Spherical montmorillonite mesoporous composite material and supported catalyst, preparation method and application thereof, and preparation method of isopropyl oleate
A supported catalyst, montmorillonite-mediated technology, which is applied in the preparation of carboxylate, catalytic reaction, organic compound/hydride/coordination complex catalyst, etc., can solve the problems of low conversion rate of reaction raw materials and achieve side reactions less, improve the conversion rate, the effect of high reaction raw material conversion rate
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[0050] In step (1), "providing a mesoporous molecular sieve material with a one-dimensional channel and three-pore distribution structure" can be directly weighed or selected a product of a mesoporous molecular sieve material with a one-dimensional channel and three-pore distribution structure, or can be prepared A mesoporous molecular sieve material with one-dimensional channel and three-pore distribution structure. The preparation method of the mesoporous molecular sieve material with one-dimensional channel and three-pore distribution structure can be implemented according to conventional methods, for example, the preparation method can include: preparing the mesoporous molecular sieve material with one-dimensional channel and three-pore distribution structure according to the above method The filter cake, then the resulting filter cake is dried, and the template agent in the product obtained after drying is removed. The conditions for removing the template agent may includ...
Embodiment 1
[0087] This example is used to illustrate the spherical montmorillonite mesoporous composite material and supported catalyst of the present invention and their preparation methods.
[0088] (1) Preparation of spherical montmorillonite mesoporous composites
[0089] Add 1.0 g (0.0002 mol) of triblock copolymer surfactant P123 and 1.69 g (0.037 mol) of ethanol into 28 mL of acetic acid and sodium acetate buffer with a pH value of 4, and stir at 15 °C until P123 is completely dissolved , then add 6g (0.053mol) trimethylpentane to the resulting solution, stir at 15°C for 8h, then add 2.13g (0.014mol) tetramethoxysilane, at 15°C, pH value is 4.5 Stirring for 20 hours under the conditions, then transfer the obtained solution to the reaction kettle, crystallize at 60°C for 24 hours, then filter and wash with deionized water for 4 times, and then filter with suction to obtain a one-dimensional pore three-pore distribution structure. Filter cake A1 of mesoporous molecular sieve materi...
Embodiment 2
[0112]This example is used to illustrate the spherical montmorillonite mesoporous composite material and supported catalyst of the present invention and their preparation methods.
[0113] (1) Preparation of spherical montmorillonite mesoporous composites
[0114] Add 1.0 g (0.0002 mol) triblock copolymer surfactant P123 and 1.84 g (0.04 mol) ethanol to 28 mL of acetic acid and sodium acetate buffer with a pH value of 5, and stir at 15 °C until P123 is completely dissolved , then add 9.12g (0.08mol) trimethylpentane to the resulting solution, stir at 15°C for 8h, then add 3.04g (0.02mol) tetramethoxysilane, at 25°C, pH value Stir for 15 hours under the conditions of 5.5, then transfer the obtained solution to a reaction kettle, crystallize at 100°C for 10 hours, then filter and wash with deionized water for 4 times, and then filter with suction to obtain a three-pore distribution structure with one-dimensional channels Filter cake A2 of mesoporous molecular sieve material.
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