 Treatment of aqueous compositions containing contaminants |
| 05/31/2006 | EP1495149B1 Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 05/31/2006 | CN1780711A Solder-dross mixture separation method and apparatus |
| 05/31/2006 | CN1780691A Gas cleaning process and equipment therefor |
| 05/30/2006 | US7052660 Controlling oxidation; slurry containing ammonium metavanadate; decomposition of ammonium sulfate to ammonia |
| 05/24/2006 | EP1658467A1 Electric reducing furnace |
| 05/24/2006 | DE19520651B4 Verfahren zur Verwertung und Entsorgung von Klär- bzw. Wasserwerksschlämmen Process for the recovery and disposal of sewage or Wasserwerksschlämmen |
| 05/24/2006 | CN1775964A Mechanical shaft kiln high-temperature dry detoxified chromium slag water-quenching appuratus |
| 05/24/2006 | CN1257292C Method for recovering nickel and aluminum from waste aluminum based nickel-containing catalyst |
| 05/23/2006 | US7048857 Using oxidizer |
| 05/23/2006 | US7048774 Recovery of metal values from cermet |
| 05/18/2006 | WO2006051061A1 Preparation of tio2 powders from a waste liquid containing titanium compounds |
| 05/18/2006 | US20060101996 Gas cleaning process and equipment therefor |
| 05/17/2006 | EP1656463A1 Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions |
| 05/17/2006 | EP1656461A2 USE OF TIO sb 2 /sb RESIDUES FROM A SULFATE METHOD |
| 05/17/2006 | EP1251920A4 Method and apparatus for metal removal by ion exchange |
| 05/17/2006 | EP0990847B1 Ash melting furnace and ash melting method thereof |
| 05/11/2006 | US20060096419 Method for reduction treatment of metal oxide or ironmaking waste and method for concentration and recovery zinc and/or lead |
| 05/10/2006 | EP1654392A1 Utilization of lead shavings in abrasion mills for the production of lead oxide |
| 05/10/2006 | CN1255560C Process for recovering rare earth from neodymium-ion-boron waste materials |
| 05/09/2006 | US7041270 Air pollution control |
| 05/09/2006 | US7041152 forming a slurry of a sulfuric acid solution in an oxygen-containing atmosphere in an agitated multiple-compartment pressure leaching vessel; separating the solution from the product slurry to yield a residue; and recovering a (especially precious) metal value from the residue. |
| 05/04/2006 | WO2006013568A3 Recovery of precious metals from electronic scrap by hydrometallurgical processing |
| 05/04/2006 | DE10207202B9 Verfahren zur metallurgischen Verwertung von metallhaltigen Schlämmen und Stäuben A method for metallurgical recovery of metal-containing dusts and sludges |
| 05/03/2006 | EP1652971A1 Oxide electrolyzing electrolysis device |
| 05/03/2006 | EP1652620A2 Grinding sludge compacting machine |
| 05/02/2006 | US7038180 Isostat for treating materials and method of removing ceramic material from metal articles using the same |
| 05/02/2006 | US7037357 Dissolving; alkaline treatment in brine solutions, then acidification |
| 04/27/2006 | WO2005118890A3 Recovery of steel from contaminated scrap |
| 04/26/2006 | EP1648840A1 Reducing agent for the soluble chromate content of cement and methods for the production thereof |
| 04/26/2006 | EP1372860B1 Facility and method for treating muck containing metal |
| 04/26/2006 | CN1763232A Apparatus for recovering Hg from Hg-containing sludge and waste water |
| 04/25/2006 | US7033548 Denitrification, desulfurization; pollution control |
| 04/20/2006 | WO2006041394A1 A method and use of an apparatus for recovery of metals or metal compounds |
| 04/20/2006 | WO2006041281A2 Method and device for recovering stainless steel from steel slags under dry conditions |
| 04/20/2006 | US20060084572 forming an overcoat layer of zro2 on the surface of the catalyst layer, allowing the catalyst body ( Pt on cordierite) having the overcoat layer to stand under the condition to result in a difference in expansibility or contractility exhibited by the overcoat layer from that exhibited by the carrier |
| 04/20/2006 | CA2580648A1 A method and use of an apparatus for recovery of metals or metal compounds |
| 04/19/2006 | CN1252294C Waste magnesium alloy vacuum recovering process and equipment |
| 04/19/2006 | CN1252021C Method for recovery of metals by incineration of metal contg. basic ion exchange resin |
| 04/13/2006 | WO2006037777A1 Treatment of iron-and-steel plant sludge in a multistage furnace |
