... purifying and alloying metals and creating useful objects from metals is called metallurgy. ... help of a ball mill or ... be used to obtain a metal ...
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the process of extracting metals from rocks is ... s advanced extracting and refining methods help mining companies obtain a wide variety ... ball mill 212 b 16a. ...
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Extractive metallurgy has been defined as the science and art of extracting metals ... scrap metal to obtain pure metals. ... Ball Mill For Grinding Rocks ...
Mill (grinding) Attrition Mill; A ... W is the work index measured in a laboratory ball mill ... Quartz or silica is commonly used because it is inexpensive to obtain.
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Volcanic Minerals . ... move through the volcanic rocks and leach metals. ... fiberous mineral crystals that can form ball like shapes called spherulites ...