Spherical aluminum-containing sepiolite mesoporous composite material, supported catalyst, preparation method and application thereof, and preparation method of isopropyl oleate
A composite material and a sepiolite technology are applied in the fields of spherical aluminum-containing sepiolite mesoporous composite materials and supported catalysts, their preparation and application, and the preparation of isopropyl oleate, which can solve the problem of low conversion rate of reaction raw materials and the like. problem, to achieve the effect of less side reactions, simple post-processing, and high conversion rate
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[0048] In step (1), "providing a mesoporous molecular sieve material with a one-dimensional channel and two-pore distribution structure" can be directly weighed or selected a product of a mesoporous molecular sieve material with a one-dimensional channel and two-pore distribution structure, or can be prepared A mesoporous molecular sieve material with a one-dimensional channel and two-pore distribution structure. The preparation method of the mesoporous molecular sieve material having a one-dimensional channel dual-pore distribution structure can be implemented according to a conventional method, for example, the preparation method may include: preparing a mesoporous molecular sieve material having a one-dimensional channel dual-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 include: a te...
Embodiment 1
[0081] This example is used to illustrate the spherical aluminum-containing sepiolite mesoporous composite material and supported catalyst of the present invention and their preparation methods.
[0082] (1) Preparation of spherical aluminum-containing sepiolite mesoporous composites
[0083] Add 1.0g (0.0002mol) of triblock copolymer surfactant P123 and 1.69g (0.037mol) of ethanol to 28ml 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 20h under the conditions, then the obtained solution was transferred to a polytetrafluoroethylene-lined reactor, crystallized at 60°C for 24h, then filtered and washed 4 times with deionized water, and then suction filtered to obtain a The filter cake A1 of the mesoporous molecular sieve material with a two...
Embodiment 2
[0106] This example is used to illustrate the spherical aluminum-containing sepiolite mesoporous composite material and supported catalyst of the present invention and their preparation methods.
[0107] (1) Preparation of spherical aluminum-containing sepiolite mesoporous composites
[0108] Add 1.0g (0.0002mol) of triblock copolymer surfactant P123 and 1.84g (0.04mol) of ethanol to 28ml 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 Stirred under the condition of 5.5 for 15h, then transferred the resulting solution to a polytetrafluoroethylene-lined reactor, crystallized at 100°C for 10h, then filtered and washed 4 times with deionized water, and then suction filtered to obtain Filter cake A2 of mesoporous molecular sieve material with one-dimensional chann...
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