Use Of Heap Leaching Technology For Beneficiation

Historically, the global copper, nickel, lead, and zinc mining market declined at a compound annual growth rate (CAGR) of -0.10%. This was mainly due to the sustained fall in commodity prices during the historic period.

The global copper, nickel, lead, and zinc mining market is expected to grow to nearly $165 billion in 2021 at a CAGR of about 3%. Going forward, the market is expected to grow faster in comparison to the historic period. This can be attributed to growing demand for power cables and wires from electrical, electronic and construction businesses.

Find TBRC’s report on the copper, nickel, lead, and zinc mining market: https://www.thebusinessresearchcompany.com/report/copper-nickel-lead-and-zinc-mining-global-market-report-2018

Heap leaching technology has become the preferred approach for beneficiation and has increased the productivity of the mining industry by helping to economically recover minerals and metals from low grade ores. Beneficiation is the process whereby the extracted material is reduced to particles that can be separated into mineral and waste, the former suitable for further processing or direct use. In heap leaching, ore is crushed, agglomerated and is stacked onto an impermeable pad, creating the heap. Heap is then irrigated with the leaching agent. As the leachate moves through the heap, the target metal is dissolved into the aqueous solution through chemical reaction with the leachate. The solution is then collected and will be moved further for metal extraction. Major advantages of heap leaching include simple design, lower capital investments and operational costs, lower energy and water requirements. Heap leaching is frequently used in gold and copper industries, but now it is gaining acceptance in other mining industries like silver, uranium, nickel and zinc.

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The copper, nickel, lead and zinc mining industries include companies developing mine sites, mining and converting ores into copper, nickel, lead or zinc content. Mining is either done through underground and surface mining techniques. Underground mining are used to reach deeper deposits which requires digging tunnels or shafts to reach buried ore deposits. Surface mining is used for less valuable deposits and is done by removing surface vegetation or layers of bedrock to reach ore deposits. 80% of zinc mining is extracted through underground mining whereas 90% of copper mining is done in open pits.

The top five companies covered are Glencore plc, Corporacion Nacional del Cobre de Chile (Codelco), BHP Billiton Ltd, Grupo Mexico and Freeport-McMoRan Inc. Glencore Plc. was the largest competitor in the copper, nickel, lead and zinc mining market in 2017.

The countries covered are USA, China, Germany, Brazil, Japan, UK, Spain, Russia, France, Australia, Italy, India and rest of the world.

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