Microwave suspension roasting for efficient vanadium extraction from fine-grained shale: a dual mechanism of sintering suppression and oxidation enhancement

Key Points

• The research aims to develop an efficient method for vanadium extraction from fine-grained shale using microwave suspension roasting.
• Implemented a microwave suspension roasting (MSR) process with fluidization techniques.
• Focused on optimizing conditions to suppress sintering and enhance oxidation.
• Utilized fine-grained vanadium-bearing shale as the primary material.
• MSR demonstrated significant improvement in vanadium extraction efficiency.
• Sintering suppression was achieved, leading to better material processing.
• Oxidation enhancement contributed to increased vanadium availability.