Heteronuclear probes of coal structure and reactivity. Quarterly report, July--September 1993
The most exciting finding in this quarter is the quantitative removal of sulfur from Illinois No. 6 coal using PBu{sub 3}. In previous quarterly reports we described the removal of 92% sulfur by refluxing a suspension of Illinois No. 6 in PBu{sub 3} for two days. The secret for quantitative removal (98.7%, run 1 in Table I) is to place the coal sample under vacuum, then adding the PBu{sub 3} while the sample is still under vacuum and finally raising the pressure of the system to atmospheric with an inert gas before refluxing for two days.
- Research Organization:
- Iowa State Univ. of Science and Technology, Ames, IA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-92PC92531
- OSTI ID:
- 10117639
- Report Number(s):
- DOE/PC/92531-T3; ON: DE94005775; BR: AA1525050
- Resource Relation:
- Other Information: PBD: 31 Oct 1993
- Country of Publication:
- United States
- Language:
- English
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