Payable copper production was 1.17Mt of copper, electrowon copper cathode output was 116,300 tons, payable gold in concentrate was 139,000oz and payable silver in concentrate was 5.9Moz. In 2007, the copper mine boosted output by 18.2% after producing 1.245 million tons of copper contained in concrete and 238,357 tons in …
The use of water in mining has the potential to affect the quality of surrounding surface water and groundwater. In response to environmental concerns and government regulations, the mining industry worldwide increasingly monitors water discharged from mine sites, and has implemented a number of strategies to prevent water pollution.
Copper processing, the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products. In its pure form or as an alloy, copper (Cu) is one of the most important metals in society.
The average grade of copper ores in the 21st century is below 0.6% copper, with a proportion of economic ore minerals (including copper) being less than 2% of the total volume of the ore rock. A key objective in the metallurgical treatment of any ore is the separation of ore minerals from gangue minerals within the rock.
In 2004, the mine produced 147,602t of Grade A-standard copper cathode, treating 18.2Mt of ore grading 1.0% Cu. Its production in 2005 was 123,379t of copper in cathodes and concentrates. In 2009, 136,984t of copper was produced by the Zaldívar mine at an average cost of $1.17 a pound.