Obtaining zinc or zinc oxide

Introduced: September 1968

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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C22B 19/02 Preliminary treatment of ores; Preliminary refining of zinc oxide IPC+CPC Available in IPC and CPC
C22B 19/04 Obtaining zinc by distilling IPC+CPC Available in IPC and CPC
C22B 19/20 Obtaining zinc otherwise than by distilling +3 CPC IPC+CPC Available in IPC and CPC
C22B 19/28 from muffle furnace residues IPC+CPC Available in IPC and CPC
C22B 19/30 from metallic residues or scraps IPC+CPC Available in IPC and CPC
C22B 19/32 Refining zinc IPC+CPC Available in IPC and CPC
C22B 19/34 Obtaining zinc oxide (purifying zinc oxide C01G9/02) IPC+CPC Available in IPC and CPC