| 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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| 06/03/2008 | US7381383 Hermetic door and retort as interface for removal of vapors of heavy metals and other hazardous wastes such as dioxins from object being heated under reduced pressure in second hermetic chamber; condensation of gases at the hermetic door is prevented so that condensates can be removed without stopping |
| 05/30/2008 | CA2607770A1 Method for recovering valuable metals from wastes |
| 05/28/2008 | EP1925896A1 Device for feeding metal scrap into a metal melt |
| 05/28/2008 | CN101189351A Method for reducing and/or refining a metal-containing slag |
| 05/28/2008 | CN101188323A Vacuum distillation industrial device special for recycling abandoned nickel and cadmium cell |
| 05/28/2008 | CN101186971A Method for reclaiming precious metal palladium from waste palladium-carbon catalyst |
| 05/28/2008 | CN101186970A Method for extracting neodymium from neodymium-iron-boron electroplating pre-processing acid washing waste water |
| 05/28/2008 | CN100390310C Method for recovering silver from low silver contained industrial waste water |
| 05/22/2008 | WO2008059770A1 Method for collecting metal |
| 05/21/2008 | EP1618219A4 Recovery of metal values from cermet |
| 05/21/2008 | CN201062279Y Apparatus for reclaiming pyrolusite powder |
| 05/21/2008 | CN101182598A Energy efficient technology for powder metallurgy reducing reagent |
| 05/15/2008 | WO2008056125A1 Lead recycling |
| 05/15/2008 | US20080110767 very effectively with a low frequency electrolysis current; current efficiencies of between 120% and 140% lead to the conclusion that a chemical dissolving process is also taking place; reversed polarity; passivation layer becomes detached with the inclusion of metallic constituents; Re, Pt, Ta, Hf |
| 05/15/2008 | DE202008001480U1 Drehtrommelofen zur Schmelzgewinnung von Schwermetall Rotary furnace for smelting recovery of heavy metal |
| 05/14/2008 | EP1654392B1 Utilization of lead shavings in abrasion mills for the production of lead oxide |
| 05/14/2008 | CN101177734A Method for flotation of high-grade pyrite from gold extraction residues |
| 05/14/2008 | CN101177339A Reducer for reducing dissolubility chromate content in cement and manufacturing method thereof |
| 05/08/2008 | WO2008052232A1 Iron oxide sintering process for spray roast oxide with exhaust gas recirculation |
| 05/08/2008 | DE102006052181A1 Verfahren zur kontinuierlichen oder diskontinuierlichen Gewinnung eines Metalls oder mehrerer Metalle aus einer das Metall oder eine Verbindung des Metalls enthaltenden Schlacke Process for the continuous or discontinuous recovery of a metal or several metals from a metal or a compound of the metal-containing slag |
| 05/07/2008 | EP1917374A1 Magnesium alloy |
| 05/07/2008 | EP1917369A1 Method for separating impurities out of feed stock in copper melts |
| 05/07/2008 | CN101173325A Method for smelting host board and waste hardware, and device thereof |
| 05/07/2008 | CN100386453C Method for decoating on waste plastic metal |
| 05/02/2008 | WO2008050678A1 Method for removing lead from cement kiln |
| 04/30/2008 | CN101171348A Method for the recovery of valuable metals and arsenic from a solution |
| 04/30/2008 | CN100385025C Method of coproducing modified polyiron from copper extracted PCB acid etching waste liquid |
| 04/30/2008 | CN100385023C Copper recovering treatment process |
| 04/29/2008 | US7365236 Converting into hydrocarbon mixture under hypoxic/anoxic conditions; extracting copper, chromium, and arsenic from chromated copper arsenate treated wood |
| 04/29/2008 | CA2517605C Method for recycling aluminum alloy wheels |
| 04/24/2008 | WO2008047010A2 Method for treating waste containing precious metals and device for implementing said method |
| 04/24/2008 | WO2007134789A3 Use of residual matter and/or waste in electric low-shaft furnaces |
| 04/24/2008 | CA2666767A1 Method for treating waste containing precious metals and device for implementing said method |
| 04/23/2008 | EP1913991A1 Purification apparatus and method of purification |
| 04/23/2008 | EP1913166A2 Method for recycling scrap containing aluminium-lithium-type alloys |
| 04/23/2008 | CN101166837A Cleaning of oil- contaminated granular solids, in particular spent catalysts |
| 04/23/2008 | CN100383264C Oxygen-enriched fuming Zn extraction process of plumbum smelting slag |
| 04/23/2008 | CN100383261C Process for extracting metal cobalt from waste hard alloy |
| 04/17/2008 | WO2008017724A3 Aggregate and filler extracted from slag |
| 04/16/2008 | EP1561103B1 Separating vessel |
| 04/16/2008 | CN101161834A Method for separating mineral from No.11 coal bed acid water |
| 04/16/2008 | CN100381594C Waste aluminium recovering machine |
| 04/16/2008 | CN100381593C Method and device of refining separating zinc by bismuth method |
| 04/09/2008 | CN101157985A Comprehensive reclaiming method for pyrite slag |
| 04/09/2008 | CN101157980A Preparation method of product for processing mineral powder and flue dust |
| 04/08/2008 | US7354460 Method for manufacturing core material for electrode plate and method for manufacturing alkaline storage battery |
