| 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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| 02/21/1984 | US4432950 Recovery of refractory metal values from scrap cemented carbide |
| 02/21/1984 | US4432949 Precipitating vanadium by cooling, extraction of nickel with hydroxyoxime, cobalt with oximes, dioximes, or diketones, and molybdenum and tungsten with tertiary amine |
| 02/16/1984 | WO1984000562A1 Method of recovering metals from metal containing materials |
| 02/14/1984 | CA1162054A1 Process for the recovery of platinum group metals from refractory ceramic substrates |
| 01/31/1984 | US4428912 From chlorination of aluminum in clay or bauxite |
| 01/31/1984 | US4428773 And ammonia-free solution |
| 01/31/1984 | US4428771 Selective absorption in solid or liquid |
| 01/31/1984 | US4428768 Process for the recovery of platinum group metals from refractory ceramic substrates |
| 01/24/1984 | US4427629 Adding alkalimetal-desired metal inter-metallic as refining dross |
| 01/17/1984 | US4426251 Portable gold recovery apparatus and method for using same |
| 01/17/1984 | US4426225 From scrap printed circuit boards, etching |
| 01/11/1984 | EP0097842A2 Process for recovering noble metals from solutions |
| 01/10/1984 | US4425228 Wet-classifying method for recovery of carbon and iron-bearing particles |
| 01/10/1984 | CA1160059A1 Method and installation for scrubbing the flues for recovering the salts in a process for the production of secondary aluminum |
| 01/10/1984 | CA1160055A1 Method for the recovery of valuable metals from finely-divided pyrite |
| 12/28/1983 | EP0097144A1 Process for separating non ferrous metals from residues containing iron oxide |
| 12/27/1983 | US4422872 Method of heating, melting, and coal coversion and apparatus for the same |
| 12/20/1983 | CA1158866A1 Separation of aluminum from articles composed of aluminum bonded to ferrous metal |
| 12/13/1983 | CA1158444A1 Metal recovery process |
| 12/06/1983 | US4418460 Method and apparatus for separating a lid from a container |
| 11/30/1983 | EP0095358A1 Method of recovering metal values from superalloy scrap |
| 11/29/1983 | CA1157662A1 Partitioning of refractory metals from oxidation resistant scrap alloy |
| 11/23/1983 | EP0094510A1 Apparatus for the pelletization of heat-liquifiable solid materials (stacked rotor) |
| 11/22/1983 | CA1157279A1 Process and device for hydrometallurgical treatment of metallurgical dust |
| 11/16/1983 | EP0094114A1 Method for treating blast furnace gas and apparatus for carrying out that method |
| 11/15/1983 | US4415360 Method for working-up metal-containing waste products |
| 11/15/1983 | CA1156953A1 Lime addition to heavy crude oils prior to coking |
| 11/15/1983 | CA1156952A1 Formation of coke from heavy crude oils in the presence of calcium carbonate |
| 11/09/1983 | EP0093339A2 Process for the treatment of red mud |
| 11/08/1983 | US4414016 Apparatus for the pelletization of heat-liquifiable solid materials |
| 11/01/1983 | US4412860 Melting with tin, solidifying, dissolving uranium with hydrochloric acid |
| 11/01/1983 | US4412859 Method for recovering platinum in a nitric acid plant |
| 11/01/1983 | CA1156052A1 Recovery of metal values |
| 10/18/1983 | US4410496 Recovery of metal values from complex sulfides |
| 10/18/1983 | US4410423 Separation of spent cathode carbon and alkaline ore |
| 10/18/1983 | US4410361 Method for desilverizing and removal of other metal values from lead bullion |
| 10/18/1983 | US4409740 Yellowcake (U3 O8) dust, water and heat recovery process and apparatus |
| 10/11/1983 | US4409190 Extracting cobalt from spent hydroprocessing catalysts with cyanide |
| 10/11/1983 | US4409020 Recovery of metals from grinding sludges |
| 10/11/1983 | CA1154971A1 Method for working-up arsenic-containing waste products |
| 10/04/1983 | CA1154599A1 Hydrometallurgical processing of precious metal-containing materials |
| 09/27/1983 | US4406696 Process for recovering of metals from solutions of metal salts |
| 09/27/1983 | CA1154265A1 Precious metals recovery process |
| 09/20/1983 | US4405572 Recovery of molybdenum |
| 09/20/1983 | US4405571 Process for selective dissolution of molybdenum in the presence of tungsten |
| 09/13/1983 | US4404027 Method of recovering heavy metals |
| 09/13/1983 | US4404022 For froth flotation of precious metals |
| 09/06/1983 | US4402738 Method and apparatus for incinerating self-burning wastes |
| 09/06/1983 | US4402491 Apparatus for reclaiming lead and other metals |
| 09/01/1983 | WO1983002958A1 Method and apparatus for submerging, entraining, melting and circulating metal charge in molten media |
