Catalysts, in general, characterised by their form or physical properties

Child Classifications

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• B01J 35/19
• B01J 35/20 characterised by their non-solid state
• B01J 35/30 characterised by their physical properties
• B01J 35/40 characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77)
• B01J 35/50 characterised by their shape or configuration
• B01J 35/60 characterised by their surface properties or porosity
• B01J 35/70 characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00)
• B01J 35/80 characterised by their amorphous structures