A Study on LIX84-I Extraction Copper from Ammoniac Leach Solution of Copper Oxidized Ore

摘要

The extractant LIX84-I that extracted and stripped copper in the ammonia leach solution of copper oxidized ores solution of were mainly studied for the experimentation examined the influence of the LIX84-I concentration, the extraction time, the phase ratio, the pH, the stripping sulfuric acid concentration and the stripping time. Laboratory Investigations indicated that LIX84-I is really an efficient copper extractant with a maximum extraction of as high as 99.91% under the conditions of 5.23g/L Cu in leach solution, L1X84-I concentration 7%, 3 min mixtures, phase ratio 1/1 and pH > 4.5. The stripping can be conducted with the barren electrolyte as a stripping agent in which the sulfuric acid concentration remains about 150g/L, and a stripping rate of 99,92% is obtained.