Search U.S. government technical reports digitized or harvested by TRAIL.
The sizing action of a coal-washing table
An explanation of washability curves for the interpretation of float-and-sink data on coal
A washability study of the Black Creek Coal bed at Yolande No. 6, Rockcastle, Ala.
Classification and tabling of table middlings at the Colta Coal Washery, Flat Creek, Ala.
A combination cleaning and dewatering process for treating fine sizes of coal :preliminary report
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
Preparation characteristics of coal from Marion County, W. Va.
Selectivities of laboratory flotation and float-sink separations of coal
Fine-screening of coal :testing of the sieve bend
Preparation characteristics of coal from Butler County, Pa.
Crushing chestnut-size anthracite to produce buckwheat no. 1 and rice sizes
Preparation characteristics of coal from Monongalia County, W. Va.
Preparation characteristics of coal from Boone County, W. Va.
Preparation characteristics of coal from Preston County, W. Va.
Laboratory investigation of the effect of temperature on coal flotation
Preparation of ultrathin sections of coal
Using radiant heat to reduce coal filter-cake moisture :results of pilot plant tests
Preparation characteristics of coal from Harrison County, W. Va.
Preparation characteristics of coal from Nicholas County, W. Va.
Removing methane (degasification) from the Pittsburgh coalbed in northern West Virginia
Behavior of clays associated with low-rank coals in coal- cleaning processes
Electrochemical reduction of coal
Preparation characteristics of coal from Mercer County, W. Va.
Preparation characteristics of coal from Kanawha County, W. Va.
Preparation characteristics of coal from Russell County, Va.
Preparation characteristics of coal from Tazewell County, Va.
Cleaning unsized fine coal in a dense-medium cyclone pilot plant
Research and technologic work on Alabama coals :an annotated bibliography
Preparation characteristics of coal from Hancock, Brooke, Ohio, and Marshall counties, W. Va.
Preparation characteristics of coal from Fayette County, W. Va.
Performance characteristics of coal-washing equipment :sand cones
Laboratory investigation of the effect of oxidation on coal flotation
Preparation characteristics of coal from Barbour County, W. Va.
Preparation characteristics of coal from Randolph County, W. Va.
Preparation characteristics of coal from Webster County, W. Va.