Energy efficiency • Energy intensity in copper and gold mining

Summary: Mines are faced with numerous challenges, such as falling raw material prices, declining metal grades in the ores and higher energy prices. Especially because ore processing is particularly energy-intensive, the industry is again focusing on the saving of energy. This report shows what are the key energy saving considerations in the copper and gold mining sectors.

1 Introduction

In recent years, many mining companies have been able to reduce their specific energy requirements in the ore processing of base metals, gold, silver and platinum group metals, thereby improving their competitiveness. The reasons are complex and involve, for example, the closure of unprofitable mines, technological improvements such as modern grinding processes or improved energy management. But there are also opposing tendencies. For example, the electricity demand for Chile’s copper production is expected to increase by 53.5 % between 2015 and 2026, although the planned...

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