Search U.S. government technical reports digitized or harvested by TRAIL.
Ball-mill grindability indexes of some American coals
Preparation tests of lignite from a deposit near Toledo, Lewis County, Wash.
Washability characteristics and washing of coals from the Matanuska field of Alaska
Cleaning characteristics and cleaning tests of Montana coal
The role of viscosity in dense-medium coal cleaning
Operating results with the feldspar fine-coal jig
Analyses of Washington Coals: Supplement to Technical Papers 491 and 618
Performance of a screw-type, classifier-cyclone combination :a laboratory evaluation