IPC Subgroup
C22B 34/1 Obtaining titanium, zirconium or hafnium
Introduced: July 1974
Last revised: January 2006
Full Title
Obtaining refractory metals > Obtaining titanium, zirconium or hafnium
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
2 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- C22B 34/12 Obtaining titanium
- C22B 34/14 Obtaining zirconium or hafnium