Differences of rotary kiln calcined bauxite and shaft calcined bauxite

According to different calcination methods, bauxite has the difference between rotary kiln and shaft kiln.

The bauxite calcined in the shaft kiln is evenly heated, has a high density, and has a relatively objective output; it is calcined by burning coal.

Rotary kiln calcined bauxite is relatively non-uniform in heating and low in density; it is calcined with coal powder, heavy oil, and gas fuel.

The two can be clearly distinguished from the appearance, and the latter is whitish in color.