Centrifugal float-sink testing of fine coal: An interlaboratory test program

Conference · Tue Oct 01 04:00:00 EDT 1991

OSTI ID:5933375

Killmeyer, R P; Hucko, R E ^[1]; Jacobsen, P S ^[2]

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1. USDOE Pittsburgh Energy Technology Center, PA (United States). Coal Preparation Div.
2. Burns and Roe Services Corp., Pittsburgh, PA (United States)

The Pittsburgh Energy Technology Center (PETC) recently completed an interlaboratory test program (ITP) involving eight laboratories that are currently performing washability analyses of coals finer than 500-microns top size using a centrifugal float-sink technique. With the current and future development of fine coal cleaning technology, there is a growing need to determine the washability of coals in extremely fine sizes, in some cases as fine as several microns by zero. However, much uncertainty exists about limitations relative to particle size and the viability of centrifugal float-sink procedures in achieving ideal'' specific gravity separations (i.e, the perfect separation of particles according to their density). The objective of this work was to develop an understanding regarding the variables affecting the procedure and initiate a process for obtaining a standard procedure. (VC)

• Research Organization: USDOE Pittsburgh Energy Technology Center, PA (United States). Coal Preparation Div.
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• OSTI ID: 5933375
• Report Number(s): DOE/PETC/TR-92/1; CONF-901218--1; ON: DE92006411
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ASHES
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CENTRIFUGATION
CLEANING
COAL
COAL FINES
COAL PREPARATION
COMBUSTION PRODUCTS
DENSITY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
MINERALS
NONMETALS
PARAMETRIC ANALYSIS
PARTICLE SIZE
PHYSICAL PROPERTIES
PYRITE
RESIDUES
SEPARATION PROCESSES
SIZE
SULFIDE MINERALS
SULFUR
WASHING