Abstract:A new vanadium zeolite labelled Nu-15 was prepared. The preparation procedure consists in hydrothermal decomposition of a vanadium glass for 4-10 days at 120-160 °C and saturated vapour pressure in a strongly basic solution of sodium hydroxide. The composition of the starting glasses was 15-17% Na2O, 15-17% Al2O3, 25-40% SiO2 and 30-45% V2O5, the composition of the zeolite, apart from water, corresponds to the formula 2 Na2O.2 Al2O3.6 SiO2.V2O5.
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