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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

Recovery of coal from washery refuse :some examples of the effect of continuous mining machines on preparation problems

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


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