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Mesophilic vs. Moderate Thermophilic Bioleaching
Luleå tekniska universitet.
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1993 (English)In: Biohydrometallurgical technologies: proceedings of an International Biohydrometallurgy Symposium held in Jackson Hole, Wyoming, USA, August 22-25, 1993 / [ed] Arpad E. Torma, Warrendale, Pa: Minerals, Metals & Materials Society, 1993, p. 29-38Conference paper, Published paper (Refereed)
Abstract [en]

A comparative study on bioleaching with mesophilic and moderate thermophilic bacteria has been performed. The study was carried out by continuous bioleaching with a series of three reactors with a total volume of 20 l. A refractory gold flotation concentrate consisting mainly of pyrite and with a relatively high arsenopyrite content has been used for the study. The correlation between the pyrite and the arsenopyrite oxidation levels and the gold recoveries after cyanidation has been determined. The leaching rates of pyrite in the different experiments as well as the calculated oxygen uptake rates are presented. Anomalies in the gold recoveries between experiments with different types of bacterial are discussed.

Place, publisher, year, edition, pages
Warrendale, Pa: Minerals, Metals & Materials Society, 1993. p. 29-38
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-32623Local ID: 72d21ae0-0aea-11dd-ae49-000ea68e967bISBN: 0-87339-252-3 (print)OAI: oai:DiVA.org:ltu-32623DiVA, id: diva2:1005857
Conference
International Biohydrometallurgy Symposium : 22/08/1993 - 25/08/1993
Note
Godkänd; 1993; 20080415 (cira)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Sandström, Åke

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