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| Number | Title | Issue Date |
| 7789123 | Sequence casting process for producing a high-purity cast metal strand The invention relates to a sequence casting process for producing a high-purity cast metal strand from a metal melt, the metal melt being fed in controlled fashion from a metal vessel to a tundish and being discharged in controlled fashion from this tundish into a c... | 09/07/2010 |
| 7698893 | Pressure-medium cylinder with pressure intensification For many applications pressure-medium cylinders have to achieve high adjusting forces which often impairs the dynamics of such cylinders due to the large piston cross sections and cylinder volumes, and/or pressure medium has to be supplied at very high pressure. The... | 04/20/2010 |
| 7600397 | Process and installation for granulating slag In a process for granulating slag, from a blast furnace or a smelting reduction plant, in which a granule/water mixture formed during the granulation is fed to a granulation tank and then to a dewatering installation, in which the slag granules are dewatered. H... | 10/13/2009 |
| 7597739 | Method for reducing a particulate material containing a metal, especially iron ore In a process for reducing iron-ore-containing particulate material in at least a two-stage process, reducing gas is conducted through at least two reaction zones consecutively arranged in series and formed by a moving particulate material and the particulate materia... | 10/06/2009 |
| 7591300 | Process for producing a cast metal strip, and two-roll casting device used for this process The invention relates to a method for producing a cast metal strip using a twin roll casting installation comprising two casting rolls and two lateral plates that together define a molten metal chamber and a casting gap. Molten metal is introduced in to the molten m... | 09/22/2009 |
| 7513729 | Method and device for distributing a lumpy bulk material The invention relates to an apparatus and a process for distributing a lumpy bulk material, in particular iron ore which has been at least partially prereduced, onto an extensive surface, in particular onto a fixed bed, this surface extending within a reactor or ves... | 04/07/2009 |
| 7470310 | Method and device for producing a static bed Apparatus and process for producing a fixed bed in a metallurgical unit, preferably for producing pig iron or primary steel products from iron-containing charge materials, in particular in a melted gasifier, in which a lumpy bulk material, which contains ore-contain... | 12/30/2008 |