| 04/12/2006 | EP1645645A1 Treatment of steel plant sludges in a multi-stage furnace |
| 04/12/2006 | CN1757771A Method of stripping cyanide and valuable metal on resin with ultrasonic |
| 04/12/2006 | CN1250754C Method for direct metal making by microwave energy |
| 04/06/2006 | WO2006035570A1 Apparatus and method for heating treatment |
| 04/05/2006 | EP1641948A1 Recovery of non-ferrous metals from zinc residues |
| 04/05/2006 | CN1754971A Batchwise working-up recycling materials in a rotatable reactor |
| 03/30/2006 | US20060065071 reducing oxidic iron particles of the slag with the dissolved carbon of the reducing agent in iron melt to form metallic iron and CO, then oxidizing CO to CO2; forming environmentally compatible cement clinker substitute; low cost, avoid dust loss, lower CO2 emission |
| 03/29/2006 | EP1640464A1 Aluminium dross cooling method and installation |
| 03/29/2006 | EP1640463A1 Process for the dissolution of copper metal |
| 03/29/2006 | EP1465709A4 Molten metal reactor utilizing molten metal flow for feed material and reaction product entrapment |
| 03/29/2006 | CN1752237A Method for enriching vanadium in vanadium containing steel slag |
| 03/29/2006 | CN1752236A Dearsenic technique for high-arsenic complicated solution |
| 03/29/2006 | CN1247804C Process for recovering palladium from TDI hydro genation waste palladium carbon catalyst |
| 03/29/2006 | CN1247803C Method of producing metallized briquette |
| 03/28/2006 | US7017478 Grinding sludge compacting machine |
| 03/23/2006 | US20060060508 Mixed metal catalyst comprising a combustible binder, its process of preparation and use |
| 03/22/2006 | EP1636393A1 Process for recovery of palladium from spent catalyst |
| 03/22/2006 | CN1749420A Process for extracting metal cobalt from waste hard alloy |
| 03/21/2006 | US7014832 Simultaneous recovery of potassium chloride and KCL enriched edible salt |
| 03/21/2006 | US7014678 Use of oil-charged mill-scale in shaft furnaces and converters after chemical binding and pelleting thereof |
| 03/21/2006 | CA2150591C Caustic sludge treatment process |
| 03/15/2006 | EP1633679A1 Extraction process for reactive metal oxides |
| 03/14/2006 | US7011800 Reducing nitrogen oxides directly to nitrogen by feeding superheated steam and oxygen to fluidized a bed of wastes including alkali metal compound; oxidation of organics used to evaporate water and use as the principal reducing agent |
| 03/14/2006 | CA2334277C Method for processing steel slags |
| 03/10/2006 | CA2518846A1 Process for the dissolution of copper metal |
| 03/09/2006 | WO2006024507A1 Process for recycling fuel cell components containing precious metals |
| 03/09/2006 | DE102004041997A1 Verfahren zum Recycling von Brennstoffzellenkomponenten Method for recycling fuel cell components |
| 03/08/2006 | CN1743473A Si-Mn waste residue treatment method and its use |
| 03/07/2006 | US7010248 Toner recycling method and toner recycling system |
| 03/07/2006 | US7008606 Process for passivating sulfidic iron-containing rock |
| 03/01/2006 | EP1630238A1 Method of recovering metallic elements from slag containing metaloxides |
| 03/01/2006 | EP1629130A1 Mechanical separation of volatile metals at high temperatures |
| 03/01/2006 | EP1629128A1 Method for the reduction of harmful substances in the waste gases of a burner-fired melting furnace |
| 03/01/2006 | EP1628913A2 A process for recovering phosphorus from phosphorus production sludge |
| 03/01/2006 | CN1742102A An improved smelting process for the production of iron |
| 03/01/2006 | CN1740351A Method for recovering rear-earth element |
| 02/23/2006 | US20060037889 Apparatus for reclamation of precious metals from circuit board scrap |
| 02/23/2006 | US20060037436 smelting iron-containing source material, having iron present as oxide and/or a partially metalized state, in reactor containing molten bath having a slag phase, utilizing injection of fuel/reductant and oxygen-containing gas into slag to generate heating and reducing conditions |
| 02/23/2006 | US20060037435 Method for treating slag |
| 02/22/2006 | EP1627085A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 02/22/2006 | EP1627084A1 Method for utilizing slag |
| 02/22/2006 | CN1243113C Zinc leaching-out slag treating process with vertical retort zinc refining residue as fuel |
| 02/15/2006 | EP1626098A2 Process of dissolving zinc in alkaline brines |