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Showing 1 to 2 of 2 for “"Low-Ash Coal"”.
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The liberation characteristics of Greenside No. 2 seam coal
… ever increasing quantities of fine (-0,5 mm) coal are being produced as a result of the increased use of mechanised mining methods. Very few mines beneficiate the fines; in most cases they are discarded. However the fine size of this material suggests that it should be well liberated, with the …
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The Production of Low Ash Coals Using the Hydrophobic-Hydrophilic Separation Process with Novel Developments
… and contributes to a substantial amount of coal waste in impoundments. An impoundment is a dam built using coarse reject to hold fine reject in slurry. Because of the land-use and risk of an impoundment failure, these impoundments pose an environmental liability. To address ultrafine coal …