PROCESS FOR MAKING SHAPED COPPER ARTICLES

摘要

This invention relates to a process for making shaped copper articles directly from a copper-bearing material wherein a copper bearing material (10) is contacted with an effective amount of an aqueous leaching solution (40) to form a copper-rich aqueous solution which is contacted with a water-insoluble extractant in which copper ions are transferred from the former to the latter (20, 18) forming a copper-rich extractant (51) and a copper-depleated aqueous solution (73) which are separated followed by contacting the copper-rich extractant with an aqueous stripping solution (60) transferring the copper ions from the former to the latter thereby creating a copper-rich aqueous stripping solution which is piped to an electrowinning cell (124) wherein the copper ions contained in the solution are deposited as copper powder on the cathodes (126), followed by the removal of the copper powder from the cathode (129), followed by extruding, forging, or molding the copper powder (154) to produce a shaped copper article.