Benzyl alcohol selective oxidation catalyst, preparation method and application thereof
An oxidation catalyst, a technology of benzyl alcohol, applied in the directions of oxidation preparation of carbonyl compounds, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem that the catalytic activity needs to be improved, and achieve a simple preparation method. , the effect of high catalytic activity
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example 1-4
[0032] Examples 1-4 illustrate the preparation of magnesium aluminum spinel using the method provided by the present invention with different aluminum sources, magnesium sources and preparation conditions. The formula used and the properties of the synthesized magnesium aluminum spinel are shown in Table 1. The specific preparation method of magnesium aluminum spinel is as follows: (1) Weigh a certain amount of aluminum source and magnesium source compound and dissolve them in 50 ml of deionized water to prepare mixed solution I; (2) Under continuous and rapid stirring conditions , Add 216 ml of 25% by weight ammonia dropwise to mixed solution I; and add 0.36 g of cetyltrimethyl amine bromide to make mixed solution II; the molar ratio of each component in the mixture is about, Al: Mg:OH - : Surfactant: H 2 O=2:1:3:0.1:10; (3) After the dripping is completed, the mixed solution II continues to be stirred at room temperature for a certain period of time, and then allowed to stand fo...
example 5-8
[0037] Examples 5-8 illustrate the preparation of magnesium aluminum spinel using the method provided by the present invention with different surfactants, lye and preparation conditions. The formula used and the properties of the synthesized magnesium aluminum spinel are shown in Table 2. The specific preparation method of magnesium aluminum spinel is as follows: (1) Weigh a certain amount of aluminum source and magnesium source compound and dissolve them in 50 ml of deionized water to prepare mixed solution I; (2) Under continuous and rapid stirring conditions , Add a certain amount of lye dropwise to the mixed solution I; and add an appropriate amount of surfactant to make the mixed solution II; the molar ratio of each component in the mixture is about, Al:Mg:OH - : Surfactant: H 2 O=2:1:3:0.1:10; (3) After the dropwise addition is completed, the mixed solution II continues to be stirred at room temperature for 1 hour and allowed to stand for 8 hours; (4) The aged mixture is fil...
example 9-12
[0042] Examples 9-12 illustrate the preparation of magnesium aluminum spinel using the method provided by the present invention with different raw material ratios and preparation conditions. The formula used and the properties of the synthesized magnesium aluminum spinel are shown in Table 3. The specific preparation method of magnesium aluminum spinel is as follows: (1) Weigh a certain amount of aluminum source and magnesium source compound and dissolve them in 50 ml of deionized water to prepare mixed solution I; (2) Under continuous and rapid stirring conditions , Add 216 ml of 25% by weight ammonia dropwise to mixed solution I; and add 0.36 g of cetyltrimethyl amine bromide to make mixed solution II; the molar ratio of each component in the mixture is about, Al: Mg:OH - : Surfactant: H 2O=2:1:3:0.1:10; (3) After the dripping is completed, the mixed solution II is continuously stirred for 0.5 hours at room temperature and allowed to stand for 4 hours; (4) The aged mixture is fi...
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