A novel technology of molybdenum extraction from low grade Ni–Mo ore

A novel technology characterized by higher recovery of molybdenum and production of high value added ammonium molybdate was developed to recover molybdenum from low grade Ni–Mo ore. The brief flow of the novel technology includes roasting, Na2CO3 and NaOH mixed alkali leaching, ion exchange enrichment molybdenum, purifying the desorption liquor, removal of vanadium and crystallization ammonium molybdate. The total recovery of ammonium reached 89.06%, which was higher than the current applied technology and the ammonium molybdate met standard specification.