| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
|---|
| 09/15/1988 | DE3727576C1 Process for reprocessing fine-grained ferrous by-products from steelworks and metallurgical works to form lumpy material for use in blast furnaces |
| 09/07/1988 | CN87108122A Method for roasting ores into ball agglomeration |
| 09/06/1988 | US4769211 Passibating sponge iron against o2; minimizing metallization losses; homogenizing and precompression separating via rollers; bending to break at set points |
| 08/30/1988 | US4767449 Process for agglomerating ore concentrate utilizing clay and dispersions of polymer binders or dry polymer binders |
| 08/25/1988 | WO1988006227A1 Apparatus for recovering waste heat of sintering |
| 08/23/1988 | US4765829 Treating lead- and zinc-containing steelmaking byproducts |
| 08/18/1988 | DE3703777A1 Process and device for liquid withdrawal from particle-laden liquids, in particular for dewatering suspensions or sludges and use of the process |
| 08/17/1988 | EP0278328A1 Process for extracting heavy metals from polluted soils, and device for counter-current extraction in such a process |
| 08/03/1988 | EP0277018A2 Water absorbing polymers |
| 08/03/1988 | EP0277017A2 Coal compositions and their production |
| 08/02/1988 | CA1239798A1 Process for recovering valuable metals from an iron dust containing a higher content of zinc |
| 07/27/1988 | EP0275863A1 Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous |
| 07/27/1988 | EP0275816A1 Process for the treatment of finely divided steel waste material |
| 07/19/1988 | US4758406 Molybdenum addition agent and process for its production |
| 07/19/1988 | US4758268 Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous |
| 07/13/1988 | EP0274187A2 Improvements in or relating to the fluidised-bed roasting of sulphide minerals |
| 07/13/1988 | EP0274059A2 Process for the recycling of electrical batteries, assembled printed circuit boards and electronic components |
| 07/13/1988 | CN85105934B Technology and equipment of fluidized roasting by oxygen-poor reduction |
| 07/12/1988 | US4756745 Process to benefit colemanite and/or howlite minerals |
| 07/12/1988 | CA1239020A1 Method for recovering zinc from substances containing a zinc compound |
| 07/05/1988 | CA1238789A1 Process for the extraction of platinum group metals |
| 06/29/1988 | EP0272465A1 Process and device for the separation and/or reaction of particles |
| 06/22/1988 | EP0271863A2 Method for manufacturing agglomerates of fired pellets |
| 06/22/1988 | CN87107380A Desulfurization of gypsum |
| 06/16/1988 | WO1988004476A1 Process for the recycling of electrical batteries, assembled printed circuit boards and electronic components |
| 06/15/1988 | EP0271160A1 Process for obtaining solid granules from compact mineral sludges |
| 06/14/1988 | US4751259 Compositions for iron ore agglomeration |
| 06/07/1988 | CA1237582A1 Method of producing unbaked agglomerates |
| 05/31/1988 | US4747547 Crushing, specific gravity separation |
| 05/25/1988 | EP0268000A1 Sintering plant |
| 05/19/1988 | DE3637981A1 Process and apparatus for producing highly porous shaped parts |
| 05/11/1988 | EP0267170A1 Treatment of middlings |
| 05/11/1988 | EP0267031A1 Desulfurization of gypsum |
| 05/10/1988 | CA1236307A1 Method of reducing hydrocarbon emissions occurring during iron ore sintering operations |
| 04/20/1988 | CN86105982A Recovery of copper, gold and silver by vulcanizing-roasting at law temperature-ore dressing |
| 04/12/1988 | CA1234991A1 Recovery of gold from auriferous refractory iron- containing sulphidic ore |
| 04/07/1988 | WO1988002408A1 Method of concentration of difficult-to-concentrate oxidized copper ore |
| 04/05/1988 | CA1234792A1 Separation of minerals |
| 03/22/1988 | US4732827 Process for producing electrolyte for redox cell |
| 03/22/1988 | US4732561 Apparatus for cooling hot material |
| 03/10/1988 | DE3629228A1 Process for producing mouldings from ores and carbonaceous material |
| 03/01/1988 | US4728537 Water-soluble polymeric binder |
| 02/24/1988 | EP0256233A2 Process for producing spherical powder particles |
| 02/23/1988 | US4726895 Process for concentration of gold and uranium magnetically |
| 02/18/1988 | DE3621836A1 Treatment process for oil-contaminated solid wastes (for example oil binders, filters, cleaning rags) |
| 02/09/1988 | US4723995 Method for continuously manufacturing fired pellets |
| 02/02/1988 | US4722750 Agglomerated ores and a producing method therefor |
| 01/28/1988 | EP0236480A4 Production of hydrogen by deserpentinization of ultramafic rock. |
| 01/26/1988 | US4721457 Method and apparatus for cleaning and drying metal chips |
