Study on Leaching of Zinc Oxide Ores
Received:March 26, 2018   Revised:March 27, 2018   Accepted:March 29, 2018      Published Online:July 16, 2018
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DOI:doi:10.3969/j.issn.1007-7545.2018.08.001
KeyWord:ammonia- ammonium chloride system; zinc oxide ores; leaching rate; zinc
              
AuthorInstitution
Xia Zhimei 湖南工业大学冶金与材料工程学院
Jin Wei 湖南工业大学冶金与材料工程学院
Gao Zeping 湖南工业大学冶金与材料工程学院
Zhong Juan 湖南工业大学冶金与材料工程学院
Ouyang Zhen 湖南工业大学冶金与材料工程学院
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Abstract:
      Leaching behavior of high iron & copper bearing lead-zinc ores in ammonia-ammonium chloride (NH3-H2O-NH4Cl) system was studied. Effects of leaching temperature, total ammonia concentration, leaching time, and L/S on zinc leaching rate were investigated. The results show that zinc leaching rate is 94.8% under the optimum conditions including total ammonia concentration of 7.5 mol/L, leaching temperature of 50 ℃, L/S of 8︰1, and leaching time of 2 h.
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