Physical Chemical Properties of Leachate in the Process of Improving Vanadium Leaching From Petroleum Coke: Part I

Petroleum coke is the main raw material to produce carbon anode. The content of vanadium in petroleum coke seriously affects the quality of carbon anode. Physical chemical properties of leachate in the process of improving vanadium leaching from petroleum coke were investigated. The effects of different parameters on vanadium removal were chiefly introduced. Systematic studies indicate that the high removal can be achieved under the following conditions: 10 g of petroleum coke, 20 mL of oxidation, 3 h of leaching time, 500 W of microwave power, and 400 mg/L of surfactant amount. Physical chemical properties of leachate changed along with the parameters. This is one reason for the leaching amount of change.