IPC Subgroup
B01J 20/3 Processes for preparing, regenerating or reactivating
Introduced: January 1980
Last revised: January 2006
Full Title
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof > Processes for preparing, regenerating or reactivating
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2 direct subcodes
Child Classifications
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- B01J 20/32 Impregnating or coating
- B01J 20/34 Regenerating or reactivating