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U.S. Department of Energy
Office of Scientific and Technical Information

Utilization of coal associated minerals. Quarterly report No. 6, January 1-March 31, 1979

Technical Report ·
DOI:https://doi.org/10.2172/6089697· OSTI ID:6089697
Laboratory analysis of physical and chemical properties has continued on representative samples of plant feed coal as well as washed coal and refuse from the Pittsburgh seam. Further characterization of the Pittsburgh sample included correlations between maceral groups, macerals, and mineral matter in head and float-sink fractions. Qualitative mineral distribution trends were also identified for head samples from the Pittsburgh seam using ir, and a special die and pressing technique was developed for use with the Phillips APD-3501 x-ray diffractometer. Additional work was performed to determine the utilization of Pope, Evans and Robbins fluidized-bed combustion by-products in fired structural materials. The utilization potential of this spent limestone bed ash as an aggregate in fired structural products has been shown to be unfeasible because of cracks and fissures in the structural products. The cracks and fissures are caused by free lime in the bed ash hydrating and expanding after being wetted during the mixing cycle.
Research Organization:
West Virginia Univ., Morgantown (USA). Coal Research Bureau
OSTI ID:
6089697
Report Number(s):
FE-2721-6
Country of Publication:
United States
Language:
English

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