| 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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| 11/21/2001 | CN1075119C Operating method for sintering equipment and sintering equipment |
| 11/20/2001 | US6319482 Treatment of fly ASH/APC residues including lead salt recovery |
| 11/20/2001 | CA2061548C Direct reduction process in rotary hearth furnace |
| 11/15/2001 | WO2001086027A1 Process for extracting copper or iron |
| 11/15/2001 | WO2001086011A1 A method and an apparatus for recovery of metals |
| 11/15/2001 | WO2001085307A1 Process for the purification of flue gas |
| 11/15/2001 | WO2001085298A1 Method and device for separating by sedimentation physically detectable particles from a particle flow |
| 11/15/2001 | US20010039854 Adding at least one peroxy oxidant, the oxidant oxidizes the sulphite contained in the gold sulfite complex to sulfate and reduces the gold contained in the complex to its metallic form |
| 11/15/2001 | US20010039709 Preparation of metal feedstock from wasted metal products |
| 11/15/2001 | DE10023373A1 Heat treatment apparatus used for pyrolyzing electronic scrap comprises a container as a vacuum chamber with a suction device arranged in the upper region and immersed in a crucible containing a liquid heat carrier |
| 11/14/2001 | EP1153149A1 Method for processing ashes of incineration plants by desalination and artificial ageing by means of underwater high-voltage discharge |
| 11/14/2001 | EP1153148A1 Method for producing liquid pig iron |
| 11/14/2001 | EP0815269B1 Improved hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
| 11/08/2001 | WO2001083844A2 Method for depositing metal and metal oxide films and patterned films |
| 11/08/2001 | WO2001083834A1 Precious metal recovery from organics-precious metal compositions with supercritical water reactant |
| 11/06/2001 | US6311522 Process for casting and forming slag products |
| 10/31/2001 | EP1149927A1 Method and equipment for the processing of a gold bath |
| 10/31/2001 | EP1149926A2 Recycling of grinding sludge in the form of briquettes |
| 10/30/2001 | US6310264 Method for processing material comprising aluminum and plastic |
| 10/30/2001 | US6309531 Process for extracting copper or iron |
| 10/25/2001 | WO2001079124A1 Method and device for treating secondary scale slurries |
| 10/24/2001 | EP1148295A1 Gasification melting furnace for wastes and gasification melting method |
| 10/24/2001 | CN1319143A Method for producing directly reduced metal in multi-tiered furnace |
| 10/23/2001 | US6306641 Method for accelerated remediation of contaminated material |
| 10/23/2001 | US6306356 Slurrying natural bitumen ash with water, adding oxidizing agent and sulfuric acid; agitating, heating, separating and removing solid phase of undissolved ash and insoluble vanadium values from liquid phase containing nickel and magnesium |
| 10/18/2001 | WO2001077396A1 Process and apparatus for continuous vacuum purification of molten metal |
| 10/18/2001 | WO2001034856A8 Recovery of metal values from aqueous solutions and slurries |
| 10/18/2001 | US20010030251 Method for separating metallic material from waste printed circuit boards, and dry distillation apparatus used for waste treatment |
| 10/18/2001 | DE10021779C1 Separation of gold particles generated by engraving from water comprises feeding it over beam-shaped barrier so that particles of greater specific weight settle out in front of barrier and are periodically separated off |
| 10/18/2001 | CA2372385A1 Process and apparatus for continuous vacuum purification of molten metal |
| 10/17/2001 | EP1146304A1 Double chamber furnace for immersion smelting of contaminated aluminium scrap |
| 10/17/2001 | EP1146022A2 Process for processing stainless steel slags |
| 10/17/2001 | EP1144701A2 Processing of uranium materials by fluorination and dissociation of uranium hexafluoride in plasma separator |
| 10/17/2001 | EP1144696A1 Method of producing molten iron in duplex furnaces |
| 10/16/2001 | US6302938 Reduced pellets |
| 10/11/2001 | WO2000042229A3 Processing of uranium materials by fluorination and dissociation of uranium hexafluoride in plasma separator |
| 10/11/2001 | US20010028136 Two-chamber furnace for the melt- contact smelting of contaminated aluminum scrap |
| 10/11/2001 | EP1144701A3 Processing of uranium materials by fluorination and dissociation of uranium hexafluoride in plasma separator |
| 10/10/2001 | EP1140382A1 Method for accelerated remediation & method of using an apparatus therefor |
| 10/10/2001 | EP1007746B1 Method for operating a sintering plant |
| 10/10/2001 | CN1072730C Recovery process of waste cobalt-molybdenum catalyst |
| 10/04/2001 | WO2000039514A9 Method and device for melting rare earth magnet scrap and primary molten alloy of rare earth magnet |
| 10/04/2001 | US20010025548 Forming adduct of rhodium chloride and metal halide; carbonylation to rhodium halogen carbonyl; oxidation to hydrate; reduction to rhodium sponge |
| 10/04/2001 | EP1138791A1 Process for the recovery and refining of rhodium |
| 10/04/2001 | EP1137818A1 Method for the heat treatment of residues containing heavy metals |
| 10/04/2001 | EP0904420B1 Metal containing compound reduction and melting process |
| 10/04/2001 | EP0874915B1 Method for separating titanium and vanadium from pig iron |
| 10/04/2001 | EP0852692B1 Method of melting oxidic slags and combustion residues, and device for carrying out this method |
| 09/27/2001 | WO2001071049A2 Tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross and method of operation |
