[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China
[2] Kunming Univ Sci & Technol, Minist Educ, Engn Res Ctr Met Energy Conservat & Emiss Reduct, Kunming 650093, Peoples R China
[3] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cle, Kunming 650093, Peoples R China
[4] Yunnan Copper Co Ltd, Southwest Copper Branch, Kunming 650093, Peoples R China