1. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
3. Beijing Metallurgical Equipment Research & Design Institute Company Limited, China Metallurgical Group Corporation, Beijing 100029, P. R. China
4. Shanxi Taigang Stainless Steel Corporation Limited, No. 2 Steelmaking Plant, Taiyuan 030003, P. R. China