Digestion

Introduced: January 2022

Full Title

Full titles differ between systems:

IPC:

Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom > by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process > Digestion

CPC:

Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom (C01F7/028 takes precedence) > by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process (obtaining aluminium oxide or hydroxide from the resulting aluminate solution C01F7/14) > Digestion

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2022.

Child Classifications

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C01F 7/0626 Processes making use of tube digestion only since 2022 IPC+CPC Available in IPC and CPC
C01F 7/0633 characterised by the use of additives since 2022 IPC+CPC Available in IPC and CPC
C01F 7/064 Apparatus for digestion, e.g. digestor vessels or heat exchangers since 2022 IPC+CPC Available in IPC and CPC