Catalyst, in powder form, consisting of a mixture of metal oxides fixed to a silicon dioxide support, with a total content by weight of molybdenum, bismuth and iron of 20 % or more but not more than 50 %, for use in the manufacture of acrylonitrile
Restriction on entry into free circulation
condition:B,certificate:9009,action:29|condition:B,certificate:9010,action:29|condition:B,certificate:9017,action:26|condition:B,action:09