Fuel and related compositions – Coal treating process or product thereof
Patent
1993-12-21
1995-07-25
Medley, Margaret
Fuel and related compositions
Coal treating process or product thereof
44626, 44553, 201 20, C10L 910
Patent
active
054358132
ABSTRACT:
Methods and compositions are provided for increasing packed bulk density of coal, whose surface moisture varies from 2 to 15 weight percent, to desired levels in the range of 45 to 50 lbs./cu.ft., and for controlling and maintaining the improved bulk density. The method involves treating the coal with dilute water solutions (0.01 to 1.0 weight percent of solids) of water soluble, nontoxic polymers, belonging to the classes of polyethylene oxides and polyacrylamides, in amounts between 0.5 gram and 120 grams of polymer solids per metric ton of coal.
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