Mining energy consumption as a function of ore grade decline: The case of lead and zinc

• Autorzy: Ricardo Magdalena , Valero Alicia , Palacios Jose-Luis , Valero Antonio

Identyfikatory

DOI

10.46873/2300-3960.1060

• Języki publikacji: EN

Abstrakty

EN

Demand 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.

Słowa kluczowe

EN

energy; ore grade; lead; zinc; beneficiation; tailings

PL

energia; jakość rudy; ołów; cynk; wzbogacanie; odpady przeróbcze

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2021
• Tom: Vol. 20, iss. 2
• Strony: 109--121
• Opis fizyczny: Bibliogr. 69 poz.

Twórcy

autor

Ricardo Magdalena

• CIRCE Institute e Universidad de Zaragoza, Spain

autor

Valero Alicia

• CIRCE Institute e Universidad de Zaragoza, Spain

autor

Palacios Jose-Luis

• Departamento de Ingeniería Mecánica, Escuela Politécnica Nacional de Ecuador, Ecuador

autor

Valero Antonio

• CIRCE Institute e Universidad de Zaragoza, Spain

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