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PCE
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DIFF Subgroup
C01F 7/021

After-treatment of oxides or hydroxides

Introduced: January 2022

Full Title

Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > After-treatment of oxides or hydroxides

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

IPC defines codes here since 2022.

Child Classifications

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  • C01F 7/022 Classification since 2022 IPC+CPC Available in IPC and CPC
  • C01F 7/023 Grinding, deagglomeration or disintegration since 2022 IPC+CPC Available in IPC and CPC
  • C01F 7/025 Granulation or agglomeration since 2022 IPC+CPC Available in IPC and CPC
  • C01F 7/026 Making or stabilising dispersions since 2022 IPC+CPC Available in IPC and CPC
  • C01F 7/027 Treatment involving fusion or vaporisation since 2022 IPC+CPC Available in IPC and CPC