000170155 001__ 170155
000170155 005__ 20260407115448.0
000170155 0247_ $$2doi$$a10.1016/j.envdev.2021.100683
000170155 0248_ $$2sideral$$a127404
000170155 037__ $$aART-2021-127404
000170155 041__ $$aeng
000170155 100__ $$0(orcid)0000-0001-9263-7321$$aCalvo, G.$$uUniversidad de Zaragoza
000170155 245__ $$aThe influence of ore grade decline on energy consumption and GhG emissions: the case of gold
000170155 260__ $$c2021
000170155 5060_ $$aAccess copy available to the general public$$fUnrestricted
000170155 5203_ $$aWith the rush of metal consumption in the last decades and the expected raw material demand driven by the clean and digital transition, a growing concern has emerged about the decline of ore grades. Research of the effect of ore grade decline on energy consumption during the processing of metals has conventionally been addressed using historical data and LCA analyses. This paper provides another approach using a computational model developed with specialized software, HSC Chemistry, to analyse this relationship using gold as a case study. Gold was selected as it is a precious metal widely used in various applications, from jewellery to electronic circuits and will be key for digitalizing the economy. Considering all mineral processing stages, it was verified that the specific energy and associated environmental impact would experience exponential growth as ore grade in the mines decreases. As one of the most energy intensive stages is comminution, fuelled by electricity, the associated environmental impact is very much dependent on the electricity mix of the producing country. This approach allows for an evaluation of the future production''s environmental impact for gold.
000170155 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-116851RB-I00
000170155 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000170155 590__ $$a4.69$$b2021
000170155 591__ $$aENVIRONMENTAL SCIENCES$$b99 / 279 = 0.355$$c2021$$dQ2$$eT2
000170155 592__ $$a0.967$$b2021
000170155 593__ $$aManagement, Monitoring, Policy and Law$$c2021$$dQ1
000170155 593__ $$aGeography, Planning and Development$$c2021$$dQ1
000170155 594__ $$a6.2$$b2021
000170155 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000170155 700__ $$aPalacios, J. L.
000170155 700__ $$0(orcid)0000-0003-3330-1793$$aValero, A.$$uUniversidad de Zaragoza
000170155 7102_ $$14013$$2205$$aUniversidad de Zaragoza$$bDpto. Didácticas Específicas$$cÁrea Didáctica Ciencias Exper.
000170155 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000170155 773__ $$g41 (2021), 100683[18 pp.]$$pEnviron. dev.$$tEnvironmental Development$$x2211-4645
000170155 8564_ $$s762575$$uhttps://zaguan.unizar.es/record/170155/files/texto_completo.pdf$$yPostprint
000170155 8564_ $$s2315396$$uhttps://zaguan.unizar.es/record/170155/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000170155 909CO $$ooai:zaguan.unizar.es:170155$$particulos$$pdriver
000170155 951__ $$a2026-03-26-14:30:40
000170155 980__ $$aARTICLE