Chromium, molybdenum or tungsten

Introduced: July 1974

Last revised: January 2006

Full Title

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group > of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium > Chromium, molybdenum or tungsten

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

4 direct subcodes

Child Classifications

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B01J 23/26 Chromium
B01J 23/28 Molybdenum
B01J 23/3 Tungsten
B01J 23/31 combined with bismuth