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

Physical and chemical characterization and comparison of solids, liquids, and oils derived from Estonian and Green River formation shales

Conference ·
OSTI ID:6157387
Although only a single Estonian raw shale sample with an unknown history has been examined, physical and chemical characterization of this material has been accomplished. A comparison with a representative Green River formation raw shale has been made. Some of the findings are: (1) Elemental analysis indicates that the major elements, aluminum, magnesium, and sodium are deficient in Estonian shale compared to the Green River shale. The minor elements, barium and strontium, and the trace elements, arsenic, cobalt, rare earths, uranium, vanadium, and zinc are also deficient in the Estonian shale compared to the Green River shale. (2) Green River shales contain greater quantities of clay minerals (mainly illite) compared to the Estonian shale. (3) X-ray diffraction data suggests that ..cap alpha..-quartz concentration in the Estonian material is two to three times less than in typical Green River shales. (4) The suite of minerals in the Estonian spent shale suggests extreme processing conditions. (5) Scanning electron microscopy-electron microprobe analysis results indicate the intimate contact of the minerals on the micron level in the Green River shales. Mineral grains in the Estonian shale are dispersed throughout the organic material. (6) Aqueous leaching experiments indicate lead mobility from the Estonian spent materials result in concentrations that are undesirably high. (7) Phenolic compoundsare the most concentrated organic species present in the aqueous Estonian leachates. By comparison, carboxylic acids are the most concentrated species in the Green River leachates. (8) The Estonian raw shale sample has a Fischer assay of 93 barrels per ton, and the Green River an assay of 26 barrels per ton. (9) Organic solvent extraction of the raw shales with 15 different solvents show that approximately 60% of the kerogen in the Green River shale is extractable and only 3.8% of the Estonian shale is extracted under the same conditions.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6157387
Report Number(s):
LA-UR-81-1850; CONF-810676-4; ON: DE81025345
Country of Publication:
United States
Language:
English

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