PDF Recovering gold from copper concentrate via the .
Copper II ions and oxygen are used as oxidants. Iron reports to the leaching residue as oxide and sulfur as elemental sulfur. Gold is dissolved and recovered in the third stage of the.
CN104294057A - Method for extracting gold from copper-oxide .
The invention discloses a method for extracting gold from copper-oxide oxidized gold ores. The method comprises the following steps: 1, carrying out ammonia-cyanide leaching on the copper-oxide oxidized gold ores to obtain an ore pulp; 2, adding hypochlorite into the ore pulp, and stirring to remove copper in order to obtain a copper removed ore pulp; 3, carrying out countercurrent washing on .
How I can separate gold from copper? - Quora
My answer is to getting the gold free of copper, and it works for any alloy. Raise the surface area/volume. Beat it until it is as thin as possible, or crush it and do your best to make dust/tiny fragments. Put the whole of the sample into a vessel in a fume hood, where you can avoid the fumes.
Extracting gold from copper - Finishing
A. Dissolve all with aqua regia, then ppt out the copper with NaCl, then filter out the copper chloride and then ppt out the gold as pure with sodium metabisulfite mixed with water. Filter the gold fines and smelt. You could try dissolution in Nitric acid and that leaves the residue as gold.
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