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- W45477100 abstract "Not all coal is useful for metallurgical purposes. Some Alabama coals are of metallurgical grade and some are not. The object of this study was to determine, from coal analyses or other data, the distinguishing compositional or physical property differences and to estimate the quantity and quality of known resources of coals most suitable for metallurgical purposes. Estimates of coal resources of Alabama have been made but no separate estimate of coals suitable for metallurgical use is available. Statistical studies of almost 1300 published coal analyses revealed that the percentages of fixed carbon, total carbon, and oxygen could be used to distinguish metallurgical from other coals, when calculated to the unit coal (dry, mineral matter-free) basis. Unit heating value and the ratio of the number of unit carbon atoms to unit hydrogen atoms were also useful to a lesser extent. Where analyses of deep coal are unknown, Hilt's Law and David White's dynamical and regional metamorphism theories should permit a first order estimate of rank until better data are available. Using Culbertson's estimated coal resources (1964) as of January 1, 1958, and Shotts 1971 and 1975 unpublished corrections for 1958-1974 coal production, a rough, first-order reserve estimate was made. Themore » Warrior coalfield has 2.62 billion tons, the Cahaba 0.19, Coosa none, and Plateau 1.3 x 10/sup -3/ billion tons of metallurgical coal. Of the borderline coals, 1.3 billion tons are in the Warrier coalfield, 0.57 in the Cahaba, and 12.2 x 10/sup -3/ billion tons are in the two smaller coalfields.« less" @default.
- W45477100 created "2016-06-24" @default.
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- W45477100 date "1980-10-01" @default.
- W45477100 modified "2023-09-26" @default.
- W45477100 title "Conservation of metallurgical coals in the Southeast. [Coking coal]" @default.
- W45477100 hasPublicationYear "1980" @default.
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