Industrial Experimental Research on Extraction of Copper by N902 in Cobalt Sulfate Leaching Solution

In the research,N902 is adopted for extraction of the copper in cobalt sulfate leaching solution,the following items are also investigated: effect of extraction phase ratio(O∶A),copper content in original solution and extraction time on copper extraction rate,as well as the effect of stripping phase ratio(O∶A),stripping time,acidity and strip liquor's copper concentration on copper stripping rate,and then the proper production conditions for copper extraction is determined,when the concentration of copper ion is 6~7 g/L,it is better to use 15% N902 to extract copper in sulfuric acid medium,so the first stage extraction rate of copper can be 95%;if new prepared 200 g/L sulfuric acid is used for circular stripping of copper loaded organic phase,the first stage stripping rate of copper can reach 95%.