Innovative Biohydrometallurgical Approaches in the EU Project FAME

Agosto 2017

<jats:p>The FAME (Flexible and Mobile Economic Processing Technologies) project targets the development of flexible and economic processing technologies for small and low-grade European ore deposits with complex mineralogy, targeting greisen, skarn and pegmatite ores. Amongst the valuable elements to be recovered are W, Sn, Li and minor constituents like In, Ge, Ga, Nb or Ta. To improve the processing of by-product sulfides to recover critical elements like In or Ga and to develop innovative processing strategies for raw materials, biohydrometallurgical technologies are investigated. There are different approaches in FAME for the biohydrometallurgical recovery of valuable metals from low grade ores: 1) the extraction of Li from zinnwaldite and lepidolite, 2) the heap leaching of low grade sulfide ore unsuitable for conventional processing to recover Zn and In, and 3) the bioleaching of sulfide concentrates in a two-stage tank process for recovery of Zn and Cu. So far the most promising results were achieved for heap-leaching of low-grade Zn-In ores achieving 7.4 ppm In in the leaching solution and for Li extraction (28%) from zinnwaldite.</jats:p>

Autores da comunidade :

• 

  M

  Maria Cristina da Costa Vila

  ist429609

  Afiliações e fontes

  IST > CERENA

  Centro de Recursos Naturais e Ambiente

  De: orcid

  ID: 38626871

VoR - Versão publicada

Trans Tech Publications, Ltd.

Solid State Phenomena

307

310

262

1662-9779

10.4028/www.scientific.net/SSP.262.307

earth-and-related-environmental-sciences - Ciências da Terra e Ciências do Ambiente

Palavras-chave

• Condensed Matter Physics
• General Materials Science
• Atomic and Molecular Physics, and Optics

eng - Inglês