000127742 001__ 127742
000127742 005__ 20231006132949.0
000127742 0247_ $$2doi$$a10.3390/min11101123
000127742 0248_ $$2sideral$$a127020
000127742 037__ $$aART-2021-127020
000127742 041__ $$aeng
000127742 100__ $$0(orcid)0000-0002-7115-5902$$aMagdalena R.
000127742 245__ $$aSimulation to recover niobium and tantalum from the tin slags of the old penouta mine: A case study
000127742 260__ $$c2021
000127742 5060_ $$aAccess copy available to the general public$$fUnrestricted
000127742 5203_ $$aDemand for niobium and tantalum is increasing exponentially as these are essential ingre-dients for the manufacture of, among others, capacitors in technological devices and ferroniobium. Mine tailings rich in such elements could constitute an important source of Nb and Ta in the future and alleviate potential supply risks. This paper evaluates the possibility of recovering niobium and tantalum from the slags generated during the tin beneficiation process of mine tailings from the old Penouta mine, located in Spain. To do so, a simulation of the processes required to bene-ficiate and refine both elements is carried out. After carbothermic tin reduction, the slags are sent to a hydrometallurgical process where niobium oxide and tantalum oxide are obtained at the end. Reagents, water, and energy consumption, in addition to emissions, effluents, and product yields, are assessed. Certain factors were identified as critical, and recirculation was encouraged in the model to maximise production and minimise reagents’ use and wastes. With this simulation, considering 3000 production hours per year, the metal output from the tailings of the old mine could cover around 1% and 7.4% of the world annual Nb and Ta demand, respectively. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
000127742 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-116851RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/RTC-2017-6629-5
000127742 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000127742 590__ $$a2.818$$b2021
000127742 591__ $$aGEOCHEMISTRY & GEOPHYSICS$$b42 / 87 = 0.483$$c2021$$dQ2$$eT2
000127742 591__ $$aMINING & MINERAL PROCESSING$$b8 / 20 = 0.4$$c2021$$dQ2$$eT2
000127742 591__ $$aMINERALOGY$$b11 / 30 = 0.367$$c2021$$dQ2$$eT2
000127742 592__ $$a0.522$$b2021
000127742 593__ $$aGeotechnical Engineering and Engineering Geology$$c2021$$dQ2
000127742 593__ $$aGeology$$c2021$$dQ2
000127742 594__ $$a3.7$$b2021
000127742 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000127742 700__ $$0(orcid)0000-0003-3330-1793$$aValero A.$$uUniversidad de Zaragoza
000127742 700__ $$0(orcid)0000-0001-9263-7321$$aCalvo G.$$uUniversidad de Zaragoza
000127742 700__ $$aAlguacil F.J.
000127742 700__ $$aLópez F.A.
000127742 7102_ $$14013$$2205$$aUniversidad de Zaragoza$$bDpto. Didácticas Específicas$$cÁrea Didáctica Ciencias Exper.
000127742 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000127742 773__ $$g11, 10 (2021), 1123 [12 pp]$$pMinerals (Basel)$$tMinerals$$x2075-163X
000127742 8564_ $$s1795147$$uhttps://zaguan.unizar.es/record/127742/files/texto_completo.pdf$$yVersión publicada
000127742 8564_ $$s2706258$$uhttps://zaguan.unizar.es/record/127742/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000127742 909CO $$ooai:zaguan.unizar.es:127742$$particulos$$pdriver
000127742 951__ $$a2023-10-06-12:36:05
000127742 980__ $$aARTICLE