CPC Subgroup
C22B 19/04 Obtaining zinc by distilling
Full Title
Obtaining zinc or zinc oxide > Obtaining zinc by distilling
6 direct subcodes
Child Classifications
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- C22B 19/06 in muffle furnaces
- C22B 19/08 in blast furnaces
- C22B 19/10 in reverberatory furnaces
- C22B 19/12 in crucible furnaces
- C22B 19/14 in vertical retorts
- C22B 19/16 Distilling vessels