Characterization and evaluation of washability of Alaskan coals: Fifty selected seams from various coal fields: Final technical report, September 30, 1976-February 28, 1986. [50 coal seams]

Technical Report · Mon Sep 01 04:00:00 EDT 1986

DOI:https://doi.org/10.2172/5635104· OSTI ID:5635104

Rao, P. D.

This final report is the result of a study initiated in 1976 to obtain washability data for Alaskan coals, to supplement the efforts of the US Department of Energy in their ongoing studies on washability of US coals. Washability characteristics were determined for fifty coal samples from the Northern Alaska, Chicago Creek, Unalakleet, Nenana, Matanuska, Beluga, Yentna and Herendeen Bay coal fields. The raw coal was crushed to 1-1/2 inches, 3/8 inch, 14 mesh and 65 mesh top sizes, and float-sink separations were made at 1.30, 1.40 and 1.60 specific gravities. A limited number of samples were also crushed to 200 and 325 mesh sizes prior to float-sink testing. Samples crushed to 65 mesh top size were also separated at 1.60 specific gravity and the float and sink products were characterized for proximate and ultimate analyses, ash composition and ash fusibility. 72 refs., 79 figs., 57 tabs.

• Research Organization: Alaska Univ., Fairbanks (USA). Mineral Industry Research Lab.
• DOE Contract Number: FG22-83PC62695
• OSTI ID: 5635104
• Report Number(s): DOE/PC/62695-T5; ON: DE87014189
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ALASKA
ASHES
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CLEANING
COAL
COAL DEPOSITS
COAL PREPARATION
ENERGY SOURCES
FEDERAL REGION X
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
MELTING
MINERAL RESOURCES
NORTH AMERICA
PHASE TRANSFORMATIONS
RESIDUES
RESOURCES
SAMPLING
USA
WASHING