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Copper processing is a complicated process that begins with mining of the ore less than 1 copper and ends with sheets of 99 99 pure copper called cathodes which will ultimately be made into products for everyday use The most common types of ore copper oxide and copper sulfide undergo two different processes hydrometallurgy and pyrometallurgy respectively due to the different

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It is advisable first of all to examine the ore for visible gold and silver the presence of which might influence the choice of a method of treatment If no gold or native silver can be seen in the rock take a representative sample of about 300 grams and grind it up to pass a No 30 sieve

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Analysis of ore grade material is subject to more serious matrix effects Table 2 shows the analysis of six geochemical reference samples Allcott and Lakin 1978 for copper lead and zinc These six samples exhibit a wide range of percentage composition Fe 2 25 Ca 0 1 14 Mg 0 2 1 5 and Mn 0 015 0 5 as well as having ppm concentrations

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