Alumina Refining

Bauxite is washed, ground and dissolved in sodium hydroxide at high pressure and temperature. The resulting liquid contains undissolved bauxite ‘red mud’ residues containing iron, silicon and titanium, which sink gradually to the bottom of the tank and are removed: the remaining clear solution of sodium aluminate is pumped off.

For use in the related filtration stages, Tianyuan offers engineered fabrics and filters that have proven their efficiency in leading refineries all over the world.

Pan filter

Rotary drum filter

horizontal belt filter

vertical leaf filter