Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Sulfur Varieties in Illinois Coals. Float-Sink Tests.
Author Helfinstin, R. J. ; Shim, N. F. ; Simo, J. A. ;
CORP Author Illinois State Geological Survey, Urbana.
Year Published 1969
Report Number PH-86-67-206; 0915;
Stock Number PB-206 464
Additional Subjects ( Coal ; Flotation) ; ( Coal preparation ; Desulfurization) ; Washing ; Fossil fuels ; Air pollution ; Illinois ; Particle size ; Tables(Data) ; Grindability ; Air pollution ; Abatement ;
Library Call Number Additional Info Location Last
NTIS  PB-206 464 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 100p
The primary aim was to study the washability characteristics of Illinois coals, with particular emphasis on the quantity, distribution, and varieties (forms) of sulfur. A basis for evaluating how much pyritic sulfur could be removed by conventional preparation techniques, and a basis for evaluating the pyritic and total sulfur contents of coal mine refuse were also sought. A secondary object was a comprehensive study of other chemical and physical properties, including mineral matter other than sulfur compounds, trace elements, coal petrography, and palynology. The coals sampled and tested indicated that only a few could be prepared with a practical percentage of recovery and 1.5 percent or less total sulfur. Only about a fourth of those tested had an 80 percent float recovery and 2.5 percent or less total sulfur. The float coal fractions usually had less sulfur in the smaller coal sizes, but the differences were not great enough to make fine grinding a practical means of sulfur reduction. The maximum sulfur in the 1.60 specific gravity sink fraction for the 40 coal samples tested was 26 percent. These sink products indicate that the mine refuse from some Illinois mines is a potential source of sulfur. (Author)