| 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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| 02/17/2005 | DE10328903A1 Verfahren und Vorrichtung zum Trennen von in Aluminumlegierungen enthaltenen Eisenwerkstoffteilen Method and apparatus for separating contained in aluminum alloys ferrous material parts |
| 02/16/2005 | CN1580299A Method for purification and preparation of high-purity chromium using electro-plating chromium refuse |
| 02/16/2005 | CN1189578C Production of zinc oxide from complex sulfide concentrates using chloride processing |
| 02/15/2005 | US6855254 Metal recovered from the oil-metal-organic waste slurry using magnetic separator; remaining waste transferred into an anaerobic reactor to react with anaerobic bacteria in a sludge seed; recovering inorganic gases |
| 02/15/2005 | US6855189 Method for removing chrome and/or nickel from liquid slags |
| 02/15/2005 | CA2327878C Recycling of spent pot linings |
| 02/10/2005 | WO2005012583A1 Utilization of lead shavings in abrasion mills for the production of lead oxide |
| 02/10/2005 | WO2005011847A1 Metal oxide processing methods and systems |
| 02/10/2005 | US20050028838 Cleaning tantalum-containing deposits from process chamber components |
| 02/10/2005 | US20050028643 Heating with reducing agents to reduce iron oxide to iron |
| 02/10/2005 | US20050028324 Purification of waste from steel; separation of oxides; reuse |
| 02/10/2005 | DE10332530A1 Verfahren zur Reduktion des löslichen Chromatgehaltes in Zement sowie eine Zubereitung aus Zement und wasserlöslichen Metallsulfaten A method for reducing the soluble chromate in cement, and a preparation of cement and water-soluble metal sulfates |
| 02/10/2005 | CA2537274A1 Metal oxide processing methods and systems |
| 02/09/2005 | CN1188532C Method for reprocessing dust or dust mixtures |
| 02/09/2005 | CN1188358C Device and method treating refuse material contg. hydrocarbons |
| 02/09/2005 | CN1188220C Unit and method for processing of shredder residues and use of a sand fraction produced thereof |
| 02/08/2005 | US6852237 Method for improved recovery of metals |
| 02/03/2005 | WO2005010219A1 Method and apparatus for processing metalline sludge |
| 02/03/2005 | WO2005009917A1 Reducing agent for the soluble chromate content of cement and methods for the production thereof |
| 02/03/2005 | US20050022629 Pyrite is removed from leaching residue by pyrolyzing the residue at 550 degrees C. or higher in a non-oxidative atmosphere to produce calcined ore containing pyrrhotite, precious metals and gangue; and re-leaching the calcined ore in an acidic, aqueous solution |
| 02/03/2005 | CA2532578A1 Method and apparatus for processing metalline sludge |
| 02/03/2005 | CA2531218A1 Reducing agent for the soluble chromate content in cement and methods for producing the same |
| 02/02/2005 | EP1501952A2 Process for extracting platinum group metals |
| 02/02/2005 | CN1572917A Method for recycling of plating solutions |
| 02/02/2005 | CN1187460C Process to recover metal by alkaline leaching |
| 01/27/2005 | WO2005007904A1 Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions |
| 01/25/2005 | US6846470 Reducing impurities using ion exchange resin |
| 01/20/2005 | WO2005005674A1 Recovery of non-ferrous metals from zinc residues |
| 01/19/2005 | CN1185358C Process for for reclaiming non-ferrous metal ash and apparatus therefor |
| 01/19/2005 | CN1185357C Method for processing steel slag |
| 01/18/2005 | US6844103 Apparatus and method of recovering lithium cobalt oxide from spent lithium batteries |
| 01/18/2005 | US6843917 Method for separating in an aqueous medium lanthanides and/or actinides by combined complexing-nanofiltration, and novel complexing agents therefor |
| 01/18/2005 | US6843831 Contacting flue gas with a carbonaceous material containing a solid carbonaceous residue of synthetic rutile production from titaniferrous ores |
| 01/18/2005 | US6843828 Method for treating slags or slag mixtures on an iron bath |
| 01/18/2005 | US6843058 Method for making gypsum and zinc sulfide |
| 01/13/2005 | WO2005003397A1 Mechanical separation of volatile metals at high temperatures |
| 01/13/2005 | WO2004083467A3 Recovery of metal values from cermet |
| 01/13/2005 | CA2530527A1 Mechanical separation of volatile metals at high temperatures |
| 01/12/2005 | EP1495149A1 Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 01/12/2005 | CN1563440A Techhnique for reclaiming metal concentrate in obsolete PCB physically |
| 01/11/2005 | CA2323412C Method for transforming slag derived from non-iron metallurgy |
| 01/06/2005 | WO2005001146A2 Method for conditioning slags and dust |
| 01/06/2005 | WO2004048636A3 Method of cleaning a coated process chamber component |
| 01/05/2005 | EP1493830A1 Smelt reduction method for processing slags and dusts from stainless steelmaking |
| 01/05/2005 | EP1272679B1 Tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross and method of operation |
| 01/05/2005 | CN1559703A Recovering used diamond sawweb by inert gas atomization condensation method |
| 01/04/2005 | US6838504 Metal wastes in polymer matrix; control releasing; pollution control |
| 12/30/2004 | US20040261577 Recovering zinc from a metal waste, using a cyclone separator to separate, filtration, heating to evaporate, oxidation, recovering volatile zinc from electric arc furnace dust; demetallization, purification, |
| 12/29/2004 | WO2004113230A1 Extraction process for reactive metal oxides |
| 12/29/2004 | EP1491644A1 Process and apparatus for the separation of ferrous parts from aluminium alloys |
