Gold Refinery Slag. In general, slag from smelting process arises from extraneous materials such as rust and oxides oxidation of elements in the charge (e.g. iron, copper, zinc) residues from fuels fluxes employed in the process (silica, borax, sodium nitrate, sodium carbonate, fluorspar) crucible erosion.
The entire process of gold mining can be broken down roughly into four steps: prospecting, mining, extracting and refining. Early discoveries of gold relied on the blind luck of someone spotting a yellow glint in a stream or in a crack between rocks. But the search today is more systematic and precise. First, geologists know more about how gold forms.
major steps in the process of mining and refining gold
HowStuffWorks "Prospecting and Mining Gold". The entire process of gold mining can be broken down roughly into four steps: prospecting, mining, extracting and refining. HowStuffWorks "Extracting Gold". 23 Feb 2009 The first step in this process is breaking down large chunks of rock into smaller pieces.
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The Mining Process. 5. Leaching and adsorption A slurry of ground ore, water and a weak cyanide solution is fed into large steel leach tanks where the gold and silver are dissolved. Following this leaching process the slurry passes through six adsorption tanks containing carbon granules which adsorb the gold and silver.