Patent application number | Description | Published |
20080307960 | Air Pollutant Removal Using Magnetic Sorbent Particles - Absorbent magnetic particles are used to remove air pollutants. The adsorbent magnetic particles can adsorb various air pollutants, including nitrogen oxides, sulfur oxides, and mercury, and may be regenerated for reuse. | 12-18-2008 |
20090117265 | ROAD AND REPAIR MATERIALS INCLUDING MAGNETITE AND METHODS REGARDING SAME - A road and repair system and/or method using one or more components including a plurality of magnetite concentrate particles, at least one acidic activator including phosphate anions, and a plurality of reactive aggregate particles including iron. | 05-07-2009 |
20120119424 | SYSTEM AND METHOD FOR PRODUCING METALLIC IRON - A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier. | 05-17-2012 |