IPC Subgroup
C01B 32/21 After-treatment
Introduced: January 2017
Full Title
Carbon; Compounds thereof > Graphite > After-treatment
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3 direct subcodes
Child Classifications
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- C01B 32/215 Purification; Recovery or purification of graphite formed in iron making, e.g. kish graphite
- C01B 32/22 Intercalation
- C01B 32/23 Oxidation