{HEAD ~ The invention} relates to a method for the recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in {TAIL ~ the leaching} of copper raw material 
{ HEAD ~ The invention } relates to a method for the recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in { TAIL ~ the leaching } of copper raw material
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