| 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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| 05/02/1985 | EP0138929A1 Method and device for the recovery of liquid aluminum by compression of hot slag. |
| 04/30/1985 | US4514369 Recovery of cobalt, molybdenum, nickel, tungsten and vanadium from an aqueous ammonia and ammonium salt solution by coextracting molybdenum, tungsten and vanadium and sequential extraction of nickel and cobalt |
| 04/30/1985 | US4514368 Leaching nickel, cobalt, molybdenum, tungsten, and vanadium from spent hydroprocessing catalysts |
| 04/30/1985 | US4514223 Continuous direct process of lead smelting |
| 04/25/1985 | WO1985001670A1 Processes for treating waste streams |
| 04/16/1985 | US4511539 Recovery of precious metal |
| 04/10/1985 | EP0136331A1 Reclamation of a palladium-tin based electroless plating catalyst from the exhausted catalyst solution and accompanying rinse waters |
| 04/02/1985 | US4508701 Extraction of tungsten from spent or scrap catalyst materials |
| 04/02/1985 | CA1184968A1 Process for the disassembling of scrap alkaline accumulators |
| 03/26/1985 | CA1184387A1 Process for recovering rare metals from the combustion residue of coal by digestion |
| 03/20/1985 | EP0134435A2 A process for the recovery of valuable metals from the ashes of normal and complex pyrites |
| 03/12/1985 | CA1183808A1 Wet-classifying method for recovery of carbon and iron-bearing particles |
| 02/28/1985 | WO1985000834A1 Process for the recovery of non ferrous and precious metals from carbon-containing materials |
| 02/26/1985 | US4501614 Alloyed solid solution of sodium and potassium chlorides |
| 02/26/1985 | CA1183187A1 Apparatus and method for melting and treating metal wastes |
| 02/20/1985 | EP0133417A2 Process and device for the introduction of metal to a metal melt |
| 02/19/1985 | US4500495 Roasting, contacting with aqueous ammonia and sulfur dioxide, precipitation with hydrogen sulfide |
| 02/12/1985 | US4498927 Thermal reduction process for production of magnesium using aluminum skim as a reductant |
| 02/12/1985 | US4498523 Continuous method for reclaiming, melting and casting aluminum scrap |
| 02/12/1985 | CA1182274A1 Recovery of magnesium sulfate from a solution of a mixture of magnesium sulfate and transition metal sulfates |
| 02/05/1985 | CA1182015A1 Knee brace |
| 02/05/1985 | CA1181951A1 Recovery of molybdenum from spent catalyst solutions from hydroperoxide epoxidations |
| 01/31/1985 | WO1985000384A1 Improvements in or relating to the dissolution of noble metals |
| 01/23/1985 | EP0132243A1 A method for recovering lead from waste lead products |
| 01/22/1985 | US4495157 Recovery of metal values from spent hydrodesulfurization catalysts |
| 01/22/1985 | US4494971 Process and apparatus for granulation of slag |
| 01/02/1985 | EP0129975A1 Recovery of aluminium scrap |
| 01/02/1985 | CA1180191A Recovery of molybdenum as an aqueous solution |
| 01/01/1985 | US4491475 Constant rate briquette feeding system |
| 01/01/1985 | US4491473 Method of operating metallic scrap treating furnace to fragment and segregate metallic components therein |
| 01/01/1985 | US4491470 Method for separating non-ferrous metals from ferruginous secondary substances |
| 12/18/1984 | US4489046 Arsenic trioxide |
| 12/18/1984 | US4488950 Heavy metal separation from copper-bearing wastes |
| 12/18/1984 | US4488905 Method of recovering volatile metals from material containing metal oxides |
| 12/04/1984 | US4486228 Metal scrap reclamation system |
| 11/27/1984 | US4484730 Device for leaching copper from slags |
| 11/21/1984 | EP0125383A2 Destruction of halogen-containing materials |
| 11/20/1984 | CA1178026A1 Treatment of chlorination residue |
| 11/13/1984 | US4482526 Recovery of tungsten and molybdenum from sulfur-bearing material |
| 11/06/1984 | US4480797 Installation for treatment of waste metal and liquid dross |
| 11/06/1984 | CA1177368A1 Decoating of aluminium scrap |
| 10/30/1984 | CA1176854A1 Safe disposal of metal values in slag |
| 10/24/1984 | EP0122658A1 Method for the separate recovery of metals from waste in particular chemical waste |
| 10/23/1984 | US4478633 Method for processing wastes resulting from production of phosphorus, namely, slime and off-gasses, with utilization of the resultant products |
| 10/16/1984 | CA1176062A1 Recovery of copper from arsenical drosses |
| 10/09/1984 | US4475993 Extraction of trace metals from fly ash |
| 10/03/1984 | EP0120684A1 Improvements in melting scrap metal and ingestion of solids in molten metal |
| 10/02/1984 | US4474735 Process for the recovery of valuable metals from spent crude-oil sulfur-extraction catalysts |
| 09/27/1984 | WO1984003719A1 Method and device for the recovery of liquid aluminum by compression of hot slag |
