Re-Processing of Mining Waste: An Alternative Way to Secure Metal Supplies of European Union

Anne-Gwénaelle Guézennec 1 Françoise Bodénan 1 Guillaume Bertrand 1 Annabelle Fuentes 1 Gaël Bellenfant 1 Bruno Lemière 1 Patrick D'Hugues 1 Daniel Cassard 1 Maurice Save 1
1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
Abstract : In France, a recently started project handled by the French geological survey (BRGM) is aimed at identifying interesting old mining wastes deposits at the national level and assessing the metal recovery potential of these dumps. By crossing several databases and information from BRGM archives, 95 old mining sites with sizeable tailings dumps were identified. Selection criteria used to draw up this list were chosen mainly on the basis of the " Criticality Report " compiled for the European Commission in 2010, in which 14 mineral raw materials-12 critical metals-have been explicitly named as highly critical for the industrial development of the European Union. In most of these mines which date back hundreds of years or more, only a single or at best a couple of metals were extracted with processes whose performances were considerably lower than those used today. Knowing the type of ore commodities and the processes characteristics, it has been thus possible to assess the presence of valuable elements for each tailings dump. From this list an Ag-Pb French abandoned mine has then been selected as a case study to evaluate the potential of extraction of metals still remaining in the tailings with special focus on Ag and Sb. A global site characterization methodology is proposed which can be extrapolated to other sites according to key parameters.
Keywords : Mining wastes critical metal metal recovery databases ProMine (EU project)
Type de document :
Communication dans un congrès
Rewas 2013 : Enabling materials resource sustainability, Mar 2013, San Antonio, United States. pp.234-237, 2013, REWAS 2013: Enabling Materials Resource Sustainability. 〈10.1002/9781118679401.ch24〉
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Soumis le : lundi 31 août 2015 - 12:46:12
Dernière modification le : mercredi 30 mai 2018 - 14:26:02

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Anne-Gwénaelle Guézennec, Françoise Bodénan, Guillaume Bertrand, Annabelle Fuentes, Gaël Bellenfant, et al.. Re-Processing of Mining Waste: An Alternative Way to Secure Metal Supplies of European Union. Rewas 2013 : Enabling materials resource sustainability, Mar 2013, San Antonio, United States. pp.234-237, 2013, REWAS 2013: Enabling Materials Resource Sustainability. 〈10.1002/9781118679401.ch24〉. 〈hal-01188655〉

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