Search U.S. government technical reports digitized or harvested by TRAIL.
A study of the properties of Texas polyhalite pertaining to the extraction of potash
Hydrogenation and liquefaction of coal.
Hydrogenation and liquefaction of coal.
Studies of the kinetics of coal hydrogenation
Coal hydrogenation :the effect of variations in the coal-to-vehicle ratio
Solvent extraction of coal by aromatic compounds at atmospheric pressure