Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds

Introduced: July 1974

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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B01J 27/02 Sulfur, selenium or tellurium; Compounds thereof since 1974 IPC+CPC Available in IPC and CPC
B01J 27/06 Halogens; Compounds thereof since 1974 IPC+CPC Available in IPC and CPC
B01J 27/14 Phosphorus; Compounds thereof since 1974 IPC+CPC Available in IPC and CPC
B01J 27/20 Carbon compounds since 1974 IPC+CPC Available in IPC and CPC
B01J 27/24 Nitrogen compounds since 1974 IPC+CPC Available in IPC and CPC
B01J 27/28 Regeneration or reactivation since 1974 +1 CPC IPC+CPC Available in IPC and CPC