Dewatering studies of fine clean coal

Technical Report · Tue Jan 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/6013331· OSTI ID:6013331

Parekh, B K

Physical cleaning of ultra-fine coal using an advanced froth flotation technique provides a low ash product, however, the amount of water associated with clean coal is high. Economic removal of water from the froth will be important for commercial applicability of advanced froth flotation processes. The main objective of the present research program is to study and understand the dewatering characteristics of ultra-fine clean coal and to develop the process parameters to effectively reduce the moisture to less than 20 percent in the clean coal product. The research approach under investigation utilizes synergistic effects of metal ions and surfactant to lower the moisture of clean coal using a conventional vacuum dewatering technique. During the last year's effort, it was reported that a combination of metal ion and surfactant provided a 22 percent moisture filter cake.

• Research Organization: Kentucky Univ., Lexington, KY (United States). Center for Applied Energy Research
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91334
• OSTI ID: 6013331
• Report Number(s): DOE/PC/91334-T34; ON: DE92007946
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
CARBONACEOUS MATERIALS
CHARGED PARTICLES
COAL
COAL FINES
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
IONS
MATERIALS
METALS
PROGRESS REPORT
REMOVAL
SEPARATION PROCESSES
SURFACTANTS
WATER REMOVAL