Redox reaction of aqueous selenite with As-rich pyrite from Jiguanshanore mine (China) : reaction products and pathway

Mingliang Kang,Fabrizio Bardelli,Laurent Charlet,Antoine Gehin,Andrey Shchukarev,Fanrong Chen,Mariechristine Morel,Bin Ma,Chunli Liu

Applied Geochemistry（2014）

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摘要

•Arsenic local environment in As-rich pyrite sample is very close to arsenopyrite.•Se(0) was the main reduction product when Se(IV) reacted with As-rich natural pyrite at pH 5.05–8.65.•Release of the As impurity via arsenopyrite oxidation is preferential for As-rich pyrite dissolution.

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geophysics,geochemistry

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