Collaborative Innovation Center of Nonferrous Metals Henan Province;
School of Materials Science and Engineering;
Henan University of Science and Technology;
Luoyang;
471003;
China;
Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education;
Northeastern University;
Shenyang;
110819;
China;
Multistage desulfurization; High ferrotitanium; Thermite method; Multistage reduction; Deep reduction;