IPC Subgroup
C01F 7/04 Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
Introduced: September 1968
Last revised: January 2022
Full Title
Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS
7 direct subcodes
Child Classifications
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- C01F 7/043 Lithium aluminates
- C01F 7/046 Stabilisation of aluminates
- C01F 7/06 by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F 7/08 by treating aluminous minerals with sodium carbonate, e.g. sinter processes
- C01F 7/1 by treating aluminous minerals with alkali sulfates and reducing agents
- C01F 7/12 Alkali metal aluminates from alkaline earth metal aluminates
- C01F 7/14 Aluminium oxide or hydroxide from alkali metal aluminates