| 01/20/1988 | EP0253596A1 Process for drying swarf or other small items contaminated with volatile substances |
| 01/19/1988 | CA1231535A1 Process for the chlorination of oxidic materials |
| 01/14/1988 | WO1988000248A1 Separation process |
| 01/13/1988 | EP0252698A1 Process for agglomeration of oxidic and metallic solids |
| 12/29/1987 | US4715810 Process and apparatus for removing volatiles from metal |
| 12/16/1987 | EP0053139B1 Agglomerates, a process for producing thereof and use thereof |
| 12/08/1987 | US4711863 Immobilized extractants |
| 12/08/1987 | US4711662 Stirring with water vapor generated by cecomposing silicate minerals; reducing agent, recovering metals for reuse |
| 12/03/1987 | WO1987007362A1 Method and apparatus for drying metal chips |
| 12/01/1987 | US4710126 Method and apparatus for drying metal chips |
| 11/24/1987 | US4708640 Apparatus for batch preparation and feeding into the smelting process |
| 11/10/1987 | US4705562 Method for working-up waste products containing valuable metals |
| 11/10/1987 | US4705474 Method and apparatus for batch preparation and feeding into the smelting process |
| 10/27/1987 | US4702768 Compaction, controlled rate of addition to melt |
| 10/22/1987 | DE3612553A1 Method for processing domestic and industrial wastes to form recycled products |
| 10/21/1987 | EP0241670A1 Method and apparatus for removing hardly evaporable hydrocarbons from fine granular material |
| 09/29/1987 | CA1227336A1 Metal recovery process |
| 09/29/1987 | CA1227333A1 Treatment of pelletised iron ores |
| 09/24/1987 | WO1987005635A1 Process and apparatus for introducing metal chips into a molten metal bath thereof |
| 09/22/1987 | US4695315 Method of minimizing reduction disintegration of iron ores and iron ore agglomerates to be used as blast furnace burden |
| 09/22/1987 | CA1227041A1 Method for recovering metal values from materials containing copper and/or precious metals |
| 09/22/1987 | CA1227039A1 Method of producing an ore pellet |
| 09/16/1987 | EP0236480A1 Production of hydrogen by deserpentinization of ultramafic rock. |
| 08/25/1987 | US4689007 Process of thermally treating lump or agglomerated materials on a travelling grate |
| 08/19/1987 | CN86101034A Process of high temp. chlorizing calcination for lean tin complex feedstock |
| 08/11/1987 | US4685963 Process for the extraction of platinum group metals |
| 08/04/1987 | US4684549 Anionic addition polymer |
| 07/14/1987 | CA1224046A1 Process for preparing silicium-based complex ferroalloys |
| 07/07/1987 | USRE32454 Process for desulfurization of coal and ores |
| 07/07/1987 | US4678647 Process for the recovery of gallium and germanium from coal fly ash |
| 07/02/1987 | DE3546261A1 Reduction of ores, with simultaneous gas generation |
| 06/30/1987 | US4676742 Preheater for reverberatory melting furnaces |
| 06/19/1987 | DE3544240A1 Method for processing fragmented wastes contaminated with fats or oils |
| 06/16/1987 | US4673431 Furnace dust recovery process |
| 06/16/1987 | CA1222868A1 Method and apparatus for changing the pallets of a sinter machine |
| 06/10/1987 | EP0225171A2 Iron ore pelletisation |
| 06/10/1987 | EP0125305B1 Process for minimizing the reduction disintegration of iron ores and iron ore agglomerates to be used as blast furnace burden |
| 06/10/1987 | CN86106147A Production of elements and compounds by deserpentinization of ultramafic rock |
| 06/03/1987 | EP0224343A1 Dross cooling |
| 06/02/1987 | US4670240 Uniform particle size mixture of reducing carbon, phosphate ore and silica rock |
| 06/02/1987 | US4670228 Mixing with sulfur compound, combusiton, extraction |
| 06/02/1987 | US4669667 Nozzle for spraying a liquid into a vessel opening |
| 06/02/1987 | CA1222380A1 Method for processing copper smelting materials and the like containing high percentages of arsenic and/or antimony |
| 05/13/1987 | EP0221797A1 Ignition process of an ore bed at its sintering |
| 05/06/1987 | EP0220853A2 System for recovery of salvageable ferrous and non-ferrous metal components from incinerated waste materials |
| 05/05/1987 | US4662570 Apparatus for processing refuse to produce steel-making scrap |
| 04/29/1987 | EP0219745A1 Heated goods cooling device |
| 04/28/1987 | US4661118 Method for oxidation of pyrite in coal to magnetite and low field magnetic separation thereof |
| 04/22/1987 | CN86106355A Vartex fluidization baking decomposition equipment |
| 04/21/1987 | US4659374 Coal tar pitch, asphalt, petroleum pitch with lignosulfonate salts, carbohydrates or silicates; high strength |
| 04/14/1987 | US4657584 Effect of MgO source on sinter properties |