The flowsheet discussed in this study is for treatment of 100 tons per day oxide sulfide copper ore by the leaching process using sulfuric acid ferric sulfate solvent. This flowsheet would also be suitable for a larger tonnage by proper sizing of the various units of equipment. The flowsheet contemplates a six to seven day leach wash cycle with ...
The Copper Chloride Leaching Process consists of the following main steps: Concentrate repulp. Atmospheric chloride leaching. Leaching residue thickening, filtration, wash, and stabilization. Copper solvent extraction Silver recovery from raffinate. Copper electrowinning.
copper oxides have been in common use for some time. Prior to the development of the Sherritt Gordon process for nickel and cobalt in which copper is recovered as high grade copper sulfide, copper sulfides were economically recovered in a hydrometallurgical process only during the leaching of waste dumps. . Need for Hydrometallurgical Processes
Copper Leaching Practices. For centuries small amounts of copper have been recovered from acid mine drainage waters. In recent years, the expansion of copper bearing waste dump leaching for copper recovery has established a technological basis that is rapidly converting the art of copper leaching into a science.
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above the sulphide deposits. Sulphide copper minerals chalcocite, covellite and chalcopyrite, which are mostly