Scholarly record
PHYSICOCHEMICAL CHARACTERIZATION OF PYRITE CINDERS
Abstract
A detailed investigation of physical and chemical properties of pyrite cinders from sulfuric acid production has been carried out by employing variety of analytical methods and techniques, including ICP-MS, XRL, XRD, M\"ossbauer Spectroscopy, SEM-EDX, SQUID, TGA, etc. The study is focused on the investigation of the content and distribution of about 50 micro- and trace elements in magnetically separated fractions, and among/within individual particles. It has been found that many heavy metals exist in easily available forms, being concentrated predominantly in singe particles, or on the surface of iron oxides. Some elements (such as Co, Cr, Hf, Ni, Ta, V and W) are slightly enriched in magnetic fractions, but most of micro and trace elements (As, Ba, Cd, Ce, Nd, La, Mn, Mo, Pb, Sb, Se, Sr, Tl, U, etc.) are more concentrated in nonmagnetic fractions.
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References4
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