Bayer process
Refining bauxite ore
The Bayer process is an industrial method for extracting alumina (aluminum oxide) from bauxite ore, developed by Austrian chemist Karl Bayer in 1888.
Bauxite is dissolved in sodium hydroxide solution under heat and pressure, impurities are filtered out, and pure alumina precipitates.
This alumina then feeds the Hall-Héroult process to produce metallic aluminum.
Nearly all commercial aluminum production begins with the Bayer process.
- red mudAlkaline aluminum refinery waste
- leachingDissolving out by liquid
- precipitationAtmospheric water deposit
- digestionBodily food breakdown
- settlerOne who colonizes territory
iron oxides · crystallization · filtration · silica · calcination · sodium hydroxide · caustic soda · lime · autoclave · pressure vessel · titanium dioxide · caustic · soda ash · refinery · white powder · water · ore · chemical