Synthesis and properties of ammoniojarosites prepared with iron-oxidizing acidophilic microorganisms at 22–65°C

Synthesis and properties of ammoniojarosites prepared with iron-oxidizing acidophilic microorganisms at 22–65°C

Ammoniojarosite [(NH4,H3O)Fe3(OH)6(SO4)2], a poorly soluble basic ferric sulfate, was produced by microbiological oxidation of ferrous sulfate at pH 2.0–3.0 over a range of NH4+ concentrations (5.4–805mM) and temperatures (22–65°C). Ammoniojarosites were also produced by chemical (abiotic) procedure...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Geochimica et cosmochimica acta 2007-01, Vol.71 (1), p.155-164
Hauptverfasser: Wang, Hongmei, Bigham, Jerry M., Jones, Franklin S., Tuovinen, Olli H.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Ammoniojarosite [(NH4,H3O)Fe3(OH)6(SO4)2], a poorly soluble basic ferric sulfate, was produced by microbiological oxidation of ferrous sulfate at pH 2.0–3.0 over a range of NH4+ concentrations (5.4–805mM) and temperatures (22–65°C). Ammoniojarosites were also produced by chemical (abiotic) procedures in parallel thermal (36–95°C) experiments. At 36°C, schwertmannite [ideally Fe8O8(OH)6(SO4)] was the only solid product formed at
ISSN:0016-7037
DOI:10.1016/j.gca.2006.09.001