Pypocholoride decomposition catalyst
A hypochlorite and catalyst technology, which is applied in the field of hypochlorite decomposition catalyst, can solve the problem of low catalytic activity of the catalyst and achieve high decomposition efficiency
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Embodiment 1
[0028] (1) Impregnate 1000g of the above alumina pellets with an equal volume of 0.4mol / L cerium nitrate solution, dry at 80°C for 10h, and then calcinate at 450°C for 4h;
[0029] (2) Impregnate the alumina pellets obtained in step (1) with an equal volume of sodium hydroxide solution with a concentration of 0.3 mol / L, and vacuum dry at 60°C for 12 hours;
[0030] (3) The amount of cobalt, nickel and hypochlorous acid is calculated as 0.1:1:1.1 Cobalt nitrate, nickel nitrate and hypochlorous acid are prepared into a mixed solution, and the total mass of cobalt, nickel and hypochlorous acid in the solution The concentration was 0.6 mol / L, the pH of the solution was adjusted to 5.0 with sodium hydroxide, and the alumina pellets obtained in step (2) were impregnated with equal volume, dried at 80 °C for 12 h, and then calcined at 150 °C for 4 h to obtain catalyst C1.
Embodiment 2
[0032] (1) Impregnate 1000g alumina pellets with an equal volume of 0.4mol / L cerium nitrate solution, dry at 80°C for 12h, and bake at 450°C for 4h after drying;
[0033] (2) Impregnate the alumina pellets obtained in step (1) with an equal volume of sodium hydroxide solution with a concentration of 0.3 mol / L, and vacuum dry at 60°C for 12 hours;
[0034] (3) Calculate the mass of cobalt, nickel and hypochlorous acid as 0.2:1:1.2. Mix cobalt nitrate, nickel nitrate and hypochlorous acid into a mixed solution, and the total mass concentration of cobalt, nickel and hypochlorous acid in the solution 0.6mol / L, the pH of the solution was adjusted to 5.0 with sodium hydroxide, the alumina pellets obtained in step (2) were impregnated with equal volume, dried at 80°C for 12h, and then calcined at 150°C for 4h to obtain catalyst C2.
Embodiment 3
[0036] (1) Impregnate 1000g alumina pellets with an equal volume of 0.4mol / L cerium nitrate solution, dry at 80°C for 12h, and bake at 450°C for 4h after drying;
[0037] (2) Impregnate the alumina pellets obtained in step (1) with an equal volume of sodium hydroxide solution with a concentration of 0.3 mol / L, and vacuum dry at 60°C for 12 hours;
[0038] (3) Calculate the mass of cobalt, nickel and hypochlorous acid as 0.3:1:1.3. Mix cobalt nitrate, nickel nitrate and hypochlorous acid into a mixed solution, and the total mass concentration of cobalt, nickel and hypochlorous acid in the solution Alumina pellets obtained in step (2) were impregnated with equal volume, dried at 80°C for 12h, and then calcined at 150°C for 4h to obtain catalyst C3.
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Abstract
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