IPC Subgroup
B01J 29/4 of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
Introduced: January 1995
Last revised: January 2006
Full Title
Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites, pillared clays > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof > of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
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 29/42 containing iron group metals, noble metals or copper
- B01J 29/48 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium