New Process of Vanadium Extraction from Molten Vanadium Slag
Received:January 16, 2013   Revised:January 16, 2013   Accepted:January 18, 2013      Published Online:June 19, 2013
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DOI:10.3969/j.issn.1007-7545.2013.07.009
KeyWord:molten vanadium slag; sodium salt roasting; new process; blowing oxygen; leaching
           
AuthorInstitution
SONG Wen-chen 北京科技大学 钢铁冶金新技术国家重点实验室
LI Hong 北京科技大学 钢铁冶金新技术国家重点实验室
LI Kun 北京科技大学 钢铁冶金新技术国家重点实验室
ZHENG Quan 北京科技大学 钢铁冶金新技术国家重点实验室
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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.
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