DIFF Subgroup
B01J 37/0234 Full Title
Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts > Impregnation, coating or precipitation ( ; protection by coating B01J33/00)
B01J 37/0234 Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts > Impregnation, coating or precipitation ( ; protection by coating B01J33/00)