Decreasing Ore Grades in Global Metallic Mining: A Theoretical Issue or a Global Reality?
Financiación H2020 / H2020 Funds
Resumen: Mining industry requires high amounts of energy to extract and process resources, including a variety of concentration and refining processes. Using energy consumption information, different sustainability issues can be addressed, such as the relationship with ore grade over the years, energy variations in electricity or fossil fuel use. A rigorous analysis and understanding of the energy intensity use in mining is the first step towards a more sustainable mining industry and, globally, better resource management. Numerous studies have focused on the energy consumption of mining projects, with analysis carried out primarily in one single country or one single region. This paper quantifies, on a global level, the relationship between ore grade and energy intensity. With the case of copper, the study has shown that the average copper ore grade is decreasing over time, while the energy consumption and the total material production in the mine increases. Analyzing only copper mines, the average ore grade has decreased approximately by 25% in just ten years. In that same period, the total energy consumption has increased at a higher rate than production (46% energy increase over 30% production increase).
Idioma: Inglés
DOI: 10.3390/resources5040036
Año: 2016
Publicado en: Resources (Basel) 5, 4 (2016), 36 [14 pp.]
ISSN: 2079-9276

Factor impacto SCIMAGO: 0.679 - Nature and Landscape Conservation (Q2) - Management, Monitoring, Policy and Law (Q2)

Financiación: info:eu-repo/grantAgreement/EC/H2020/691287/EU/Guiding European Policy toward a low-carbon economy. Modelling Energy system Development under Environmental And Socioeconomic constraints/MEDEAS
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2014-59933-R
Tipo y forma: Article (Published version)
Área (Departamento): Área Máquinas y Motores Térmi. (Dpto. Ingeniería Mecánica)

Creative Commons You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.


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