IPC Main Group
C22B 19/00 Obtaining zinc or zinc oxide
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- Subclass:
- PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
Related Keywords
[= commercial zinc]ZINC
7 direct subcodes
Child Classifications
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- C22B 19/02 Preliminary treatment of ores; Preliminary refining of zinc oxide
- C22B 19/04 Obtaining zinc by distilling
- C22B 19/2 Obtaining zinc otherwise than by distilling
- C22B 19/28 from muffle furnace residues
- C22B 19/3 from metallic residues or scraps
- C22B 19/32 Refining zinc
- C22B 19/34 Obtaining zinc oxide