Abstract：The spray granulated molybdenum powders were prepared by centrifugal spray drying.The effects of binder content of slurry on the morphology of spray granulated molybdenum powders and their apparent density were investigated. The results show that when the mass fraction of binder content in slurry is less than 2.2%, most of the spray granulated molybdenum powders are fine and broken particles, and their apparent density increases with the increase of binder content. While the binder content of slurry is more than 2.2%, most of spray granulated molybdenum powders are non-spherical particles with rough surface, and their apparent density decreases with the increases of binder content.

Keywords：molybdenum powders; binder; spray granulation