3815 1990 55

3815199055

Components for a catalyst system, imported as single components or as set, made up of at least one of the following preparations: -ceramic material (CAS RN 66402-68-4), -molybdenum oxide and nickel oxide supported on aluminium oxide, -molybdenum oxide, nickel oxide and aluminium phosphate supported on aluminium oxide, -molybdenum oxide, nickel oxide, aluminium phosphate, silica, and molybdenum supported on aluminium oxide, for use against organic and inorganic impurities in kerosene production