Preparation and application methods of solid acid catalyst based on Zr-MOF
A solid acid catalyst and catalyst technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of strong corrosion and oxidation, low reaction yield, poor acid resistance, etc., to achieve Good economic and social benefits, good reaction stability and good reaction performance
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Embodiment 1
[0022] Add 50ml of N,N-dimethylformamide to a mixture of 0.3500g of zirconium tetrachloride and 0.2490g of 1,4-terephthalic acid, stir magnetically for 30min, ultrasonically for 10min until completely dissolved, put it into a 100ml kettle Solvothermal reaction at 120°C for 60h, suction filtration, and drying of the precipitate at 80°C for 24h to obtain white precursor powder Zr-MOF. The above-mentioned white precursor powder was calcined at 300° C. for 4 hours in an air atmosphere to obtain a white or gray porous solid. The loose porous solid obtained above was impregnated with 6mol / L toluene sulfate solution at 25°C for 24h, filtered with suction, the precipitate was washed with absolute ethanol three times and then filtered, the product was vacuum-dried at 60°C for 8h, and calcined at 350°C for 4h. A solid acid catalyst for Zr-MOF is available.
[0023] Add 15g o-xylene and 0.051g Zr-MOF solid acid catalyst to a 100mL four-neck flask equipped with a stirrer, condenser, ther...
Embodiment 2
[0026] Add 50ml of N,N-dimethylformamide to the mixture of 0.3500g of zirconium tetrachloride and 0.3630g of 4,4'-biphenyl dicarboxylic acid, stir magnetically for 30min, ultrasonic for 10min until completely dissolved, and put it into a 100ml kettle Solvothermal reaction at 120°C for 60h, suction filtration, and drying of the precipitate at 80°C for 24h to obtain white precursor powder Zr-MOF. The above-mentioned white precursor powder was calcined at 300° C. for 4 hours in an air atmosphere to obtain a white or gray porous solid. The loose porous solid obtained above was impregnated with 6mol / L toluene sulfate solution at 25°C for 24h, suction filtered, the precipitate was washed 5 times with absolute ethanol and then filtered, the product was vacuum dried at 60°C for 8h, and calcined at 350°C for 4h. A solid acid catalyst for Zr-MOF is available.
[0027] Add 15g o-xylene and 0.051g Zr-MOF solid acid catalyst to a 100mL four-neck flask equipped with a stirrer, condenser, t...
Embodiment 3
[0030]Add 50ml of N,N-dimethylformamide to a mixture of 0.3500g of zirconium tetrachloride and 0.2992g of 1,4-terephthalic acid, stir magnetically for 30min, ultrasonicate for 10min until completely dissolved, put it into a 100ml kettle Solvothermal reaction at 120°C for 60h, suction filtration, and drying of the precipitate at 80°C for 24h to obtain white precursor powder Zr-MOF. The above-mentioned white precursor powder was calcined at 300° C. for 4 hours in an air atmosphere to obtain a white or gray porous solid. The loose porous solid obtained above was impregnated with 6mol / L toluene sulfate solution at 25°C for 24h, suction filtered, the precipitate was washed 5 times with absolute ethanol and then filtered, the product was vacuum dried at 60°C for 8h, and calcined at 350°C for 4h. A solid acid catalyst for Zr-MOF is available.
[0031] Add 15g o-xylene and 0.051g Zr-MOF solid acid catalyst to a 100mL four-neck flask equipped with a stirrer, condenser, thermometer and...
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