Catalyst for compounding fluorine-containing halohydrocarbon and preparation method of catalyst
A technology of catalysts and halogenated hydrocarbons, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as complex processes, high energy consumption, and complicated process flows, and achieve mild preparation conditions, The effect of simple operation and easy-to-obtain raw materials
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[0052] Example 1: Preparation of large specific surface area, mesoporous aluminum fluoride
[0053] A mixture of 15.0g of large specific surface area, mesoporous alumina, and 15.0g of organic polymer additives was dissolved in 100mL of water. The suspension was refluxed for 12h under stirring at 60℃, and then the aqueous solution of fluorinated reagent was slowly dropped under stirring. Add to the above suspension, the dripping time is 2h, the fluorination temperature is controlled at 90℃, after the dripping is completed, stir for 6h, then statically age at 50℃ for 12h, and then wash, filter, and dry to obtain a large ratio Surface area, mesoporous aluminum fluoride. Table 1 shows the specific surface area and pore size distribution of aluminum fluoride prepared under different alumina specific surface areas, pore structures, organic polymer additives, and fluorinating reagents.
[0054] Table 1 Physicochemical properties of aluminum fluoride in Example 1
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[0057] Example 2: Preparation of large specific surface area, mesoporous zirconium fluoride
[0058] A mixture of 15.0g of large specific surface area, mesoporous alumina, and 30.0g of organic polymer additives was dissolved in 100mL of water. The suspension was refluxed for 12h under stirring at 80℃, and then the aqueous solution of fluorinated reagent was slowly dropped under stirring. Add to the above suspension, the dripping time is 4h, the fluorination temperature is controlled at 60℃, after the dripping is completed, stir for 8h, and then statically age at 50℃ for 12h, and then wash, filter and dry to obtain a large ratio Surface area, mesoporous aluminum fluoride. Table 2 shows the specific surface area and pore size distribution of zirconium fluoride prepared under different zirconia specific surface area, pore structure, organic polymer additives, and fluorinating reagent.
[0059] Table 2 Physicochemical properties of zirconium fluoride in Example 2
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Example Embodiment
[0062] Example 3: Preparation of large specific surface area, mesoporous magnesium fluoride
[0063] A mixture of 15.0g of large specific surface area, mesoporous magnesium oxide, and 45.0g of organic polymer additives was dissolved in 100mL of water. The suspension was refluxed for 12h under stirring at 30°C, and then the fluorinated reagent aqueous solution was slowly dropped under stirring. Add to the above suspension, the dripping time is 3h, the fluorination temperature is controlled at 30℃, after the dripping is completed, stir for 8h, then static aging at 50℃ for 12h, and then wash, filter, and dry to obtain a large ratio Surface area, mesoporous aluminum fluoride. Table 3 shows the specific surface area and pore size distribution of magnesium fluoride prepared under different magnesium oxide specific surface areas, pore structures, organic polymer additives, and fluorinating reagents.
[0064] Table 3 Physicochemical properties of magnesium fluoride in Example 3
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