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Kinetics of cupric leaching of pyrite in 4 M NaCl solutions Cinétique de la lixiviation cuivrique de la pyrite dans des solutions de NaCl 4M
(Taylor & Francis, 2020)
Cupric chloride leaching is an attractive alternative for the treatment of pyritic refractory gold ores. In this context, the kinetics of pyrite dissolution was studied in cupric chloride solutions containing 4 M NaCl. ...
Interactions of mimic weathered pyrite surfaces (FeS2) with acidic culture media (0 K): An approach for (bio)leaching applications
(Elsevier Science, 2018-12)
In biohydrometallurgical processes, a mineral exhibits different oxidation phases due to the system's heterogeneity, especially in heap leach pads. Oxidation chemically modifies the mineral surface altering its interface, ...
Mechanism of enargite pressure leaching in the presence of pyrite
(ELSEVIER, 2011)
Biofilm formation, communication and interactions of leaching bacteria during colonization of pyrite and sulfur surfaces
(INSTITUT PASTEUR ELSEVIER, 2014)
Biologically enhanced dissolution of a pyrite-rich black shale concentrate
(1997-01-01)
The acid leaching of a pyrite-rich black shale concentrate (7% S) was tested in this study. The experiments were performed at 5-30% pulp densities and with inoculations of Fe- and S-oxidizing thiobacilli (Thiobacillus ...
Biofilm formation, communication and interactions of leaching bacteria during colonization of pyrite and sulfur surfaces
(Elsevier, 2014)
Bioleaching of metal sulfides is an interfacial process where biofilm formation is considered to be important in the initial steps of this process.
Among the factors regulating biofilm formation, molecular cell-to-cell ...
Identification of surface processes in individual minerals of a complex ore through the analysis of polished sections using polarization microscopy and x-ray photoelectron spectroscopy (Xps)
(MDPI, 2018-09-28)
Understanding the changes of a mineral during ore processing is of capital importance for the development of strategies aimed at increasing the efficiency of metal extraction. This task is often difficult due to the ...
Attachment of acidithiobacillus ferrooxidans to pyrite in fresh and saline water and fitting to Langmuir and Freundlich isotherms
(Springer, 2020)
Objective This study aims to investigate the attachment of Acidithiobacillus ferrooxidans to pyrite in two different environments: fresh and saline water (water with 35 g/L of NaCl or 0.6 M). Adsorption isotherms were ...