Method for preparing high-dispersion metal catalyst
A metal catalyst, highly dispersed technology, applied in the direction of molecular sieve catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc. Performance, harsh raw material storage conditions and other issues, to achieve excellent stability, simple and convenient preparation method, easy storage effect
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Embodiment 1
[0025] Select silica pellets produced by Shandong Ocean Chemical Industry Co., Ltd. as the carrier precursor, weigh 5g of the above precursor and place it in a beaker, add 15g of ethanolamine, soak for 6h, and dry the mixture at 90°C for 96h in an air atmosphere. Calcined for 24 hours under air atmosphere to obtain the carrier required for catalyst preparation.
[0026] 2.83g Cu(NO 3 ) 2 ·3H 2 O was dissolved in 5ml of deionized water, 3g of the above-mentioned carrier obtained by ethanolamine treatment was added into the solution, soaked at room temperature for 12h, dried at 50°C for 48h, and then calcined at 350°C for 3h to obtain the catalyst, denoted as A. The XRD figure of gained catalyst is as follows figure 1 shown.
[0027] The composition of the catalyst A is as follows in terms of mass fraction: 20% of Cu, and 80% of the carrier obtained by ethanolamine treatment.
Embodiment 2
[0029] Select silicon oxide produced by Shandong Ocean Chemical as the carrier precursor, weigh 5g of the above precursor and place it in a beaker, add 50g of triethanolamine, soak for 12h, and dry the mixture at 150°C for 48h in air atmosphere, and the obtained solid is heated at 350°C in air Calcined under the atmosphere for 10 hours to obtain the carrier required for catalyst preparation.
[0030] 2.61g Co(NO 3 ) 2 ·6H 2 O was dissolved in 10ml of deionized water, 3g of the carrier obtained by the above-mentioned triethanolamine treatment was added into the solution, soaked at room temperature for 12h, dried at 120°C for 12h, and then calcined at 250°C for 4h to obtain the catalyst, denoted as B. The XRD figure of gained catalyst is as follows figure 1 shown.
[0031] The composition of catalyst B is as follows in terms of mass fraction: Co is 15%, and the support obtained by triethanolamine treatment is 85%.
Embodiment 3
[0033] Select silicon oxide powder produced by Shandong Ocean Chemical as the carrier precursor, weigh 5g of the above precursor and place it in a beaker, add 5g of n-propanolamine, soak for 6h, and dry the mixture at 50°C for 120h in an air atmosphere. Calcined at 550° C. for 1 h in an air atmosphere to obtain the carrier required for catalyst preparation.
[0034] 5.24g Ni(NO 3 ) 2 ·6H 2 O was dissolved in 15ml of deionized water, 3g of the carrier obtained by the above-mentioned n-propanolamine treatment was added to the solution, soaked at room temperature for 12h, dried at 150°C for 6h, and then calcined at 550°C for 1h to obtain the catalyst, which was designated as C. The XRD figure of gained catalyst is as follows figure 1 shown.
[0035] The composition of catalyst C is as follows in terms of mass fraction: Ni is 30%, and the support obtained by n-propanolamine treatment is 70%.
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