Search U.S. government technical reports digitized or harvested by TRAIL.
Froth-flotation practice in coal-preparation plants of Western Europe and Great Britain
Recovery of coal from washery refuse :some examples of the effect of continuous mining machines on preparation problems
Cleaning characteristics and cleaning tests of Montana coal
The role of viscosity in dense-medium coal cleaning
Laboratory cleaning trials on a Pennsylvania anthracite in a baum-type jig and a dense-medium pilot plant