Method for preparing low-sodium spherical alumina powder through centrifugal spray tower

The invention relates to the technical field of inorganic nonmetallic mineral powder production, in particular to a method for preparing low-sodium spherical aluminum oxide powder through a centrifugal spray tower. According to the method for preparing low-sodium spherical alumina powder by using the centrifugal spray tower, industrial aluminum oxide or aluminum hydroxide serves as a main raw material, the industrial aluminum oxide or aluminum hydroxide, water, a dispersing agent, a sodium removing agent and a binding agent are mixed and subjected to ball milling to be prepared into slurry, then the slurry is atomized and dried through the centrifugal spray tower to be prepared into spherical granulated powder, finally the obtained spherical granulated powder is calcined, and the low-sodium spherical aluminum oxide powder is prepared. According to the method for preparing low-sodium spherical alumina powder through the centrifugal spray tower, the prepared spherical alumina powder hasthe advantages of low sod