| 12/29/2004 | EP1490375A2 Process for the dissolution of copper metal |
| 12/29/2004 | EP1332234B1 Precious metal scavenging from a liquid medium with a functionalised polymer fiber |
| 12/29/2004 | CN1557978A Production technology for extracting vanadium and molybdenum from spent aluminum base molybdenum catalyzer using wet method |
| 12/29/2004 | CN1557977A Method of handling spent catalyst |
| 12/29/2004 | CN1182264C Method for producing zinc using IS shaft furnace and corresponding IS shaft furnace |
| 12/29/2004 | CN1181917C Mixed metal catalyst comprising combustible binder |
| 12/28/2004 | US6835228 Process of recovering valuable metals from waste secondary batteries |
| 12/23/2004 | US20040256235 Removing one metal from an alloy plating solution containing two kinds of metals that differ in standard electrode potential, and preparing a single metal plating solution from the remaining other metal |
| 12/23/2004 | DE10325557A1 Verfahren zur Verringerung von Schadstoffen in den Abgasen eines Schmelzofens A process for the reduction of pollutants in the exhaust gases of a melting furnace |
| 12/23/2004 | DE10325556A1 Verfahren zur Verringerung von Schadstoffen in den Abgasen eines brennerbefeuerten Schmelzofens A process for the reduction of pollutants in the exhaust gases of a burner-fired melting furnace |
| 12/22/2004 | EP1488862A1 Wet method for treating petroleum originated combustion ash |
| 12/22/2004 | EP1488015A1 Process for the recovery of nickel from spent catalyst |
| 12/22/2004 | CN1556232A Device for producing oxygen less copper utilizing waste red copper |
| 12/22/2004 | CN1556231A Technology of producing oxygenless copper using waste red copper |
| 12/22/2004 | CN1181213C Regeneration process of zinc residue produced in hot zinc plating |
| 12/22/2004 | CN1181212C Copper-nickel slag treating method |
| 12/21/2004 | CA2250701C Process for separating sulphide-containing materials using hydrogen peroxide |
| 12/21/2004 | CA2236149C Metallurgical dust recycle process |
| 12/16/2004 | WO2004108975A1 Method for reducing the amount of pollutants in waste gases of a smelting furnace |
| 12/16/2004 | WO2004108974A1 Method for the reduction of harmful substances in the waste gases of a burner-fired melting furnace |
| 12/16/2004 | US20040253175 Electrostatically enhanced tribochemical methods and apparatus |
| 12/16/2004 | US20040251335 For sorting shredder residues of metal-containing wastes, e.g., vehicle bodies; ferromagnetic, non-ferromagnetic metals, granulate, fiber, and sand fractions are produced as end products |
| 12/16/2004 | US20040251173 Unit and method for processing of shredder residues and uses of a sand fraction produced thus |
| 12/16/2004 | US20040250710 Grinding sludge compacting machine |
| 12/15/2004 | CN1180099C Method for recovering waste copper foil |
| 12/14/2004 | US6831939 Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials |
| 12/14/2004 | US6830605 Recovery of metal values from cermet |
| 12/14/2004 | CA2090575C Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy at high enthalpy |
| 12/09/2004 | WO2004106563A1 Process for recovery of palladium from spent catalyst |
| 12/09/2004 | WO2004106560A1 A process for treating dust |
| 12/09/2004 | WO2004106233A2 A process for recovering phosphorus from phosphorous production sludge |
| 12/09/2004 | WO2004105989A2 Dross removal and solder reclamation improvements |
| 12/09/2004 | US20040244537 Removal of heavy metals |
| 12/09/2004 | DE10323507A1 Verfahren zur Rückgewinnung von metallischen Elementen, insbesondere metallischem Chrom, aus metalloxidhaltigen Schlacken im Elektrolichtbogenofen Process for the recovery of metallic elements, particularly metallic chromium, from slags containing metal oxide in the electrical arc furnace |
| 12/08/2004 | EP1484119A1 Printed circuit board recycle method and apparatus thereof |
| 12/08/2004 | CN1552925A Processing method for industrial waste material |
| 12/08/2004 | CN1179058C Recovery of precious metals from coal burning slag by multiple crushing/suspension stages |
| 12/08/2004 | CN1179057C Method for upgrading steel plant dust |
| 12/07/2004 | US6827856 Using chelating resins for removing copper; displacing absorbed copper by treating resins with hydrochloric acid or sulfuric acid solutions; waste from iodine recovery by copper mineralization of X-ray contrast agent production solutions |
| 12/02/2004 | WO2004104239A1 Beneficiation of titaniferous slags |
| 12/02/2004 | WO2004104233A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 12/02/2004 | WO2004103515A1 Method for clarification of wood having been treated with chemical containing copper, chromium or arsenic |
| 12/02/2004 | WO2004085686A3 Method of recovering a metal from a mixture by melt freeze fractionation |
| 12/02/2004 | US20040241073 A process for total environmental remediation of a phosphorus contaminated site |
| 12/02/2004 | US20040241066 Digestion of cooling catalyst with mineral acids; filtering to separate carbon particles; salt formation |
| 12/02/2004 | US20040238352 Production, refining and recycling of lightweight and reactive metals in ionic liquids |
| 12/02/2004 | CA2526184A1 Method for clarification of wood having been treated with chemical containing copper, chromium or arsenic |
| 12/01/2004 | EP1268867B1 Method and a plant for removing mercury contamination from metal with a reducing liquid |
| 12/01/2004 | EP0973953B1 Device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc |
| 11/25/2004 | WO2004101832A2 Microwave enhancement of the segregation roast |