Relationship between major inorganic elements and minerals in coals from the Ashibetsu district, Ishikari coal field, Japan
- National Inst. for Resources and Environment, Tsukuba-shi (Japan)
Si, Al, K, Ti, Na, Mg, Ca, Fe, Sr, P, F, and Cl were analyzed in relation to the mineralogical composition of Ashibetsu coals. Si, Al, K, Ti, and Na are associated with silicate minerals. Mg is mostly associated with carbonate minerals and partly with silicate minerals. Most of the Ca also exists as carbonate minerals, although part of the Ca exists as apatite. Fe is divided into carbonate minerals, pyrite, and iron sulfate minerals. Sr and a minor part of the Al are associated with goyazite, and P occurs as apatite and goyazite. F not only occurs as apatite, but also appears to be organically combined. Cl also seems to exist as both inorganic and organic element, though the content of Cl is low in the coal seams. Inorganic chlorine is thought to be incorporated into the coal seams by clay minerals.
- OSTI ID:
- 370390
- Report Number(s):
- CONF-960376-; TRN: 96:003805-0442
- Resource Relation:
- Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
- Country of Publication:
- United States
- Language:
- English
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