Fine coal cleaning using a centrifugal fluidized bed separator

Rick Honaker, Avimanyu Das, Mutombo Nombe

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


Enhanced gravity separators (EGS) provide a more efficient separation than froth flotation when cleaning coal in the 150 × 25 μm particle size range. To improve the performance of an EGS unit, air bubbles were injected into the feed stream in an attempt to decrease the apparent density of the coal particles due to the formation of bubble-coal particle agglomerates. Air injection had a significant impact on operating characteristics and separation performance. Coal recovery was increased by 10 to 20 absolute percentage points while a 2 percentage point drop in the minimum product ash content was also achieved.

Original languageEnglish
Number of pages10
StatePublished - 2005
Event2005 SME Annual Meeting: Got Mining - Preprints - Salt Lake City, UT, United States
Duration: Feb 28 2005Mar 2 2005


Conference2005 SME Annual Meeting: Got Mining - Preprints
Country/TerritoryUnited States
CitySalt Lake City, UT

ASJC Scopus subject areas

  • General Engineering


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