Production of Illinois base compliance coal using enhanced gravity separation. [Quarterly] technical report, September 1--November 30, 1993
- Southern Illinois Univ., Carbondale, IL (United States). Dept. of Mining Engineering
- Illinois Clean Coal Institute, Carbondale, IL (United States)
Illinois Basin coal often contains a significant portion of finely dispersed pyrite. Most of the free pyrite particles exist in the fine size fractions, which are generally treated using froth flotation. An inherent problem of the froth flotation process is the inefficient treatment of middling particles containing a small amount of coal on their surface. On the other hand, gravity-based processes can effectively remove middling particles containing only a small amount of coal. Falcon Concentrators Inc. and Knelson Gold Concentrators Inc. have developed full-scale, enhanced gravity separators for the treatment of heavy minerals. This project will evaluate the potential of using these concentrators to de-ash and de-sulfurize Illinois coal fines, thus, producing coal products that meet the requirements for Phase I of the Clean Air Act. Since both continuous separators are commercially available, the results obtained in this investigation should be applicable to industrial operations.
- Research Organization:
- Southern Illinois Univ., Carbondale, IL (United States). Dept. of Mining Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-92PC92521
- OSTI ID:
- 10134636
- Report Number(s):
- DOE/PC/92521--T116; ON: DE94008410; BR: AV0100000/AV0102000
- Country of Publication:
- United States
- Language:
- English
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