DIFF Subgroup
C01F 7/422 by oxidation with a gaseous oxidator at a high temperature
Introduced: January 2022
Full Title
Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation > by oxidation with a gaseous oxidator at a high temperature
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2022.
Child Classifications
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