c. Alumina processing industries.
Aluminum metal cannot be smelted from its
ore, or bauxite, using the same methods as for smelting other metals.
aluminum can be produced, alumina must first be separated from waste impurities in
The separation method is called the Bayer alumina process and
involves a chemical process.
(a) Bauxite storage.
Large, low shed, or open stockpiles.
Rail or dock
unloading facility nearby.
Conveyor system linking it to crushing and grinding
(b) Crushing and grinding building.
Conveyor leading into it from storage
Dusty white appearance.
(c) Autoclave (Digester) building.
Vents or stacks on
Steam lines leading into it.
(d) Filter press building.
Long, low structure.
May have sawtooth roof.
Located between autoclave and precipitator buildings.
(e) Settling tanks.
Large, low, open tanks.
Located near filter press
(f) Precipitator building.
Large, tall, rectangular
sawtooth roof. Contains a large number of tall, silo-like tanks.
(g) Rotary kilns.
Long, pipe-like tubes.
May have stack(s) associated.