| 09/25/1984 | US4473519 Method of agglomeration of fly ash into pellets |
| 09/25/1984 | CA1174946A1 Recovery of coated aluminium scrap |
| 09/25/1984 | CA1174860A1 Method of recovering gold from anode slimes |
| 09/25/1984 | CA1174858A1 Recovery of precious metals from spent alumina- containing catalysts |
| 09/19/1984 | EP0119178A1 A method for separating solutions |
| 09/19/1984 | EP0119094A2 Metal scrap reclamation system |
| 09/11/1984 | CA1174054A1 Recovery of indium in conjunction with the removal of cadmium, zinc and copper from lead, copper and zinc smelter or refinery dusts |
| 09/04/1984 | CA1173980A1 Dore slag treatment |
| 08/28/1984 | US4468011 Afterburner for treating waste gas |
| 08/28/1984 | CA1173218A1 Removal of germanium from the effluent of processes for the production of optical components |
| 08/21/1984 | US4466826 Process for recovering metal values from alloy scraps |
| 08/16/1984 | WO1984003057A1 Reclamation of a palladium-tin based electroless plating catalyst from the exhausted catalyst solution and accompanying rinse waters |
| 08/15/1984 | EP0115928A2 A process for recovering metal values from alloy scraps |
| 08/14/1984 | US4464830 Process for the disassembling of scrap alkaline electric storage batteries |
| 08/14/1984 | CA1172456A1 Hydrometallurgical process for the recovery of valuable metals from metallic alloys |
| 08/07/1984 | US4464479 Method for treating red mud |
| 08/07/1984 | US4464344 Process for recovering non-ferrous metal values from ores, concentrates, oxidic roasting products or slags |
| 08/07/1984 | CA1172205A1 Process and apparatus for treating titanium machining scrap |
| 07/24/1984 | CA1171285A1 Heat recovery and melting system for scrap metals |
| 07/18/1984 | EP0113580A2 Heavy metal separation from copper-bearing wastes |
| 07/17/1984 | US4460442 Precipitation of lead and lead oxide with base, dissolving in fluoboric acid and electrolysis to recover lead |
| 07/03/1984 | US4457494 Metal melting furnace |
| 07/03/1984 | CA1170060A1 Chromium recovery from superalloy scrap by selective chlorine leaching |
| 06/26/1984 | US4456230 Apparatus for the separation of metallic zinc from residues containing zinc |
| 06/26/1984 | CA1169663A1 Recovery of heavy metals from spent alumina |
| 06/26/1984 | CA1169662A1 Method for recovering useful metals from dust discharged from metal refining metallurgical furnace |
| 06/19/1984 | US4455283 Molybdenum epoxidation catalyst recovery |
| 06/12/1984 | US4454098 Also containing arsenic; digestion with alkali metal hydroxide, slurrying with water, adding ferric salt |
| 06/12/1984 | CA1169122A1 Process for recovering lead and lead-compounds from scrap lead-acid accumulators |
| 06/05/1984 | US4452762 Leaching with sulfuric acid, then with an oxidizing alkaline solution, then with water |
| 05/29/1984 | US4451289 Process for extracting non-ferrous metals from iron-bearing scraps |
| 05/29/1984 | US4451287 Flux in recovery of aluminum in reverberatory furnace |
| 05/22/1984 | US4450002 Detoxification of waste water by acidification and rapid flow over aluminum; sewage treatment |
| 05/08/1984 | US4447262 Destruction of halogen-containing materials |
| 05/08/1984 | US4447261 Layering granular wastes and sintering mixture of iron oxide and carbonaceous fuel, then combustion |
| 05/02/1984 | EP0106997A2 Method of processing scrap metal and plant for its mechanical processing |
| 05/01/1984 | US4445935 Method for the recovery of silver from waste photographic fixer solutions |
| 04/25/1984 | EP0106456A1 Tungsten recovery |
| 04/10/1984 | US4442073 Oxidation, solvent extraction, precipitation |
| 04/10/1984 | US4441922 Treatment method for metal bearing oily waste |
| 03/20/1984 | US4437889 Nitric acid |
| 03/20/1984 | US4437885 Method for the physical separation of a metallic phase and scoriae in an induction furnace |
| 03/20/1984 | US4437650 Briquette melting apparatus |
| 03/06/1984 | US4435368 Hydrometallurgical process for selective dissolution of mixtures of oxy compounds |
| 03/06/1984 | CA1163382A1 Process of treating dust containing zinc and lead and derived in an iron or steel making process |
| 02/28/1984 | US4434241 Rhodium, lithium, idoine values |
| 02/28/1984 | US4434141 Leaching spent hydroprocessing catalysts |
| 02/28/1984 | US4434140 Stripping a solution containing molybdenum and vanadium values |
| 02/28/1984 | US4434001 Method for manufacturing metal from fine-grain metal-oxide material |
| 02/28/1984 | CA1162747A1 Process for the solidification of tailings produced by the processing of hard rock ore |
| 02/21/1984 | US4432953 Leaching cobalt from spent hydroprocessing catalysts with sulfur dioxide |