| 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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| 01/20/1983 | WO1983000166A1 A method for separating metals from alloys |
| 01/20/1983 | WO1983000165A1 A furnace for melting metal swarf |
| 01/18/1983 | US4369164 Recovery of copper from arsenical drosses by ammonium arsenate leach |
| 01/18/1983 | CA1139569A1 Leaching gold - silver ores |
| 01/18/1983 | CA1139566A1 Process of converting polluting particles emitted in chemical or physical processes, into harmless substances |
| 01/18/1983 | CA1139556A1 Method and apparatus for charging anode scraps to a converter furnace |
| 01/11/1983 | US4368070 Method for scrubbing the flues and for recovering _the salts in a process for the production of secondary aluminum |
| 01/05/1983 | EP0068901A1 A furnace for melting metal swarf |
| 01/04/1983 | CA1138649A1 Process for recovering aluminum and other metals from fly ash |
| 12/28/1982 | US4365993 Recovery of coated aluminium scrap |
| 12/14/1982 | US4363722 Process and apparatus for treating titanium machining scrap |
| 12/07/1982 | US4362557 Purifying titanium-bearing slag by promoted sulfation |
| 11/30/1982 | CA1136594A1 Treatment of scrap |
| 11/23/1982 | US4360380 Process for recovery of metal values from sludges |
| 11/23/1982 | US4360379 Process for the removal of rust from cast iron borings and the like in preparation for melting |
| 11/02/1982 | US4357261 Method for manufacture of a composite copper-arsenic compound mixture |
| 11/02/1982 | US4357161 Method for processing wastes resulting from production of phosphorus, namely, slime and off-gases, with utilization of the resultant products |
| 11/02/1982 | US4356959 Method particularly intended for separating mercury compounds and mercury alloys in solid particle form from a fluid, and an apparatus for carrying out the method |
| 10/27/1982 | EP0063450A1 Recovery of precious metal |
| 10/26/1982 | US4356030 Safe disposal of metal values in slag |
| 10/26/1982 | CA1134337A1 Method and apparatus for processing dross |
| 10/19/1982 | US4355009 Hydrometallurgy |
| 09/22/1982 | EP0060826A1 Method of recovering heavy metals |
| 09/22/1982 | EP0060376A1 Recovery and recycle of molybdenum values from coal residue |
| 09/16/1982 | WO1982003092A1 Safe disposal of metal values in slag |
| 09/14/1982 | USRE31028 Roller milling; recovering aluminum |
| 09/14/1982 | US4349423 Process for decomposing hard metal scrap |
| 09/14/1982 | US4349381 Recovery of heavy metals from spent alumina |
| 09/14/1982 | US4349380 Method of recovering metals from metal containing materials |
| 09/07/1982 | US4348228 Yield of metal values from incinerated sludges |
| 09/07/1982 | US4348224 Digestion, cemetation, reduction |
| 08/31/1982 | US4347124 Method and device of separating materials of different density by ferromagnetic liquid |
| 08/31/1982 | CA1130572A1 Treating copper-bearing materials with a heterocyclic amine and a halogenated hydrocarbon to recover metal values therefrom |
| 08/19/1982 | WO1982002724A1 Method and apparatus for handling flux fines |
| 08/17/1982 | CA1129656A1 Process for the treatment of aluminum-salt slags |
| 08/10/1982 | US4343774 Method for recovering valuable metals from deactivated catalysts |
| 08/10/1982 | CA1129211A1 Recovery and separation of gadolinium and gallium |
| 08/03/1982 | CA1128760A1 Process for treatment of residues from ferriferous zinc ores |
| 07/28/1982 | EP0056743A1 Recovery of molybdenum as an aqueous solution |
| 07/28/1982 | EP0056742A1 Recovery of molybdenum from spent catalyst solutions from hydroperoxide epoxidations |
| 07/20/1982 | US4340421 Method of recovering lead from lead-acid batteries |
| 07/20/1982 | CA1127888A1 Inspection of the interior of an enclosure |
| 07/13/1982 | CA1127610A1 Recovery of metal granules from process sludge |
| 07/06/1982 | CA1126963A1 Process of regenerating and recovering lead from lead sulphate-containing wastes |
| 06/30/1982 | EP0055004A1 Process for processing moist compositions containing pollution-causing substances and composition |
| 06/29/1982 | US4337085 Recovery of precious metals from spent alumina-containing catalysts |
| 06/29/1982 | CA1126535A1 Monitoring continuous casting |
| 06/22/1982 | US4336218 Method for recovering residual matter accumulated in the production and machining of steel |
| 06/15/1982 | CA1125519A1 Metal recovery |
| 06/10/1982 | WO1982001895A1 Metal recovery process and dross collection receptacle |
| 06/09/1982 | EP0053406A1 Process for the extraction of non-iron metals from residues that contain iron |
| 06/08/1982 | US4333219 Method and machine for recovering material from consumed accumulator batteries |
