| Patents for C22B 7 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof (11,341) |
|---|
| 08/19/1980 | US4218242 Silver recovery method |
| 08/19/1980 | CA1083826A1 Process for extracting silver from residues containing silver and lead |
| 08/06/1980 | EP0013692A1 Apparatus for the selective separation of non-ferromagnetic metals from a mixture of metallic scrap particles of about uniform size |
| 08/05/1980 | US4216012 Process for the treatment of incinerated sewage sludge ash |
| 08/05/1980 | US4215989 Process for chrome recovery from industrial waste and the like, as from chrome-ladened tannery waste, including pollution control of the same |
| 07/29/1980 | US4214897 Process for the extraction of non-ferrous metals from slags and other metallurgical by-products |
| 07/29/1980 | US4214736 Arc heater melting system |
| 07/22/1980 | US4213778 Process for treating a mud produced during gas scrubbing in a blast furnace or a steelworks |
| 07/22/1980 | US4213600 Spent photographic processing solutions |
| 07/22/1980 | CA1082125A1 Production of aluminium |
| 07/08/1980 | US4211557 Grinding and smelting chlorine-free cases and lead sulfate- and lead oxide-containing wastes |
| 07/01/1980 | US4210441 Method for the continuous or discontinuous treatment of molten slag, particularly with contents of heavy metal oxides, for the recovery of portions contained therein of valuable metals or their combinations, respectively |
| 07/01/1980 | CA1080486A1 Rehabilitation of zinc electrolytic metallurgy residues by recovery of contained metals |
| 07/01/1980 | CA1080483A1 Process for the fuming treatment of metallurgical slag |
| 06/24/1980 | US4209322 Pelletization, reduction |
| 06/24/1980 | US4209321 Method for melting machine chips |
| 06/24/1980 | CA1079978A1 Method for agglomerating wet-collected fume for use in metallurgical furnaces and agglomerates produced thereby |
| 06/17/1980 | US4208041 Metallurgical apparatus |
| 06/10/1980 | US4207138 Mercury vapor leaching from microelectronic substrates |
| 05/13/1980 | CA1077441A1 Method for enhancing artificially magnetic separation of minerals by the use of preconditioning reagents |
| 05/06/1980 | US4201573 Using the slag as an agitation medium |
| 04/30/1980 | EP0010367A1 Method of recovering metal values |
| 04/30/1980 | EP0010365A1 Treatment of zinc plant leach residues for recovery of the contained metal values |
| 04/29/1980 | CA1076364A1 Process for concentrating and recovering gallium |
| 04/29/1980 | CA1076362A1 Process for the recovery of vanadium and molybdenum |
| 04/22/1980 | CA1075899A1 Device for limiting surface oxidation of glowing hot metal dross |
| 04/16/1980 | EP0010047A1 Process for treating waste gases of the iron and steel industry |
| 04/15/1980 | US4198231 Recovery and separation of gadolinium and gallium |
| 04/15/1980 | CA1075471A1 Method of treating molten slags in steel-making process |
| 04/15/1980 | CA1075469A1 Process for pyrometallurgical recovery of iron from iron silicate slags |
| 03/11/1980 | US4192853 Method for processing wastes resulting from production of phosphorus |
| 03/04/1980 | US4191559 Passing fluxing gas therethrough |
| 03/04/1980 | CA1072743A1 Separation of three metallurgical phases by decantation |
| 03/04/1980 | CA1072742A1 Method for preparing dry-collected fume for use in steelmaking furnaces |
| 02/19/1980 | CA1071843A1 Process for recovering titanium values from slag containing such values |
| 02/12/1980 | CA1071413A1 Process for recovering vanadium from deactivated catalysts |
| 02/06/1980 | EP0007856A1 Process for recovering the metals contained in plumbiferous and zinciferous oxidic compounds |
| 02/06/1980 | EP0007662A1 Removal of zinc and lead from materials containing iron oxide by the rotary-kiln volatilizing process |
| 01/22/1980 | CA1070266A1 Recovery of metallic lead, lead compounds and plastic material from scrap storage batteries |
| 01/15/1980 | CA1069704A1 Extraction and purification of silver |
| 01/09/1980 | EP0006101A1 Process for chrome recovery from industrial waste and the like |
| 01/08/1980 | US4182498 Recovery of round metal granules from process sludge |
| 12/25/1979 | CA1068487A Method of recovering the constituents of catalysts comprising an aluminous carrier, platinum and iridium |
| 12/12/1979 | EP0005877A2 Process for decomposing hard metal scrap |
| 12/04/1979 | US4177064 Enhanced oil recovery |
| 12/04/1979 | US4177063 Method and apparatus for reducing metal oxide |
| 12/04/1979 | US4177062 By contacting with hot slag and falshing off the oil |
| 11/06/1979 | US4173467 Process for recovering valuable metals from superalloy scrap |
