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Recent developments in combination cleaning and dewatering of fine sizes of coal
Preparation characteristics of coal from Clearfield County Pa.
Laboratory evaluation of vacuum flotation for cleaning coal fines
Use of pulverized rock as dense medium for salvaging coal from Pittsburgh-bed refuse
Operating results with the feldspar fine-coal jig
Preparation characteristics of coal from Dickenson County, Va.
Preparation characteristics of coal from Greene County, Pa.
Flocculation as an aid to filtration of coal slurry
Kerosine flotation of coal :semicommercial studies of cell performance
Preparation characteristics of coal from Allegheny County, Pa.
Preparation characteristics of coal from Washington County, Pa.
Using radiant heat to reduce filter-cake moisture in coal preparation