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Surface oxidation o...
Surface oxidation of synthetic pyrrhotite during wetting-drying treatment
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Kalinkin, Alexander M. (författare)
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- Forsling, Willis (författare)
- Luleå tekniska universitet,Industriell miljö- och processteknik
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- Makarov, Dmitriy V (författare)
- Kola Science Centre, Russian Academy of Sciences, Apatity
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- Makarov, Victor N. (författare)
- Kola Science Centre, Russian Academy of Sciences, Apatity
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(creator_code:org_t)
- Mary Ann Liebert Inc, 2000
- 2000
- Engelska.
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Ingår i: Environmental Engineering Science. - : Mary Ann Liebert Inc. - 1092-8758 .- 1557-9018. ; 17:6, s. 329-335
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The surface changes of synthetic hexagonal pyrrhotite Fe[10]S[11] during laboratory wetting-drying treatment at 45°C were investigated using FTIR (DRIFT) spectroscopy, FTIR Raman microscopy, and scanning electron microscopy. α-FeO(OH) (goethite) and elemental sulphur were the main products of the surface pyrrhotite oxidation. The formation of goethite and elemental sulphur was studied on the basis of the corrosion theory and using a potential-pH (Pourbaix) diagram. The appearance of oxidation products on the surface of pyrrhotite grains was detected between 10 and 20 h of treatment. The obtained results can be used for comparison of oxidation processes of synthetic pyrrhotite with that of natural sulphide minerals in dumps.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Chemistry of Interfaces
- Gränsytors kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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