Preparation method and application of high-temperature-resistant supported PdCu catalyst
A catalyst and supported technology, which is applied in the field of preparation of supported PdCu catalysts, can solve the problems of poor high temperature resistance and sintering resistance, easy deactivation, etc., and achieves simple and easy preparation methods, good sintering resistance, and light-off temperature low effect
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Embodiment 1
[0024] This example is intended to illustrate the preparation method of the magnesium aluminum tipline of the present invention and the preparation method of the load type PDCu catalyst.
[0025] (1) Preparation of magnesium aluminum spinel
[0026] 12.82 g of magnesium nitrate, 20.43 g of isopropanol aluminum is dissolved in 300 ml of anhydrous ethanol to form a mixed liquid, and after the magnetic force was stirred at room temperature for 1 hour, the mixture was heated to 100 ° C for 10 hours; after crystallization, Cooled to room temperature, then filtrate the solution, the resulting solid was dried at 100 ° C, and then heated to 500 ° C for 12 hours at a temperature of 5 ° C / min in the muffle furnace.
[0027] (2) Preparation of load type PDCU catalyst
[0028] 0.0665 g of a palladium chloride, 0.0168 g of a copper-solid powder was dissolved in 200 ml of anhydrous ethanol, and a mixed metal salt solution was prepared; then 5.2 g of step (1) obtained magnesium aluminum spinel...
Embodiment 2
[0032] This example is used to illustrate the preparation method of the present invention and the preparation method of a magnesium aluminum tipline, a load type PDCu catalyst.
[0033] (1) Preparation of magnesium aluminum spinel
[0034] 12.82 g of magnesium nitrate, 19.24 g of isopropanol, and 2.6 g of nitrate were dissolved in 300 ml of anhydrous ethanol in a new city mixture, and after the magnetic force was stirred at room temperature for 1 hour, the mixture was heated to 150 ° C for 12 hours; After the crystallization, cooled to room temperature, then filtered solution, the resulting solid was dried at 100 ° C, and then heated at a temperature of 5 ° C / min at a temperature of 5 ° C / min for 12 hours, and the magnesium aluminum pointer was obtained. Slim A2.
[0035] (2) Preparation of load type PDCU catalyst
[0036] 0.0864 g of the nitrate, 0.0234 g of the copper solid powder of 0.0234 g of the nitrate solid powder was dissolved in 200 ml of anhydrous ethanol, which was...
Embodiment 3
[0040] This example is intended to illustrate the preparation method of the magnesium aluminum tipline of the present invention and the preparation method of the load type PDCu catalyst.
[0041] (1) Preparation of magnesium aluminum spinel
[0042] 12.82 g of magnesium nitrate, 20.43 g of isopropanol aluminum is dissolved in 300 ml of anhydrous ethanol to form a mixed liquid, and after magnetic force at room temperature for 1 hour, the mixture was heated to 120 ° C for 8 hours; after crystallization, Cooled to room temperature, then filtrate the solution, the resulting solid was dried at 100 ° C, and then heated to 500 ° C for 8 hours in the muffle furnace.
[0043] (2) Preparation of load type PDCU catalyst
[0044]0.0842 g of acetate, 0.0249 g of acetic acid solid powder was dissolved in 200 ml of anhydrous ethanol, and a mixed metal salt solution was made; then 5.2 g of step (1) obtained magnesium aluminum spinel A3, impregnated at normal temperature 15 In the hour, after 60 °...
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Abstract
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