IPC Main Group
B01J 37/00 Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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
13 direct subcodes
Child Classifications
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- B01J 37/02 Impregnation, coating or precipitation
- B01J 37/04 Mixing
- B01J 37/06 Washing
- B01J 37/08 Heat treatment
- B01J 37/12 Oxidising
- B01J 37/16 Reducing
- B01J 37/2 Sulfiding
- B01J 37/22 Halogenating
- B01J 37/28 Phosphorising
- B01J 37/3 Ion-exchange
- B01J 37/32 Freeze drying, i.e. lyophilisation
- B01J 37/34 Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
- B01J 37/36 Biochemical methods