Abstract
The roasting of molybdenum concentrates using NaCl has been carried out. During the roasting process, Mo is present both as a gas (25–40%) and as solid residue (60–75%). Molybdenum chloride and oxychloride condensate both dissolve in the alkaline solution with molybdenum recovery up to 100%. The results of the study show that 30–32% of molybdenum (sodium molybdate) in the roasted residue is water-soluble. This paper proposes a methodology for leaching roasted residue in two stages: first by water, then by alkaline solutions. Using this methodology, molybdenum recovery from the roasted residue exceeds 99%. It was determined that up to 40% of the sulfur contained in the concentrate remains in the roasted residue after the roasting process in the form of sodium sulfate, which enables a significant reduction of SO2 generation. The results were achieved under optimal roasting conditions: a roasting temperature of 420–430°С, NaCl ratio of 100% (from concentrate weight), and 90min roasting time.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