| 10/17/1979 | EP0004778A2 Process for the treatment of incinerated sewage sludge ash |
| 10/09/1979 | US4170513 Recovery of tungsten carbide from scrap mining bits |
| 09/18/1979 | US4168156 Method of and electric furnace for processing nonferrous molten slags |
| 09/18/1979 | US4168155 Process for smelting lead refinery dross |
| 09/18/1979 | CA1062471A1 Process for controlled slow cooling of non-ferrous smelting slags |
| 09/04/1979 | CA1061567A1 Pyrometallurgical process for lead refining |
| 08/28/1979 | CA1061283A1 Process for removing copper from copper anode slime |
| 08/14/1979 | CA1060217A1 Process for separating nickel, cobalt and copper |
| 08/14/1979 | CA1060216A1 Treatment of aluminous material |
| 08/08/1979 | EP0003464A1 Process for the utilization of lead and zinc present in the mud resulting from the secundary scrubbing of blast furnace exhaust gases |
| 08/07/1979 | CA1059771A1 Hydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copper |
| 08/07/1979 | CA1059770A1 Hydrometallurgical treatment process for extracting constituent metal values from ferro-nickel |
| 07/31/1979 | USRE30060 Drying, fracturing, balling |
| 07/31/1979 | US4163046 Recovery of selenium |
| 07/31/1979 | US4162916 Process for the treatment of complex metal ores containing, in particular, manganese and copper, such as oceanic nodules |
| 07/31/1979 | US4162891 Scrap preheater modular roof assembly |
| 07/24/1979 | US4162294 Chromium, aluminum, copper, zinc and nickel |
| 07/10/1979 | US4160867 Method and apparatus for melting machining chips |
| 07/03/1979 | US4159907 Method for melting aluminum scraps |
| 07/03/1979 | CA1057510A1 Process for treating sulfidic complex and mixed ores, concentrates and technical precipitates |
| 06/27/1979 | EP0002497A1 Process for treating used ammoniacal copper-etching solutions |
| 06/26/1979 | US4159310 Process for recovering aluminum and other metal values from fly ash |
| 06/26/1979 | CA1057260A1 Process for producing shaped bodies |
| 06/19/1979 | US4158701 Pyrohydrolysis system for processing fluorine-containing spent and waste materials |
| 06/12/1979 | US4157942 Method for recovery of metals from metal plating baths and neutralizing toxic effluents therefrom |
| 05/29/1979 | US4156452 Furnaces |
| 05/29/1979 | CA1055553A1 Extended arc furnace and process for melting particulate charge therein |
| 05/08/1979 | US4153669 Removal of metals from waste materials that contain bimetallic salt complexes |
| 05/08/1979 | US4153452 Recovery of metals from bimetallic salt complexes |
| 04/24/1979 | US4151257 Chlorination, oxidation, sulfation, solvent extraction, precipitation, ion exchanging, complexing |
| 04/17/1979 | US4149945 Electrowinning cementation |
| 04/17/1979 | US4149898 Decomposition of smelted metallurgical slag by ultrasonic or high frequency vibration |
| 04/17/1979 | US4149880 Smelter flue dusts and refinery wastes; leaching with sulfuric acid, solubilizing, precipitating toxins, cementation on iron |
| 04/10/1979 | US4148862 Hydrometallurgical treatment of soluble silicate-bearing zinc materials |
| 04/10/1979 | US4148698 Refining of ferrous and base metal sulphide ores and concentrates |
| 03/20/1979 | US4145397 Process for recovering molybdenum, vanadium, cobalt and nickel from roasted products of used catalysts from hydrotreatment desulfurization of petroleum |
| 03/13/1979 | US4144314 Process for regenerating water-containing methanol |
| 03/13/1979 | US4144148 Method and apparatus for treating metal containing waste waters |
| 02/27/1979 | CA1049267A1 Method of reclaiming nickel values from a nickeliferous alloy |
| 02/20/1979 | CA1048789A1 Process for extracting metals from spent desulphurization catalysts |
| 02/13/1979 | US4139460 Reduction with metal sulfide |
| 02/13/1979 | CA1048279A1 Process for the recovery of metallics from brass skimmings |
| 02/13/1979 | CA1048277A1 Recovery of pt/rh from car exhaust catalysts |
| 02/07/1979 | EP0000665A1 Rhodium recovery from hydroformylation still heel with triaryl phosphate ligand |
| 02/06/1979 | US4138249 Process for recovering valuable metals from superalloy scrap |
| 01/23/1979 | US4135911 Rhodium recovery from hydroformylation still heel with triaryl phosphite ligand |
| 01/16/1979 | US4134755 Method for removing zinc type metals and compounds in dust recovery process in iron manufacture |
| 01/16/1979 | CA1046289A1 Hydrometallurgical treatment of nickel and copper bearing intermediates |
| 01/09/1979 | CA1045831A2 Metallurgical process using oxygen |
| 01/09/1979 | CA1045830A2 Metallurgical process using oxygen |
| 01/02/1979 | US4132569 Ruthenium recovery process |
| 12/26/1978 | US4131451 Method for removing zinc from zinc-containing slags |