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- W2355143776 abstract "The surface mechanism of pyrite in alkaline environment was investigated by SEM,XPS and frontier orbital theory calculation.The results reveal that S,Fe,Cu atoms of pyrite crystal structure shifted into the surface and were oxidized to sulfate,hydroxide and sulphur.The oxidation products on the surface of pyrite increased with processing time.Pyrite surface was totally oxidized after 4 hours.Cu substitution in pyrite crystal structure changed receiving and losing electron between Fe and S atoms in HOMO orbital.As a result,the oxidation of Fe and S atoms are more easily than Cu atom.That may explain the experimental phenomenon that iron and sulfur compounds first appeared and then copper oxidation products are discovered on the pyrite surface." @default.
- W2355143776 created "2016-06-24" @default.
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- W2355143776 date "2014-01-01" @default.
- W2355143776 modified "2023-09-23" @default.
- W2355143776 title "Study on Surface Reaction Mechanism of Pyrite in Alkaline Environment" @default.
- W2355143776 hasPublicationYear "2014" @default.
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