Liquid chromatographic analysis of coal surface properties. Quarterly progress report, January--March 1994
Experiments on flotation of 60--200 mesh treated Illinois No. 6 coal (PSOC-1539) and Wyodak coal (PSOC-1545) were performed. The coals were treated with 20-ppM alcohol aqueous solutions (soln) for 1-24 hours at the 0.002-g/min mass flow rate at 225C. Flotation of Illinois No. 6 coal, treated with 1-propanol aqueous solution, increases with treatment durations for the first 10 hours and then decreases. Flotation of Illinois No. 6 coal, treated with isopropanol soln increases with treatment durations for the first 18 hours and then levels off. Flotation of Illinois No. 6 coal, treated with butanol soln, increases with treatment durations. Flotation of 1-butanol-treated Illinois No. 6 coal is higher than that of t-butanol-treated Illinois No. 6 coal. Flotation of Illinois No. 6 coal, treated with 20-ppM-isobutanol 20-ppM-HCl soln, increases with treatment durations for the first 10 hours treatment period, and then decreases sharply with treatment durations. Flotation of Wyodak coal, treated with water only, increases with treatment durations. Effects of water treatment on flotation of Wyodak coal are significantly pronounced compared to Illinois No. 6 coal.
- Research Organization:
- Tuskegee Univ., AL (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-91PC91283
- OSTI ID:
- 10147542
- Report Number(s):
- DOE/PC/91283-T11; ON: DE94011126; BR: AA1525050
- Resource Relation:
- Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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