| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
|---|
| 02/14/1978 | US4073641 Selective reduction of nickel ore with a low nickel content |
| 02/07/1978 | US4072507 Production of blister copper in a rotary furnace from calcined copper-iron concentrates |
| 01/17/1978 | US4069295 Treating raw materials containing titanium components |
| 01/17/1978 | US4069294 Hydrometallurgical recovery of metal values |
| 01/17/1978 | US4069041 Multistage sulfatizing |
| 01/10/1978 | US4067953 Process for upgrading ores containing baddeleyite |
| 01/10/1978 | US4067727 Sintering process |
| 01/03/1978 | US4066734 Oxidation |
| 12/27/1977 | US4065299 Magnesium reclamation process and apparatus |
| 12/27/1977 | US4065295 Automatic |
| 12/27/1977 | US4065294 Energy conserving process for purifying iron oxide |
| 12/27/1977 | US4065105 Fluidizing means for reducing viscosity of slurries |
| 12/20/1977 | US4063944 Coke, cement, iron oxide, ferrous scrap metal |
| 12/20/1977 | US4063930 Preparation of weatherable ferrite agglomerate |
| 12/13/1977 | US4062675 Ore treatment involving a halo-metallization process |
| 11/29/1977 | US4060408 Melting process |
| 11/29/1977 | US4060356 Apparatus for making beads |
| 11/22/1977 | US4059506 Ore tailings treatment |
| 11/15/1977 | US4058396 Molten alkali metal carbonate |
| 11/15/1977 | US4057978 Apparatus for cooling pellets |
| 11/08/1977 | US4057422 Extraction, dehydration, sulfiding, oxidation, precipitation |
| 10/25/1977 | US4055390 Rotary kiln |
| 10/11/1977 | US4053301 Process for the direct production of steel |
| 10/04/1977 | US4052196 Method and apparatus of moistening charge material for an ore-dressing plant |
| 09/27/1977 | US4051213 Process for pressing briquettes from fine-grained fluorspar and pressed briquettes thus obtained |
| 09/27/1977 | US4050924 Process of controlling Fe++ content of sintered iron ore |
| 09/20/1977 | US4049770 Recovery of copper and zinc as sulfides from copper-iron sulfides |
| 09/20/1977 | US4049445 Method for thermal treatment of nickel ore |
| 09/20/1977 | US4049435 Method for obtaining a lump product |
| 09/20/1977 | US4049385 Graphite shell and tube |
| 09/13/1977 | US4047939 Leaching, sulfuric acid |
| 09/13/1977 | US4047556 Continuous casting method |
| 09/06/1977 | US4046853 From iron containing titaniferous ore |
| 08/23/1977 | US4044094 Two-stage fluid bed reduction of manganese nodules |
| 08/23/1977 | US4043831 Densification of coal fly ash |
| 08/23/1977 | US4043758 Apparatus for the manufacture of metallic chlorides |
| 08/16/1977 | US4042664 Method for separating metal constituents from ocean floor nodules |
| 08/16/1977 | US4042375 Roasting process for the direct reduction of ores |
| 08/16/1977 | US4042353 Method and apparatus for filtering through particulate material |
| 08/02/1977 | US4039466 Polyoxyalkylene groups, sulfonic, sulfate, phosphate groups |
| 07/26/1977 | US4037303 Method for the briquetting of metal swarf, pellets, and powders with roller presses |
| 07/12/1977 | US4034969 Oxidation roasting of ore |
| 07/05/1977 | US4033559 Apparatus for continuous passivation of sponge iron material |
| 06/28/1977 | US4032352 Binder composition |
| 05/31/1977 | US4026672 Plant for fluidized bed heat treatment of powdered alunite |
| 05/17/1977 | US4023960 Process for cleaning waste gases from sintering plants |
| 05/17/1977 | US4023959 Method for recovering vanadium from magnetite and forming a magnetite product low in sodium and silica |
| 05/10/1977 | US4022638 Continuous recovery of base metal from insulated wire scrap |
| 04/26/1977 | US4019898 Leaching with hydrochloric acid |
| 04/12/1977 | US4017061 Conveyor tube for a particulate heating furnace |
| 04/05/1977 | US4016003 Beneficiation of metal scrap |
| 04/05/1977 | US4015978 Method for production of magnesium-containing briquets and magnesium |
| 04/05/1977 | US4015977 Alkali metal silicate binder, refractory metal oxide |
