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PCE
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DIFF Subgroup
C01F 7/20

Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts

Introduced: September 1968

Full Title

Compounds of aluminium > Aluminium oxide; Aluminium hydroxide; Aluminates > Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • C01F 7/22 with halides or halogen acids IPC+CPC Available in IPC and CPC
  • C01F 7/24 with nitric acid or nitrogen oxides IPC+CPC Available in IPC and CPC
  • C01F 7/26 with sulfuric acids or sulfates IPC+CPC Available in IPC and CPC
  • C01F 7/28 with sulfurous acid IPC+CPC Available in IPC and CPC