Coal surface control for advanced fine coal flotation: Quarterly report No. 2, January 1--March 31, 1989

Technical Report · Thu Jun 01 04:00:00 EDT 1989

DOI:https://doi.org/10.2172/5885930· OSTI ID:5885930

Fuerstenau, D. W.; Hanson, J. S.; Narayanan, K. S.; Khan, L.; Diao, J.; Yin, Y.; Waltermire, M.; Hu, W.; Zou, Y.

The primary goal of this research project is to develop advanced flotation methods of coal cleaning in order to achieve 90% pyritic sulfur removal at 90% Btu yield, using coal samples procured from six major US coal seams. Concomitantly, the ash content of these coals is to be reduced to 6% or less. The investigation of mechanisms for the control of coal and pyrite surfaces prior to fine coal flotation is an important aspect of the project objectives. A second major objective is to investigate the factors involved in the progressive weathering and oxidation of coal stored in three storage modes, namely, open, covered and in an argon-inerted atmosphere, over a period of twelve months. 37 figs., 41 tabs.

• Research Organization: California Univ., Berkeley, CA (USA); Utah Univ., Salt Lake City, UT (USA); Columbia Univ., New York, NY (USA); Praxis Engineers, Inc., Milpitas, CA (USA)
• DOE Contract Number: AC22-88PC88878
• OSTI ID: 5885930
• Report Number(s): DOE/PC/88878-T3; ON: DE89015781
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ASH CONTENT
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DOCUMENT TYPES
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
MACERALS
MATERIALS
MINERALS
OXIDATION
PARTICLE SIZE
PETROGRAPHY
PROGRESS REPORT
PYRITE
REMOVAL
SEPARATION PROCESSES
SIZE
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SURFACES
TRANSITION ELEMENT COMPOUNDS
WEATHERING