Recovery of fine coal from waste streams using advanced column flotation

Technical Report · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5792349

Groppo, J G; Parekh, B K

The overall objective of this program is to evaluate the application of an advanced physical separation technique, namely Ken-Flote'' column flotation to recover clean coal with minimum sulfur and ash content at greater than 90 percent combustible recovery from two Illinois coal preparation plant fine waste streams. This project will optimize various operating parameters with particular emphasis on fine bubble generating devices and reagent packages to enhance to rejection of liberated ash and pyritic sulfur. During this contract period, column flotation testing was conducted on the flotation feed slurry obtained from the Kerr-McGee Galatia Preparation Plant. The column flotation tests were conducted using three different bubble generating devices: static, gas saver and foam jet spargers. Each of these devices was tested with three different frothers and various column operating variables to provide maximum combustible recovery, minimum product ash and maximum pyrite rejection. In general, the column flotation provided a clean coal containing about 4--6 percent ash at combustible recovery ranging from 88 to 92 percent. 10 figs.

• Research Organization: Kentucky Univ., Lexington, KY (USA). Center for Applied Energy Research
• Sponsoring Organization: USDOE; ILDENR; USDOE, Washington, DC (USA); Illinois Dept. of Energy and Natural Resources, Springfield, IL (USA)
• DOE Contract Number: FG22-90PC90176
• OSTI ID: 5792349
• Report Number(s): DOE/PC/90176-T30; ON: DE91014044
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
MATERIALS RECOVERY
COAL PREPARATION PLANTS
WASTE MANAGEMENT
ASH CONTENT
CALORIFIC VALUE
FLOTATION
PROGRESS REPORT
SULFUR CONTENT
WASTE WATER
CARBONACEOUS MATERIALS
COMBUSTION PROPERTIES
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
LIQUID WASTES
MANAGEMENT
MATERIALS
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
WASTE PROCESSING
WASTES
WATER
010300* - Coal
Lignite
& Peat- Preparation- (1987-)
010800 - Coal
Lignite
& Peat- Waste Management