| 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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| 07/20/2000 | CA2359963A1 Improvements in and relating to processing materials |
| 07/19/2000 | EP1019554A1 Pyrometallurgical method and device for separating zinc and/or cadmium from lead in metallurgical residues |
| 07/19/2000 | CN1054550C Method and apparatus for separating magnesium or aluminium from molten slag or waste slag containing magnesium or aluminium |
| 07/18/2000 | US6089479 Method for treating waste printed circuit boards with molten mixture of inorganic salts |
| 07/12/2000 | EP1017511A1 Process for cleaning mercury-contaminated soils |
| 07/12/2000 | EP1017502A1 Process for recycling old cars |
| 07/12/2000 | EP0731851B1 Method of processing solid residues from waste-incineration plants and a device for carrying out the method |
| 07/12/2000 | CN1259408A Decomposition treatment method for cohesive magnet |
| 07/11/2000 | US6086361 Melt treatment apparatus |
| 07/11/2000 | CA2162052C Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis |
| 07/06/2000 | WO2000039514A1 Method and device for melting rare earth magnet scrap and primary molten alloy of rare earth magnet |
| 07/06/2000 | WO2000039351A1 Eaf dust treatment by pelletising and fluidised-bed reduction |
| 07/05/2000 | EP1016152A1 Lithium recovery and purification |
| 07/05/2000 | EP1015385A1 Treatment of aluminum dross |
| 07/05/2000 | EP1015210A1 Method for processing material comprising aluminium and plastic |
| 07/05/2000 | EP1015119A1 Metal recovery from salt cake and other compositions |
| 07/05/2000 | EP0808378B1 Process for processing waste or fractions thereof, especially light car shredder fractions |
| 07/05/2000 | CN1258754A Recovery process of waste cobalt-molybdenum catalyst |
| 07/05/2000 | CN1258753A Production of regenerated lead, red lead and lead nitrate with waste lead-acid accumulator |
| 07/05/2000 | CN1054214C Method for recovering silver from solid sensitive material |
| 07/04/2000 | US6083295 Method of processing finely divided material incorporating metal based constituents |
| 07/04/2000 | US6083294 Method of treating dust exhausted from melting furnace |
| 07/04/2000 | US6082641 Dross processing |
| 06/29/2000 | DE19859783A1 Disposal of used airbag gas generators uses a wet grinder with a halogenide dosing followed by a washer with added halogen solution and a regenerator to recirculate the halogen for an efficient and safe recycling |
| 06/27/2000 | US6080224 Method for processing waste containing metal contaminants using a reducing agent |
| 06/21/2000 | EP1010767A1 Preparation of metal feedstock from wasted metal products |
| 06/21/2000 | EP1009552A1 Method and arrangement for destruction of hazardous waste |
| 06/21/2000 | EP0915994B1 "waelz" method for processing of zinc containing materials in pelletized form |
| 06/20/2000 | US6077328 Process for reducing the dioxin and furan content in waste gases from furnaces, and use of the filter dusts produced thereby |
| 06/20/2000 | CA2198123C Sulphate agglomeration |
| 06/14/2000 | EP1009058A1 Method of treating lithium battery to recycle its materials |
| 06/14/2000 | EP1008395A2 Method for separating metallic material from waste printed circuit boards, and dry distilation apparatus used for waste treatment |
| 06/14/2000 | EP1007748A1 Method and equipment for processing iron- or oil-containing metallurgical waste |
| 06/14/2000 | EP1007746A1 Method for operating a sintering plant, and sintering plant |
| 06/13/2000 | US6074455 Aluminum scrap melting process and apparatus |
| 06/07/2000 | CA2290879A1 Procedure for treating a lithium cell battery in preparation for recycling its constituent materials |
| 06/02/2000 | WO2000031482A1 Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross |
| 06/02/2000 | WO2000031309A1 Method of recycling swarf into shot blasting material |
| 06/02/2000 | WO2000005421A8 Blast furnace with narrowed top section and method of using |
| 06/02/2000 | CA2351353A1 Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross |
| 05/30/2000 | US6068677 Method for processing waste or waste fractions, in particular car shredder light fractions |
| 05/25/2000 | WO2000029071A1 Method for the non-leachable immobilisation of molybdenum compounds in a slag |
| 05/25/2000 | WO2000017406A3 Method for extracting lead from lead-containing raw materials |
| 05/25/2000 | WO2000014763A8 Image display, method for disassembling the same, and method for recovering part |
| 05/25/2000 | CA2351391A1 Method for the non-leachable immobilisation of molybdenum compounds in a slag |
| 05/24/2000 | CN1253921A Agglomeration method of steel slag |
| 05/23/2000 | US6066229 Method of recycling disk recording medium and apparatus for recovering metal reflective film |
| 05/18/2000 | WO2000028094A1 Method for the heat treatment of residues containing heavy metals |
| 05/18/2000 | CA2345412A1 Method for the heat treatment of residues containing heavy metals |
| 05/17/2000 | CN1253595A Process and device for recovering raw materials from waste and residues |
| 05/17/2000 | CN1253185A Process for separating titanium component from titanium-contained slags |
| 05/16/2000 | US6063330 Press head and dross pot for dross processing system |
