000110713 001__ 110713
000110713 005__ 20220908120613.0
000110713 0247_ $$2doi$$a10.46873/2300-3960.1060
000110713 0248_ $$2sideral$$a127345
000110713 037__ $$aART-2021-127345
000110713 041__ $$aeng
000110713 100__ $$0(orcid)0000-0002-7115-5902$$aMagdalena, R.
000110713 245__ $$aMining energy consumption as a function of ore grade decline: the case of lead and zinc
000110713 260__ $$c2021
000110713 5060_ $$aAccess copy available to the general public$$fUnrestricted
000110713 5203_ $$aDemand for raw materials is increasing exponentially. To satisfy that demand, more minerals need to be mined from the Earth’s crust. As a result, minerals are being exhausted, and ore grades decline. Lower ore grade mines also mean more energy, which in turn entails fossil fuel emissions and more climate change. This paper estimates the specific energy for the beneficiation process of metals lead and zinc as case studies. The evaluation is performed with specialized software, HSC Chemistry which assesses the specific energy for every stage: comminution, flotation, and refining. Different scenarios have been established to simulate the behavior of a mine when it approaches depletion. Preliminary results show that energy consumption for lead would increase by five times when compared to the current situation if ore grades decrease until the level of tailings, while for zinc by almost two.
000110713 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/ENE2017-85224-R
000110713 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000110713 592__ $$a0.829$$b2021
000110713 594__ $$a6.4$$b2021
000110713 593__ $$aEnvironmental Engineering$$c2021$$dQ1
000110713 593__ $$aRenewable Energy, Sustainability and the Environment$$c2021$$dQ1
000110713 593__ $$aPollution$$c2021$$dQ1
000110713 593__ $$aGeology$$c2021$$dQ1
000110713 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000110713 700__ $$0(orcid)0000-0003-0702-733X$$aValero, A.$$uUniversidad de Zaragoza
000110713 700__ $$aPalacios, J. L.
000110713 700__ $$0(orcid)0000-0003-3330-1793$$aValero, A.$$uUniversidad de Zaragoza
000110713 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000110713 773__ $$g20, 2 (2021), 109-121$$tJournal of Sustainable Mining$$x2543-4950
000110713 8564_ $$s1179126$$uhttps://zaguan.unizar.es/record/110713/files/texto_completo.pdf$$yVersión publicada
000110713 8564_ $$s925604$$uhttps://zaguan.unizar.es/record/110713/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000110713 909CO $$ooai:zaguan.unizar.es:110713$$particulos$$pdriver
000110713 951__ $$a2022-09-08-11:58:54
000110713 980__ $$aARTICLE