Method for manufacturing titanium-containing silicon oxide catalyst, catalyst and method for manufacturing alkylene oxide using the catalyst
A manufacturing method and technology of titanium silicon oxide, applied in catalyst activation/preparation, physical/chemical process catalysts, organic chemical methods, etc., can solve the problems of catalysts, such as difficult catalysts
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Embodiment 1
[0098] Preparation of catalyst powder
[0099] The template solution 125.0g (the water in the solvent is 20 / (64+20)=24 weight % that is made of the cetyl trimethyl ammonium hydroxide of 16 weight %, the methyl alcohol of 64 weight %, the water of 20 weight % ) was stirred, and a mixed solution of 1.85 g of tetraisopropyl titanate and 10.0 g of 2-propanol was added dropwise thereto at 50° C. After stirring for 30 minutes, a mixed solution of 30.5 g of tetramethyl orthosilicate and 6.8 g of methyltrimethoxysilane was added dropwise. Stirring was then continued for 3 hours at 50°C. The resulting precipitate was obtained by filtration.
[0100] The obtained precipitate was dried under reduced pressure at 70° C. for 8 hours.
[0101] Production of moldings
[0102] 4.5 g of water was sprayed into 30.0 g of the dried white solid, and the well-mixed mixture was compression-molded with a tablet former. After pulverizing the obtained solid, a 1.0 to 2.0 mm shaped catalyst body ...
Embodiment 2
[0108] Silanization
[0109] 3.0 g of the shaped catalyst body obtained in Example 1 was put into a glass flask equipped with a cooling tube, 2.0 g of hexamethyldisilazane and 30.0 g of toluene were added, and silanization was performed under heating at 110° C. for 1.5 hours. After liquid separation, the shaped catalyst body was dried under reduced pressure at 10 mmHg for 1.5 hours under heating at 110°C. The average pore diameter of the obtained catalyst shaped body measured by the physical adsorption method using nitrogen as gas was 29 angstroms, the ratio of the pore volume having a pore diameter of 5 to 200 angstroms in the total pore volume was 94%, and the specific pore volume was 0.87 ml / g.
[0110] The obtained silanization catalyst was evaluated in the same manner as in Example 1 using a batch reactor. The reaction results are shown in Table 1.
Embodiment 3
[0116] Preparation of catalyst powder
[0117] The template solution 125.0g (the water in the solvent is 18 / (66+18)=21% by weight of the hexadecyltrimethylammonium hydroxide by 16% by weight, the methyl alcohol of 66% by weight, the water of 18% by weight constitutes ) was stirred, and a mixed solution of 1.85 g of tetraisopropyl titanate and 10.0 g of 2-propanol was added dropwise thereto at 50°C. After stirring for 30 minutes, a mixed solution (first half) of 15.2 g (100 mmol) of tetramethyl orthosilicate and 3.4 g (25 mmol) of methyltrimethoxysilane was added dropwise. After addition of 19.1 g (125 mmol) of tetramethyl orthosilicate (second half), stirring was continued at 50° C. for 3 hours. The resulting precipitate was filtered.
[0118] The obtained precipitate was dried under reduced pressure at 70° C. for 8 hours.
[0119] Production of moldings
[0120] 3.8 g of water was sprayed into 25.0 g of the dried white solid, and the well-mixed mixture was compression-...
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