TREATMENT OF SULPHURIC ACID SOLUTIONS CONTAINING TELLURIUM, COPPER SULPHATE AND MINOR IMPURITY ELEMENTS

摘要

-12-Abstract of the Disclosure:A process for the treatment of a sulphuric acidsolution containing tellurium, copper sulphate, and minorimpurity elements is disclosed. The process comprises thesteps of recirculating the sulphuric acid solution betweena first tank containing such solution and a second reactortank containing a bed of copper particles for a timeinterval sufficient to cement substantially all thetellurium present in the leach liquor as copper telluride,adding oxygen to the first and/or second tank to form acopper sulphate solution during recirculation of thesulphuric acid solution between the first and secondtanks, and separating the cemented copper telluride fromthe copper sulphate solution.