| 03/22/1977 | US4013273 Method of, and mixer for intimate blending of fine, dry, particulate solid materials with moist wet or slurried particulate solid materials |
| 03/08/1977 | US4011146 Process for separation and recovery of metal values from sulfide ore concentrates |
| 03/01/1977 | US4010236 Manganese ore reduction |
| 02/01/1977 | US4006010 Production of blister copper directly from dead roasted-copper-iron concentrates using a shallow bed reactor |
| 02/01/1977 | US4005987 Iron sulfate |
| 01/25/1977 | US4004918 Kneading sludge cakes, binders, reduction |
| 01/25/1977 | US4004916 Method for agglomerating wet-collected fume for use in metallurgical furnaces and agglomerates produced thereby |
| 01/18/1977 | US4003737 Method of agglomerating with additives in the bridging liquid |
| 01/18/1977 | US4003736 Method for preparing dry-collected fume for use in metallurgical furnaces |
| 01/18/1977 | US4003717 Method and apparatus for recovering by-product silt fines from a slurry thereof |
| 01/11/1977 | US4002462 Ore beneficiation method and apparatus |
| 01/04/1977 | US4001011 Pyrometallurgical recovery of iron from iron silicate slags |
| 01/04/1977 | US4001007 Material for sintering emitting a lesser amount of nitrogen oxide and a method for manufacturing the same |
| 01/04/1977 | US4000859 Two-piece hammer |
| 01/04/1977 | US4000822 Reclaimer to reclaim blending beds, storage beds and the like |
| 12/21/1976 | US3998929 Fluidized bed process |
| 12/21/1976 | US3998926 Treatment of material with hydrogen chloride |
| 12/14/1976 | US3997359 Reclamation of components from grinding swarf |
| 12/07/1976 | US3995987 Heat treatment of particulate materials |
| 11/23/1976 | US3993472 Heating, steaming |
| 11/23/1976 | US3993471 Roasting powdered mineral ore, anthracite and binder |
| 11/16/1976 | US3991987 Rotary kiln and hearth furnace |
| 11/09/1976 | US3990965 Aminoplast or phenoplast polymer |
| 11/09/1976 | US3990885 Process for recovering hydrocarbons and heavy minerals from a tar sand hot water process waste stream |
| 10/19/1976 | US3986864 Method for briquette breaking |
| 10/05/1976 | US3984230 Piercing bed before ignition |
| 10/05/1976 | US3984229 Method for producing coarse powder, hardened iron oxide material from finely divided raw material substantially consisting of hematite and/or magnetite |
| 10/05/1976 | US3984090 Metal recovery method |
| 10/05/1976 | US3983931 Method and apparatus for transferring heat to or from material |
| 09/21/1976 | US3981963 Iron chloride activated oxidation of sulfide ores |
| 09/14/1976 | US3980466 Method of operating a shaft furnace for the production of sintered iron ore pellets |
| 09/14/1976 | US3980465 Process for producing iron ore oxidized pellets from magnetite concentrate |
| 09/07/1976 | US3979205 Metal recovery method |
| 08/17/1976 | US3975185 Particulate emissions reduction in sintering operations |
| 08/17/1976 | US3975183 Use of alkali metal silicates to reduce particulate emissions in sintering operations |
| 08/17/1976 | US3975182 Iron oxide |
| 08/10/1976 | US3973762 Sintering process and apparatus |
| 08/03/1976 | US3973061 Method for the preparation of porous ferrous metal impregnated with magnesium metal |
| 08/03/1976 | US3972411 Method of feedig green pellets onto grate of pretreatment furnace in the production of reduced pellets |
| 07/27/1976 | US3971712 Process for removing sulfur impurities from a fluid by contact with silver articles |
| 07/13/1976 | US3969103 Method of producing ball agglomerated particulate material |
| 06/29/1976 | US3966456 Reduction of iron oxides |
| 06/29/1976 | US3966427 Production of briquettes |
| 06/22/1976 | US3964901 Multistage |
| 06/22/1976 | US3964599 Process and apparatus for the controlling of the conveyance of loose bulk material |
| 06/15/1976 | US3963481 Process for cooling sinter on the strand |
| 06/08/1976 | US3961941 Method of producing metallic lead and silver from their sulfides |