1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
2. Key Laboratory of Biometallurgy of Ministry of Education, Changsha 410083, China
3. Kai Diengineering Technology Co., Ltd., Changsha 410000, Hunan, China
4. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
5. Sino-Platinum Metals Resources (Yimen) Co., Ltd., Yuxi 651100, Yunnan, China