IPC Main Group
B01J 21/00 Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
Introduced: July 1974
Last revised: January 2006
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
Related Keywords
catalysts comprising SILICA
8 direct subcodes
Child Classifications
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- B01J 21/02 Boron or aluminium; Oxides or hydroxides thereof
- B01J 21/06 Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J 21/1 Magnesium; Oxides or hydroxides thereof
- B01J 21/12 Silica and alumina
- B01J 21/14 Silica and magnesia
- B01J 21/16 Clays or other mineral silicates
- B01J 21/18 Carbon
- B01J 21/2 Regeneration or reactivation