2006•Nonferrous MetalsRequires access

Chloride Leaching Study on Chalcopyrite with Nitric Acid Catalyzing Oxidation

Wan Xing-jun

Abstract

The experimental reaction principle was discussed.The influence factors on oxidizing and leaching were tested and investigated.The higher the nitric acid concentration is,the quicker the rate of the catalyzing and oxidizing reaction will.The best temperature of oxidation is 95℃.The optimum leaching conditions are that the temperature ranges from 95℃ to 100℃,the acid concentration of leaching liquid is 0.5 mol/L,oxygen is conducted into liquid from bottom.

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Key concepts: Oxidizing agent, Leaching (pedology), Nitric acid, Chalcopyrite, Chemistry, Inorganic chemistry, Oxygen, Selective leaching