A parametric study of fine coal cleaning using column flotation

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6536628

Parekh, B K; Groppo, J G; Bland, A E

Recovery of fine coal is becoming an important and integral part of coal cleaning plants. Conventional froth flotation, which is commonly used in the coal industry, is inefficient at cleaning fine coal which contains large amounts of ultrafine ash or clays. The Kentucky Center for Energy Research Laboratory (KCERL) has been investigating an alternative method, counter-current column flotation, which is widely used in the mineral industry. Through an advanced cell design and counter-current wash of the froth, column flotation can produce a low-ash, clean coal product without sacrificing combustible recovery. An experimental program was conducted using a 2-inch internal diameter Canadian column flotation cell to examine the effect of various operating parameters on clean coal recovery and quality. The study investigated six operational parameters: feed rate, frother concentration, air flow rate, column height, pulp density and wash water rate.

• Research Organization: Kentucky Center for Energy Research Lab., P.O. Box 13015, Lexington, KY 40512
• OSTI ID: 6536628
• Report Number(s): CONF-861146-
• Resource Relation: Conference: AIChE winter annual meeting, Miami, FL, USA, 2 Nov 1986
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL FINES
FLOTATION
WASHING
SEPARATION EQUIPMENT
OPERATION
AIR FLOW
COAL PREPARATION
FLOW RATE
OPTIMIZATION
PARTICLE SIZE
WATER
CLEANING
FLUID FLOW
GAS FLOW
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SIZE
010300* - Coal
Lignite
& Peat- Preparation- (1987-)