A review on pyrrhotite oxidation - ScienceDirect
2004年9月1日 · The electrochemical oxidation of pyrrhotite at pH 4.6, 9.2 and 13.0 produces mainly sulphur and significant quantities of sulphate in the alkaline solutions and the oxidation …
Highly oxidising fluids generated during serpentinite breakdown …
2017年9月4日 · In order to test the impact of sulfur-bearing phases during the progressive devolatilization of serpentinites in subduction zones, we ran a suite of models containing …
Pyrrhotite reaction kinetics: reaction rates for oxidation by …
2000年5月1日 · Oxidation reactions of pyrrhotite by either ferric iron or oxygen resulted in incomplete oxidation of the sulfide in pyrrhotite. On the basis of iron release, the activation …
Bio-oxidation behavior of pyrite, marcasite, pyrrhotite, and ...
2021年9月1日 · The bio-oxidation of pyrrhotite, pyrite, marcasite, and arsenopyrite was carried out with mesophilic bacteria (Acidithiobacillus ferrooxidans, A. thiooxidans, and Leptospirillum …
(PDF) A Review on Pyrrhotite Oxidation - ResearchGate
2004年9月1日 · This paper presents and discusses the main factors controlling pyrrhotite oxidation and the proposed mechanisms of oxidation under normal conditions of temperature …
Mineral Products of Pyrrhotite Oxidation by Thiobacillus …
The biological leaching of pyrrhotite (Fe 1-x S) by Thiobacillus ferrooxidans was studied to characterize the oxidation process and to identify the mineral weathering products. The …
Kinetics of Oxidation of Pyrrhotite | SpringerLink
2018年8月19日 · In an ongoing study at the University of Toronto, pyrrohite tailings are treated to produce a ferronickel alloy and stoichiometric pyrrhotite known as Troilite, FeS. The ferronickel …
Oxidation of Pyrrhotite - Academic library
However, pyrite (FeS 2) and pyrrhotite (Fe a. x) S) are two of the most common iron-sulphide minerals in areas where AMD is prevalent (Fox et al., 1997). It is known that dissolved oxygen …
Mechanism of nonoxidizing and oxidative pyrrhotite leaching
2012年8月1日 · The aim of this study is to clarify the mechanism of the chemical reactions of pyrrhotite dissolution in nonoxidizing acids during oxidative bacterial leaching. In this work, …
Pyrrhotite Biooxidation by Moderately Thermophilic Acidophilic ...
2020年10月1日 · The results obtained demonstrated that the sulfur-oxidizing bacterium played an important role in the oxidation of pyrrhotite, while the activity of the iron-oxidizing bacterium L. …
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