Zhigang Bai
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Zhigang Bai has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Nannan Xue
School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
1 shared publication - Qiushi Zheng
School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
1 shared publication - Yimin Zhang
School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
1 shared publication - Zilin Dai
Institute of Resources Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510620, China
1 shared publication
Latest Publications
- Open Access
Extraction of Vanadium from High Phosphorus Vanadium Containing Waste Residue via Carbonation: Optimization Using Response Surface Methodology
Vanadium (V) was successfully extracted from a high phosphorus vanadium residue (HPVR) through a carbonation process. Vanadium within HPVR substitutes for Fe in the mineral structure of Ca9(Fe,V)(PO4)7 at elevated temperatures, Na2CO3 reacts with V to form sodium metavanadate (NaVO3), concurrently generating calcium carbonate (CaCO3) through its interaction with Ca9(Fe,V)(PO4)7. Subsequently, V is liberated and leached by water, dissolving in the aqueous phase as metavanadate ions (VO3−). Crucial factors influencing V leaching efficiency include roasting time, roasting temperature, and the amount of Na2CO3 utilized. Response Surface Methodology (RSM) was employed. The optimized parameters determined were as follows: a roasting temperature of 850 °C, a roasting duration of 120 min, a Na2CO3 dosage of 8.01%, a liquid-to-solid ratio (L/S) of 3, and a leaching time of 60 min. Under these conditions, a remarkable V leaching efficiency of 83.82% was achieved. This study underscores the viability of a simplified approach for treating solid waste containing metal slag, which not only mitigates environmental pollution but also yields valuable metals.
Open AccessExtraction of Vanadium from High Phosphorus Vanadium Containing Waste Residue via Carbonation: Optimization Using Response Surface Methodology
Vanadium (V) was successfully extracted from a high phosphorus vanadium residue (HPVR) through a carbonation process. Vanadium within HPVR substitutes for Fe in the mineral structure of Ca9(Fe,V)(PO4)7 at elevated temperatures, Na2CO3 reacts with V to form sodium metavanadate (NaVO3), concurrently generating calcium carbonate (CaCO3) through its interaction with Ca9(Fe,V)(PO4)7. Subsequently, V is liberated and leached by water, dissolving in the aqueous phase as metavanadate ions (VO3−). Crucial factors influencing V leaching efficiency include roasting time, roasting temperature, and the amount of Na2CO3 utilized. Response Surface Methodology (RSM) was employed. The optimized parameters determined were as follows: a roasting temperature of 850 °C, a roasting duration of 120 min, a Na2CO3 dosage of 8.01%, a liquid-to-solid ratio (L/S) of 3, and a leaching time of 60 min. Under these conditions, a remarkable V leaching efficiency of 83.82% was achieved. This study underscores the viability of a simplified approach for treating solid waste containing metal slag, which not only mitigates environmental pollution but also yields valuable metals.