| 08/31/1983 | EP0086841A1 Process for recovering silver and photosensitive material base from photosensitive material by utilizing microorganism |
| 08/30/1983 | US4401631 Process for the recovery of molybdenum from mixtures of molybdenum compounds with other metallic compounds |
| 08/30/1983 | US4401463 Process for the recovery of metals from the scrap from nickel-cadmium electric storage batteries |
| 08/30/1983 | CA1152756A1 Process and apparatus for recovering precious metals from bimetallic materials |
| 08/30/1983 | CA1152751A1 Vortex melting system |
| 08/16/1983 | US4398956 Spherical fly ash particles |
| 08/09/1983 | US4397690 Process for recovering gold |
| 08/02/1983 | US4396424 Utilizing heat obtained by reoxidizing the ferrous oxide |
| 08/02/1983 | US4396423 Carbiding iron |
| 07/26/1983 | US4394978 Grinding and separation into powders of metal and metal oxide |
| 07/26/1983 | CA1150518A1 Recovering non-volatile metals from dust containing metal oxides |
| 07/20/1983 | EP0083615A1 A method for separating metals from alloys |
| 07/12/1983 | US4392889 Hot caustic bath |
| 06/29/1983 | EP0082279A1 Method and apparatus for granulating slag |
| 06/21/1983 | US4389248 Method of recovering gold from anode slimes |
| 06/14/1983 | CA1147969A1 Recovery of chromium from scrap |
| 06/07/1983 | US4386956 Metal recovery process from aluminum dross |
| 06/07/1983 | US4386764 Apparatus for submerging, entraining, melting and circulating metal charge in molten media |
| 06/07/1983 | CA1147801A1 Method and machine for recovering material from consumed accumulator batteries |
| 06/07/1983 | CA1147558A1 Method of recovering volatile metals from material containing metal oxides |
| 05/31/1983 | US4386057 Reacting magnetic fly ash with alkali to precipitate aluminosilicate hydrate salts soluble with mineral acid |
| 05/31/1983 | US4385915 Removal of germanium from the effluent of processes for the production of optical components |
| 05/24/1983 | US4384885 Process for the recovery of metals from catalysts |
| 05/24/1983 | US4384683 Crushing, rinsing, concurrent low-temperature drying and crushing; classifying particle sizes |
| 05/18/1983 | EP0079179A1 Dore slag treatment |
| 05/10/1983 | CA1145948A1 Process for a sulfidizing pretreatment of the slag of pyrometallurgical processes in order to facilitate its further treatment |
| 05/04/1983 | EP0078154A2 Plasmids and cells for heterologous expression of metallothioneins and processes for producing and using the metallothionein |
| 05/03/1983 | US4382068 Method for selective recovery of molybdenum and vanadium values from spent catalysts |
| 04/20/1983 | EP0077190A2 Method and apparatus for the smelting and fuming of tin concentrates |
| 04/20/1983 | EP0077121A2 Method for recovering platinum in a nitric acid plant |
| 04/12/1983 | US4379718 Process for separating solid particulates from a melt |
| 04/06/1983 | EP0075979A2 Process for the disassembling of scrap alkaline electric storage batteries |
| 04/06/1983 | EP0075978A2 Process for the recovery of metals from the scrap from nickel-cadmium electric storage batteries |
| 04/06/1983 | EP0075971A2 Process for preparing slag from aluminium melts |
| 04/05/1983 | CA1143952A1 Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons |
| 04/05/1983 | CA1143950A1 Silver recovery method and apparatus |
| 04/05/1983 | CA1143940A1 Device for th vibration of slags |
| 03/23/1983 | EP0074871A1 Process for the physical separation of the metallic phase from the slag in an induction furnace |
| 03/22/1983 | US4377410 Sulfiding |
| 03/22/1983 | CA1143166A1 Recovery of nickel and other metallic values from waste |
| 03/08/1983 | US4376043 Process of treating dust containing zinc and lead and derived in an iron or steel making process |
| 03/08/1983 | US4375984 Recovery of gold from bromide etchants |
| 03/08/1983 | CA1142325A1 Process for the removal of metals from carbon black |
| 03/03/1983 | WO1983000630A1 Process for recovering silver and photosensitive material base from photosensitive material by utilizing microorganism |
| 02/22/1983 | US4374499 Treatment during transport of solid waste |
| 02/16/1983 | EP0071602A1 Method and apparatus for handling flux fines |
| 02/15/1983 | US4374098 Method of concentrating silver from anode slime |
| 02/08/1983 | US4372782 Recovery of lead and silver from minerals and process residues |
| 02/08/1983 | US4372780 Process for recovery of metals contained in plombiferous and/or zinciferous oxide compounds |
| 01/26/1983 | EP0070819A1 A method for working-up metal-containing waste products |