Removal of pyrite and trace elements from waste coal by dissolved-CO{sub 2} flotation and chelating agents. [Quarterly] technical report, December 1, 1993--February 28, 1994
- Babcock and Wilcox Company (United States)
In dissolved-CO{sub 2} flotation, ultrafine -bubbles are generated by CO{sub 2} dissolved in water. The ultrafine bubbles have the potential to improve the separation efficiency in fine coal cleaning. Chemicals will be used prior to or during dissolved-CO{sub 2} flotation to improve the separation efficiency-CO{sub 2} of pyrite and other minerals including trace metals from coal. Chelating agent will be applied to clean coal to further reduce the trace metals from coal. During this period, a 3 in. diameter packed column has been purchased and installed. This column was then modified for use in dissolved-CO{sub 2} flotation. Coal samples of Illinois No. 6 coal are being prepared for flotation. Preliminary flotation tests were performed on Illinois No. 6 waste coal.
- Research Organization:
- Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-92PC92521
- OSTI ID:
- 10170912
- Report Number(s):
- DOE/PC/92521--T153; ON: DE94016035; BR: AV0100000/AV0102000
- Country of Publication:
- United States
- Language:
- English
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