IPC Subgroup
B01J 27/02 Sulfur, selenium or tellurium; Compounds thereof
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 > Sulfur, selenium or tellurium; Compounds thereof
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
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B01J 27/04 Sulfides
- B01J 27/053 Sulfates
- B01J 27/057 Selenium or tellurium; Compounds thereof