Global ETD Search
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Showing 1 to 3 of 3 for “"superclean"”.
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Surface chemical aspects of microbubble flotation
… the ability of microbubble flotation to superclean coal to ash levels of less than 2%, several Eastern U. S. coals have been tested. The results show that the process is capable of producing superclean coal with improved recovery as compared to the conventional flotation process.To …
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The effect of particle size distribution on the rheology of ultrafine coal-water slurries
Recent interest in producing superclean coal has lead to the development of coal cleaning techniques which require the grinding of coal to sizes below 10 microns. Coal in this size range has inherent material handling problems, most of which can be eliminated by the utilization of this ultrafine …
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An evaluation of separation methods for the selective coagulation of ultrafine coal
A novel technique for selectively coagulating and separating coal from dispersed mineral matter has been developed at Virginia Tech. The process, which is known as Selective Hydrophobic Coagulation (SHC), differs from oil agglomeration, shear or polymer flocculation, and electrolytic coagulation …