IPC Subgroup
C01B 32/318 characterised by the starting materials
Introduced: January 2017
Full Title
Carbon; Compounds thereof > Active carbon > Preparation > characterised by the starting materials
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
2 direct subcodes
Child Classifications
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- C01B 32/324 from waste materials, e.g. tyres or spent sulfite pulp liquor
- C01B 32/33 from distillation residues of coal or petroleum; from petroleum acid sludge