Development of a Strategy for Selective Metal Recovery from Pregnant Leach Solutions of Kupferschiefer Bioleaching

Sabrina Hedrich; Axel Schippers; D. Barrie Johnson

doi:10.4028/www.scientific.net/AMR.1130.255

Paper Titles

Aspergillus niger PSSG8 Mediated Bioleaching of Monazite for the Recovery of Rare Earth and other Metal Constituents
p.238

Bioleaching of Complex Refractory Gold Ore Concentrate of China: Comparison of Shake Flask and Continuous Bioreactor
p.243

Comparative Experiments on Acid Leaching and Bioleaching to a Sandstone Type Uranium Ore
p.247

Utilization of Metabolic Citric Acid from Aspergillus niger Using Corn Starch in the Nickel Leaching of Indonesian Saprolitic Ore
p.251

Development of a Strategy for Selective Metal Recovery from Pregnant Leach Solutions of Kupferschiefer Bioleaching
p.255

Interactions between Chalcopyrite and Marmatite during Bioleaching Process
p.259

Overcoming the Bacteriostatic Effects of Heavy Metals on A. thiooxidans Direct Bioleaching of Saprolitic Ni Laterite Ores
p.263

An In Situ Characterization for the Bioleaching Process of Natural Pyrite Using Electrochemical Noise Technique
p.268

Organic Acid Biogeneration by Aspergillus niger and its Utilization for Indirect Bioleaching of Nickel Laterite Ore
p.273

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Development of a Strategy for Selective Metal Recovery from Pregnant Leach Solutions of Kupferschiefer Bioleaching

Abstract:

Pregnant leach solutions (PLS) resulting from bioleaching of copper concentrate from Kupferschiefer are characterized by low pH values and high concentrations of mainly ferric iron, copper, zinc and sulfate, as well as significant amounts of nickel and cobalt. In order to recover the valuable metals for further processing, a novel technique that promotes selective metal recovery and sulfate removal from acidic liquors, described in this study, is proposed.