Abstract:A new process of extracting vanadium from molten vanadium slag by direct oxidation and sodium salt roasting method was introduced, with the aim to address heat waste of vanadium slag existing in vanadium extraction process through vanadium slag roasting. The feasibility of the new process was analyzed, and the simulation test was carried out in laboratory. The results show that under the new process condition, molten vanadium slag can be kept with good fluidity. Water leaching rate of vanadium is 50%~80%. Vanadium in roasted slag exists in form of sodium metavanadate. To conclude, the new process is feasible and can meet industrial production requirement.