| 05/11/2000 | WO2000026420A1 Method of producing molten iron in duplex furnaces |
| 05/10/2000 | EP0999566A2 A method for decomposition and treatment of bond magnet |
| 05/09/2000 | US6059854 Process for processing waste incineration residues |
| 05/04/2000 | WO2000025382A1 Method and system for recovering valuable metal from waste storage battery |
| 05/04/2000 | WO2000024943A1 Treating niobium and/or tantalum containing raw materials |
| 05/04/2000 | DE19849385A1 Verfahren zur Verwertung unsortierter Altbatterien sowie Vorrichtung zur Durchführung dieses Verfahrens Process for the recovery of unsorted waste batteries and device for carrying out said method |
| 05/04/2000 | CA2356988A1 Treating niobium and/or tantalum containing raw materials |
| 05/03/2000 | EP0997963A1 Process for the utilization of unsorted batteries as well as apparatus for carrying out the method |
| 05/03/2000 | EP0891298B1 Method for recovering sodium from alkaline industrial waste |
| 05/03/2000 | EP0689614B1 Process for operating a cupola furnace while using briquettes as a slag-forming material |
| 04/25/2000 | US6054104 Method and apparatus for germanium reclamation from chemical vapor deposition |
| 04/25/2000 | US6053963 Method for treating rotary slag |
| 04/25/2000 | US6053958 Process for preparation of fertilizer containing slag |
| 04/25/2000 | US6053010 Apparatus for aging steel-making slag |
| 04/20/2000 | WO2000005421A9 Blast furnace with narrowed top section and method of using |
| 04/19/2000 | EP0994196A1 Method of solidifying steel-making slag and material produced by the method |
| 04/18/2000 | CA2176487C Process for making copper wire |
| 04/13/2000 | WO2000020651A1 Device and method for removing dross from a vessel of molten zinc with enhanced zinc yield |
| 04/13/2000 | WO2000020140A1 Method and device for decomposing circuit member by water in supercritical fluid state |
| 04/13/2000 | DE19846093A1 Metallic nickel is recovered from wastes, e.g. electroplating sludge, by dissolution as sulfate, precipitation as hydroxide, calcination to oxide and reduction with hydrogen |
| 04/13/2000 | CA2346425A1 Device and method for removing dross from a vessel of molten zinc with enhanced zinc yield |
| 04/12/2000 | EP0992595A1 Additives for steelmaking in electric arc furnaces |
| 04/12/2000 | EP0991785A2 A method and a device for recovering metals comprising dissolving , concentrating and electrowinning means with rotatable cathode |
| 04/11/2000 | US6048458 Apparatus and method for waste recycling and conversion |
| 04/06/2000 | WO2000019557A1 Method for crushing cell |
| 04/06/2000 | WO1999060320A3 Coke-heated circulating gas cupola furnace for material and/or energetic recycling of waste materials having different compositions |
| 04/06/2000 | CA2311792A1 Method for crushing cell |
| 04/05/2000 | EP0990847A1 Ash melting furnace and ash melting method thereof |
| 04/05/2000 | EP0990053A1 Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues |
| 04/05/2000 | EP0912771B1 Process for producing a metallurgical raw material from oil containing heavy metals |
| 04/05/2000 | CN1249354A Process for efficiently extracting cobalt compound from leftover containing cobalt |
| 04/05/2000 | CN1051114C Method for wet pretreating lead anode mud before acid leaching |
| 04/04/2000 | US6045763 Especially etching solutions which contain ammonia, at least one ammonium salt and metal ions in dissolved form and which accumulate in treatment of substrates containing valuable metals, especially copper-containing electronic sub-assemblies |
| 03/30/2000 | WO2000017406A2 Method for extracting lead from lead-containing raw materials |
| 03/30/2000 | WO2000017404A1 Method for producing directly reduced metal in a multi-tiered furnace |
| 03/30/2000 | CA2343212A1 Method for producing directly reduced metal in a multi-tiered furnace |
| 03/29/2000 | CN1248801A Technology for cleaning and recovering lead from waste accumulator |
| 03/28/2000 | US6042776 Reaction furance for holding molten iron, agitator for molten iron, recovery means comprising two dust collectors, the first collects flue dust of larger particle size from the furnace and the second for collecting smaller particle size |
| 03/23/2000 | WO2000015855A1 Method for reprocessing steel slags and ferriferous materials |
| 03/23/2000 | CA2310044A1 Method for reprocessing steel slags and ferriferous materials |
| 03/21/2000 | US6039790 Leaching using nickel sulfate and sulfuric acid, reducing to nickel metal, leaching an iron bearing solution after acidifying to form nickel sulfate, using formed nickel sulfate solution as leaching solution |
| 03/21/2000 | US6039787 Reacting molten slag with metal bath in oxygen stream, injecting inert gas |
| 03/21/2000 | CA2123382C Processing of compositions containing precious metals and other valuable elements for recovery purposes |
| 03/16/2000 | WO2000014763A1 Image display, method for disassembling the same, and method for recovering part |
| 03/16/2000 | WO2000014286A1 Method for heat-treating recyclings containing oil and iron oxide |
| 03/16/2000 | CA2339014A1 Method for heat-treating recyclings containing oil and iron oxide |
| 03/15/2000 | EP0867028B1 Process for recycling contaminated metal parts |
| 03/15/2000 | CN1247574A Method for recycling iron bearing sludges in steelmaking operation |