High capacity fine coal cleaning using an enhanced gravity concentrator

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Recent research has shown that enhanced gravity separators provide the opportunity to effectively clean 1 mm × 37 micron coal. A detailed experimental program was performed on a continuous Falcon Concentrator, which was found to achieve separations at mass throughput capacity values in excess of 75 tonnes/hour. The apparent particle separation density for 1 mm × 75 micron coal was about 1.60 with relatively high efficiency (Ep = 0.12). Typical ash and sulfur rejection values of 85% and 70%, respectively, were achieved while recovering 85% of the combustible material. Metallurgical and efficiency data from the evaluation are presented in this publication.

Original languageEnglish
Pages (from-to)1191-1199
Number of pages9
JournalMinerals Engineering
Issue number12
StatePublished - Dec 1998

Bibliographical note

Funding Information:
The funding for the work presented in this publication was funded in part by the Illinois Clean Coal Institute (Project No. 94-1.1A-1) and CONSOL Inc. The author expresses sincere appmcintion for the assistance of Dr. D. Wang and Mr. Richard Voyles for efforts in constructi~ and maintaining the fine coal cleaning circuit. Gratitude for support is also extended to the SIUC Coal Research Center and Steve McAlister of Falcon Concentrators, Inc.


  • Coal
  • Fine particle processing
  • Gravity concentration

ASJC Scopus subject areas

  • Control and Systems Engineering
  • General Chemistry
  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering


Dive into the research topics of 'High capacity fine coal cleaning using an enhanced gravity concentrator'. Together they form a unique fingerprint.

Cite this