IPC Subgroup
C22B 13/08 Separating metals from lead by precipitating, e.g. by Parkes process
Introduced: September 1968
Last revised: January 2006
Full Title
Obtaining lead > Refining > Separating metals from lead by precipitating, e.g. by Parkes process
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