| 06/01/1982 | US4332777 Hydrometallurgical treatment of metallurgical dust |
| 05/27/1982 | WO1982001724A1 A method for manufacturing metal from fine-grain metal-oxide material |
| 05/11/1982 | CA1123206A1 Pyrometallurgical method and furnace processing heavy nonferrous metal raw materials |
| 05/05/1982 | EP0050795A1 Method and apparatus for reclaiming metals from metallic scrap material |
| 05/04/1982 | US4328191 Process for the recovery of molybdenum from spent catalysts |
| 04/07/1982 | EP0049169A2 Hydrometallurgical processing of precious metal-containing materials |
| 04/07/1982 | EP0048823A1 Recovery of precious metals from spent alumina-containing catalysts |
| 04/06/1982 | CA1121527A1 Process for chrome recovery from industrial waste and the like, including pollution control of the same |
| 03/30/1982 | US4322245 Method for submerging entraining, melting and circulating metal charge in molten media |
| 03/24/1982 | EP0047742A1 A process for recovering non-ferrous metal values from ores, concentrates, oxidic roasting products or slags. |
| 03/16/1982 | US4320108 Process for the removal of metals from carbon black |
| 03/16/1982 | US4320094 Partitioning of refractory metals from oxidation resistant scrap alloy |
| 03/16/1982 | US4319921 Heat recovery and melting system for scrap metals |
| 03/02/1982 | US4317801 Recovery of molybdenum from spent catalyst solutions from hydroperoxide epoxidations |
| 03/02/1982 | US4317800 Process for simultaneously processing of used metal and/or metal _scrap and scrap containing halogenated hydrocarbons |
| 03/02/1982 | US4317684 Process of converting polluting particles, emitted in chemical or physical processes, into harmless substances |
| 02/16/1982 | US4315896 Recovery of molybdenum as an aqueous solution from spent catalyst |
| 02/02/1982 | US4313822 Method for recovering the lead and zinc values in secondary scrubber muds from blast furnace gases |
| 01/26/1982 | CA1117087A1 Process for reclaiming and upgrading thin walled malleable waste material |
| 01/26/1982 | CA1116869A1 Recovery of copper from arsenic-containing metallurgical waste materials |
| 01/19/1982 | CA1116582A1 Process for extracting vanadium from deactivated catalysts |
| 01/13/1982 | EP0043646A1 Separation of chromium from scrap |
| 01/12/1982 | US4310351 Pretreatment |
| 01/12/1982 | US4310350 Recovering non-volatile metals from dust containing metal oxides |
| 12/29/1981 | CA1115064A1 Recovery of aluminum and other metal values from fly ash |
| 12/15/1981 | US4305805 Silver recovery apparatus |
| 12/10/1981 | WO1981003500A1 Heavy metal recovery in ferrous metal production processes |
| 12/08/1981 | US4304599 Heavy metal removal process |
| 12/08/1981 | US4304596 Process for a sulfidizing pretreatment of the slag of pyrometallurgical processes in order to facilitate its further treatment |
| 12/02/1981 | EP0040870A1 Process of treating a dust which contains zinc and lead and which is derived from an iron or steel making process |
| 12/02/1981 | EP0040659A1 Heavy metal recovery in ferrous metal production processes |
| 12/02/1981 | EP0040643A1 Method for separating particulate matter into soluble and insoluble portions and apparatus for performing said method |
| 12/01/1981 | US4303441 Metal recovery process |
| 12/01/1981 | CA1113256A1 Waelz process of volatilizing zinc and lead from iron oxide containing materials |
| 11/24/1981 | US4302249 Method for processing wastes resulting from production of phosphorus namely, slime and off-gases, with utilization of the resultant products |
| 11/24/1981 | US4302245 Magnetism |
| 11/17/1981 | USRE30795 Green balls formed by agglomerating wet-collected fume produced in metallurgical furnaces |
| 11/10/1981 | US4299376 Apparatus for the selective separation of non-ferromagnetic metals from a mixture of comminuted metallic scrap |
| 11/03/1981 | CA1111659A1 Process for recovering valuable metals from superalloy scrap |
| 10/21/1981 | EP0038322A1 Process for recovering metals from metallic salt solutions |
| 10/21/1981 | EP0038106A1 Process for reclaiming chromium from roasted chromium ash containing hexavalent chromium |
| 10/21/1981 | EP0038105A2 Process for improving the conversion of trivalent chromium in ash to hexavalent chromium |
| 10/13/1981 | US4294434 Heavy metal removal apparatus |
| 10/06/1981 | CA1110221A1 Process for extracting vanadium from deactivated catalysts |
| 09/29/1981 | US4292282 Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons |
| 09/22/1981 | CA1109274A1 Rhodium recovery from hydroformylation still heel with triaryl phosphite ligand |
| 09/17/1981 | WO1981002568A1 A method for working-up arsenic-containing waste products |
| 09/16/1981 | EP0035826A1 Recovery of coated aluminium scrap |