منابع مشابه
Jarosite stability on Mars
Jarosite, a potassium (sodium) iron sulphate hydrated mineral, has recently been identified on the martian surface by the Opportunity rover. Using recent thermochemical data [Drouet and Navrotsky, 2003, Geochim. Cosmochim. Acta 67, 2063–2076; Forray et al., 2005, Geochim. Cosmochim. Acta, in press], we calculate the equilibrium decomposition curve of jarosite and show that it is thermodynamical...
متن کاملNascent Jarosite Mineralization of Sulphur Springs, St. Lucia, W.i.: Implications for Meridiani Jarosite Formation
FOR MERIDIANI JAROSITE FORMATION. J. P. Greenwood 1 , M. S. Gilmore 1 , R. E. Blake 2 , A. M. Martini 3 , M. Gomes 1 , S. Tracy 3 , M. D. Dyar 4 , J. A. Gilmore 5 , and J. Varekamp 1 , 1 Dept. of Earth & Environmental Sciences, Wesleyan University, Middletown, CT 06459, 2 Dept. of Geology & Geophysics, Kline Geology Laboratory, Yale University, New Haven, CT 06520, 3 Dept. of Geology, Amherst C...
متن کاملAlkaline decomposition of synthetic jarosite with arsenic
The widespread use of jarosite-type compounds to eliminate impurities in the hydrometallurgical industry is due to their capability to incorporate several elements into their structures. Some of these elements are of environmental importance (Pb(2+), Cr(6+), As(5+), Cd(2+), Hg(2+)). For the present paper, AsO4 (3-) was incorporated into the lattice of synthetic jarosite in order to carry out a ...
متن کاملEcological Risk Assessment of Jarosite Waste Disposal
Jarosite waste, originating from zinc extraction industry, is considered hazardous due to the presence and the mobility of toxic metals that it contains. Its worldwide disposal in many tailing damps has become a major ecological concern. Three different methods, namely modified Synthetic Precipitation Leaching Procedure (SPLP), three-stage BCR sequential extraction procedure and Potential Ecolo...
متن کاملJarosite characteristics and its utilisation potentials.
During metallic zinc extraction from zinc sulphide or sulphide ore, huge quantity of jarosite is being released universally as solid residues. The jarosite mainly contains iron, sulphur, zinc, calcium, lead, cadmium and aluminium. Jarosite released from such industrial process is complex and its quality and quantity make the task more complex for safe disposal. Apart from water contamination, j...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1952
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.55.71