Assertion: alumina | /r/HasProperty | produced
Facets:
value: from bauxite
type: OTHER
value: by washing the rocky material bauxite
type: MANNER
Source sentences:
text: Some alumina is still produced by melting bauxite in an electric furnace, in a process devised for the abrasives industry early in the 20th century, but most is now extracted from bauxite through the Bayer process, which was developed for the aluminum industry in 1888.
text: Aluminum oxide is produced by washing the rocky material bauxite with a hot solution of sodium hydroxide (NaOH).
text: Alumina is produced from bauxite, an ore that is mined from topsoil in various tropical and subtropical regions.