IPC Subgroup
B01J 27/28 Regeneration or reactivation
Introduced: July 1974
Last revised: January 2006
Full Title
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds > Regeneration or reactivation
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 27/3 of catalysts comprising compounds of sulfur, selenium or tellurium
- B01J 27/32 of catalysts comprising compounds of halogens