CPC Subgroup
B01J 21/06 Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
Full Title
Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium > Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
3 direct subcodes
Child Classifications
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- B01J 21/08 Silica