Effect of Calcium Sulfate and Silica Gel on Vanadium Leaching Characteristics from Vanadium Titanomagnetite via Calcification Roasting–Sulfuric Acid Leaching: Formation Mechanism and Process Enhancement. - Chen, Jianli; Zheng, Yu; He, Benliu; Chen, Shuzhong; Wang, Shuai; Chen, Feng; Cui, Shiyuan; Liu, Jing; Yang, Lingzhi; Guo, Yufeng; Qiu, Guanzhou (Metals (2075-4701), 2025)