| 09/27/2001 | DE10014711A1 Gas-heated dual-chamber furnace for immersion melting of contaminated aluminum scrap, includes pyrolysis chamber in which hot flue gases purify charge |
| 09/26/2001 | EP1136141A1 Treating apparatus, treating method and method of treating soil |
| 09/26/2001 | EP1135660A1 Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross |
| 09/26/2001 | EP1135537A1 Treating niobium and/or tantalum containing raw materials |
| 09/26/2001 | CN1071714C Sodium tungstate preparation process |
| 09/25/2001 | US6293993 Forming mixture of waste with finely divided solid reducing agent and binder; compacting as agglomerates; adding to reactor containing bath of liquid copper or brass metal in which zinc and copper oxides are reduced; casting new brass |
| 09/25/2001 | US6293209 Process for treating a material containing metal and organic matter, including metal separation |
| 09/24/2001 | CA2342096A1 Two-chamber furnace for the melt-contact smelting of contaminated aluminum scrap |
| 09/20/2001 | DE19538608C2 Verfahren zum Erschmelzen von Schrott Method for melting scrap |
| 09/20/2001 | DE10024239C1 Process for galvanically treating workpieces used e.g. in the production of circuit boards comprises contacting the workpieces with a palladium colloidal solution, and recovering the solution after use |
| 09/18/2001 | US6290835 Treatment of waste from printed circuit board production for recovery of tin and environmentally safe disposal |
| 09/18/2001 | US6290747 Conversion of impure silver halide to ultra-pure silver metal |
| 09/13/2001 | WO2001066810A1 Method of sintering and sinter bed composition |
| 09/13/2001 | DE10011001A1 Device for separating of metal chips from fluids comprises transporting container divided into two chambers, one above other, by intermediate base with several holes, and with dimensioning of holes smaller than that of metal chips |
| 09/12/2001 | EP1131137A1 Method for the non-leachable immobilisation of molybdenum compounds in a slag |
| 09/12/2001 | EP0991785B1 A method and a device for recovering metals comprising dissolving , concentrating and electrowinning means with rotatable cathode |
| 09/12/2001 | CN1312863A Process for heat-treating residues containing heavy metals and iron oxides |
| 09/12/2001 | CN1312862A Method for heat-treating residues containing heavy metal and iron oxide |
| 09/12/2001 | CN1312393A Conversion of non-pure silver halide into super-pure metal silver |
| 09/12/2001 | CN1312392A Arsenic smoke dust treating method |
| 09/12/2001 | CN1312391A Method of recovering metal from metal-containing sludge |
| 09/11/2001 | US6287363 Reducing gas is separated in scrubber in form of sludges, characterized in that sludges are dehydrated and used as starting materials for production of cement |
| 09/07/2001 | WO2001065192A1 Multistage furnace with gas evacuation |
| 09/06/2001 | DE10010316A1 Apparatus for dissolving zinc in basic aqueous solution, useful in industrial galvanization, includes iron oxide electrically connected to zinc, without external current |
| 09/05/2001 | EP1129227A1 Device and method for removing dross from a vessel of molten zinc with enhanced zinc yield |
| 09/05/2001 | CN1311825A Blast furnace with narrowed top section and method of using |
| 09/05/2001 | CN1311341A Treating method and process for lead anode mud |
| 09/05/2001 | CN1070536C Method for recovering reusable elements from rate earth-nickel alloy |
| 09/04/2001 | US6284214 Low or no slag molten metal processing of coke containing vanadium and sulfur |
| 09/04/2001 | US6284190 Apparatus for recovering metal from dross |
| 08/30/2001 | WO2001062991A1 Method for upgrading steel plant dust |
| 08/29/2001 | CN1310768A Method for producing zinc using IS shaft furnace and corresponding IS shaft furnace |
| 08/29/2001 | CN1310242A Zn-Co sludge treating method |
| 08/23/2001 | WO2001061061A1 Method and a plant for removing mercury contamination from metal with a reducing liquid |
| 08/22/2001 | EP1126039A1 Method and apparatus for reductively processing the liquid slag and the baghouse dust of the electric arc furnace |
| 08/22/2001 | EP1125647A1 Method and device for decomposing circuit member by water in supercritical fluid state |
| 08/22/2001 | CN2443971Y Apparatus of working up positive mud for electrolysing gold |
| 08/22/2001 | CN1069928C Method for treating material contg. metal and organic metter, including metal separation |
| 08/16/2001 | DE10002368A1 NE-Metall Sortierung Non-ferrous metal sorting |
| 08/15/2001 | CN1308137A 直接熔炼工艺 Direct smelting process |
| 08/14/2001 | US6273932 Continuous metal melting process |
| 08/14/2001 | CA2219288C Apparatus and method for oxygen lancing in a multiple hearth furnace |
| 08/09/2001 | WO2001056684A1 A method for treatment of flue gas cleaning products |
| 08/09/2001 | US20010011788 Refractory head with optional spike for dross press |
| 08/08/2001 | EP1122323A1 Method for recovering platinum from platinum-containing coatings on gas turbine engine components |
| 08/08/2001 | EP1122319A1 Process of recycling mill scale of alloyed steel in an electric arc furnace into a ferro-silicon product |
| 08/08/2001 | EP1121179A1 Ammonia removal from fly ash |
| 08/08/2001 | EP0904415B1 Device for producing sponge iron |
| 08/02/2001 | WO2001055461A1 Method for removing chrome and/or nickel from liquid slags |
| 08/02/2001 | WO2001055460A1 Method for reprocessing dust or dust mixtures |
| 08/02/2001 | WO2001055459A1 Method for treating slags or slag mixtures on an iron bath |