THE RECOVERY METHOD OF VALUBLE METALS INCLUDED IN CONVERTER SLAG AT COPPER SMELTER

摘要

The present invention relates to a method for collecting valuable metals from a copper converter slag which comprises: a pulverizing step of pulverizing a reactant entered through copper converter slag; a leaching step of leaching a product by adding sulfuric acid to the product generated through the pulverizing step; a copper collecting step of extracting copper sulfate to collect copper by reacting the reactant generated in the leaching step with 2-hydroxy-5-nonylacetophenone oxime; an iron collecting step of extracting iron oxide to collect iron by pressing, precipitating, and heating the reactant remained after the copper sulfate is extracted in the copper collecting step; and a neutralizing and precipitating step of neutralizing and precipitating the reactant remained after the iron oxide is extracted in the iron collecting step; a zinc collecting step of extracting zinc sulfate to collect zinc by reacting the product generated in the neutralizing and precipitating step with di-2-ethylhexyl-phosphoric acid; a cobalt collecting step of extracting cobalt sulfate to collect cobalt by reacting the reactant remained after the zinc sulfate is extracted in the zinc collecting step with bis (2,4,4-trimethylpenthyl) phosphinic acid; and a nickel collecting step of extracting nickel carbonate to collect nickel by neutralizing the reactant remained after the cobalt sulfate is extracted in the cobalt collecting step. [Reference numerals] (AA) Start; (BB) End; (S101) Pulverizing step; (S103) Leaching step; (S105) Copper collecting step; (S107) Iron collecting step; (S109) Neutralizing and precipitating step; (S111) Zinc collecting step; (S113) Cobalt collecting step; (S115) Nickel collecting step