1. School of Zijin Mining, Fuzhou University, Fuzhou, Fujian, China
2. CONACYT Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
3. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, China
4. CINVESTAV-IPN, Unidad Saltillo, Saltillo, Coah., México
5. Instituto de Metalurgia, Universidad Autónoma de San Luís Potosí, San Luis Potosí, Mexico