| 04/08/2008 | CA2398344C Method for treating slags or slag mixtures on an iron bath |
| 04/03/2008 | WO2008038556A1 Precious metal recovering apparatus |
| 04/03/2008 | WO2008037703A1 Process for the heat treatment of metallic residues contaminated by organic compounds, and device for its implementation |
| 04/03/2008 | CA2664825A1 Process for the heat treatment of metallic residues contaminated by organic compounds, and device for its implementation |
| 04/02/2008 | EP1905853A1 Heat treatment method of metal-containing waste materials contaminated with organics and apparatus therefor |
| 04/02/2008 | EP1601802B1 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 04/02/2008 | CN101153356A Method for pulverizing circuit board by chemical swelling strengthen machine |
| 03/26/2008 | EP1737993A4 Improved recycling method for al-b, c composite materials |
| 03/26/2008 | EP1663456A4 Metal oxide processing methods and systems |
| 03/26/2008 | CN101148701A Method for modifying non-ferrous metal copper slag/nickel slag by using combustible matter and preparing high-grade fuel |
| 03/25/2008 | US7347920 Production, refining and recycling of lightweight and reactive metals in ionic liquids |
| 03/25/2008 | CA2324166C Cold bonded iron particulate pellets |
| 03/20/2008 | WO2008031897A1 Process for recovering group vi-b metals from spent catalysts |
| 03/20/2008 | WO2008031203A1 Oxidative and anoxic extraction of metals from sulphide minerals |
| 03/20/2008 | US20080069763 Method for manufacturing titanium oxide-containing slag |
| 03/20/2008 | US20080066576 Methods for Recovering Refractory Metal from Wheel Grinding |
| 03/20/2008 | CA2663228A1 Process for recovering group vi-b metals from spent catalysts |
| 03/20/2008 | CA2662588A1 Oxidative and anoxic extraction of metals from sulphide minerals |
| 03/19/2008 | EP1899271A2 Process for the extraction of specific transition metals |
| 03/19/2008 | CN101144122A Method of recycling zinc-containing converter dust |
| 03/13/2008 | WO2008030106A1 Method and device for catchment of platinum group metals in a gas stream |
| 03/13/2008 | US20080064771 defluorination using water in the supercritical state; remove fluorine or hydrogen fluoride in concentrated form; simple, versatile and environmentally friendly, air pollution control |
| 03/12/2008 | CN101142075A Compression molding machine for metal material briquette, manufacturing apparatus for metal material briquette, and compression molding method for metal material briquette |
| 03/12/2008 | CN101139660A Method for extracting iron-lead and gold-silver from gold concentrate acidifying baking residue |
| 03/12/2008 | CN101139655A Method for purifying granular slag steel |
| 03/12/2008 | CN100374587C Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead |
| 03/12/2008 | CN100374195C Gas cleaning process and equipment therefor |
| 03/06/2008 | WO2008025055A1 Treatment of green pellets using microwave energy |
| 03/06/2008 | CA2661511A1 Treatment of green pellets using microwave energy |
| 03/05/2008 | EP1893779A1 Separation of metal values in zinc leaching residues |
| 03/05/2008 | CN201031245Y Full-automatic dross spot separator |
| 03/05/2008 | CN101135010A Method for recovering and reusing niobium and niobium alloy waste |
| 03/05/2008 | CN100372953C Regeneration process of zinc plated steel wire with drawing peeled-off zinc |
| 03/05/2008 | CN100372952C Method of extracting gold tail slag from arsenic containing aurin ore then extracting gold and silver |
| 02/28/2008 | WO2008022986A2 Process for the recovery of metals from components |
| 02/28/2008 | US20080050295 Lithium Battery Treatment Method |
| 02/28/2008 | US20080047395 Composition for a desulfurizer with a high sulfur capacity and the process of making the same |
| 02/27/2008 | CN100371476C Method of slag fuming |
| 02/26/2008 | US7335618 Method for manufacturing hydrorefining catalyst, and metal recovery method |
| 02/20/2008 | EP1888796A1 Method for reducing and/or refining a metal-containing slag |
| 02/20/2008 | EP1888464A2 System and method for separating tellurium waste |
| 02/20/2008 | CN101126138A Method for smelting chromium-nickel-iron alloy from stainless steel dust-removing ash |
| 02/20/2008 | CN101126133A Method for reclaiming valuable element from zinc kiln slag |
| 02/20/2008 | CN101126132A Method and device for reclaiming heavy metal from fly ash or secondary fly ash |
| 02/20/2008 | CN101126131A Method for reclaiming solar battery thin splinter or IC splinter |
| 02/20/2008 | CN101126123A Method for washing and processing nickel-containing iron slag |
| 02/20/2008 | CN101126122A Method for processing nickel chloride leachate |
| 02/13/2008 | CN101121963A Method of recovering platinum group element and apparatus therefor |
| 02/13/2008 | CN101120854A Gold furnace capable of recovering metal foil |
| 02/12/2008 | US7328863 Counterweight and method for recycling the same |
| 02/07/2008 | WO2008014538A1 Lead slag reduction |
| 02/07/2008 | CA2658674A1 Lead slag reduction |
| 02/06/2008 | CN101117665A Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag |
| 01/30/2008 | CN101115854A Method for recovering indium |