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Project Title: The study of the effect of organic complexing agents of Fe(III) or Fe(II) on iron monosulfide oxidative dissolution
Contracting Authority: Executive Agency for Higher Education, Research, Development and Innovation Funding
Partnership Programme: Joint Applied Research Projects - PCCA 2011
Project Registration Code: PN-II-PT-PCCA-2011-3.1-0683
Project Number: 51/2012
Acronym: ECAFE

Coordinator: University of Craiova
Partner 1: University "AI Cuza" Iasi
Partner 2: National Institute of Materials Physics Bucharest

Abstract: The study is focused on two directions: a theoretical direction of fixing of the main aspects of FeS oxidative dissolution and, respectively, a practical direction, materialized by experimental studies, having as objectives achievement of our own results and their interpretation regarding to literature data. The main purposes of this study are the accurate characterization of FeS oxidative dissolution process in the presence of Fe(III) and Fe(II) complexing agents, determining the temporal evolution of some indicators of FeS oxidation degree (pH, Eh, total iron concentration, total dissolved sulfur concentration, corrosion current densities, charge transfer/polarization resistances, etc.), surface analysis of reacted mineral samples by X-ray diffraction (XRD), FTIR spectroscopy, Raman spectroscopy, Scanning Electron Microscopy and the selection of ligands having an adequate inhibition efficiency of FeS oxidative dissolution, in order to create effective strategies of suppression of the environmental contamination See results ...

Key Words: FeS oxidation; Acid Mine Drainage; Electrochemical Impedance Spectroscopy; Organic Inhibitors; Raman Spectroscopy

Last updated: December 11, 2016