| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for efficiently separating and recovering by concentrating a gold in leaching residue leached out the copper from copper-sulfide ore containing the gold, in a smelting process for recovering the copper from the copper-sulfide ore by a wetting method. <P>SOLUTION: The leaching residue of the copper-sulfide ore containing the gold is sifted into the sifted upper material and the sifted lower material, and the floatation to the obtained sifted lower material is carried out to separate the floated ore and the precipitated ore. Sulfur is removed from the sifted upper material obtained with the sifting, and the floated ore obtained with the flotation, and after oxidize-roasting the desulfurized material, the obtained oxidize-roasting material is dissolved with sulfuric acid to separate and recover the gold-containing residue from copper-dissolved solution. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
