CPC Subgroup
B01J 23/20 Vanadium, niobium or tantalum
Full Title
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) > of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium > Vanadium, niobium or tantalum
1 direct subcode
Child Classifications
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- B01J 23/22 Vanadium