Preparation method of solid catalyst for catalyzing glucose dehydration
A solid catalyst, glucose technology, applied in physical/chemical process catalysts, chemical instruments and methods, organic chemistry, etc., to reduce production costs, reduce environmental pollution, and facilitate reuse.
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Embodiment 1
[0038] First, chitosan and SBA-15 were added to water at a ratio of 1:1, and the water was slowly evaporated while stirring at 80°C to obtain solid particles; Calcined (heating rate 5°C / min, heat preservation 1h), a black solid powder was obtained. The black solid powder was soaked in 5% HF solution to remove SBA-15, then filtered, washed with deionized water for several times until hydrofluoric acid was washed, and finally dried in an oven at 80°C for 10 hours to obtain a mesoporous carbon nitrogen material. Soak the prepared carbon-nitrogen material in 5mol / L hydrochloric acid for 24 hours, filter it, wash it with deionized water several times until the excess acid is washed away, and finally dry it in an oven at 90°C for 12 hours to obtain a solid that is used to catalyze the dehydration of glucose catalyst.
[0039] Catalytic performance analysis test:
[0040] Dissolve 0.1g of glucose in 4ml of water and 8ml of methyl isobutyl ketone, then add 0.2g of solid catalyst for...
Embodiment 2
[0047] First, chitosan and SBA-15 were added to water at a ratio of 1:3, and the water was slowly evaporated while stirring at 82°C to obtain solid particles; Calcination (heating rate 2°C / min, heat preservation 1h) to obtain a black solid powder. The black solid powder was soaked in 8% HF solution to remove SBA-15, then filtered, washed with deionized water for several times until hydrofluoric acid was washed, and finally dried in an oven at 86°C for 15 hours to obtain a mesoporous carbon nitrogen material. Soak the prepared carbon-nitrogen material in 5mol / L hydrochloric acid for 26 hours, filter it, wash it with deionized water several times until the excess acid is washed away, and finally dry it in an oven at 80°C for 10 hours to obtain a solid for catalyzing the dehydration of glucose catalyst.
[0048] Catalytic performance analysis test:
[0049] Dissolve 0.1g of glucose in 4ml of water and 8ml of methyl isobutyl ketone, then add 0.2g of solid catalyst for catalyzing...
Embodiment 3
[0052] First, chitosan and SBA-15 were added to water at a ratio of 1:2, and the water was slowly evaporated while stirring at 85°C to obtain solid particles; Calcination (heating rate 6°C / min, heat preservation 1h) to obtain a black solid powder. Soak the black solid powder in 6% HF solution to remove the SBA-15 template, then filter it, wash it with deionized water several times until it is washed with hydrofluoric acid, and finally dry it in an oven at 90°C for 18 hours to obtain a mesoporous carbon nitrogen material . Soak the prepared carbon-nitrogen material in 5mol / L hydrochloric acid for 24 hours, filter it, wash it with deionized water several times until the excess acid is washed away, and finally dry it in an oven at 100°C for 12 hours to obtain a solid for catalyzing the dehydration of glucose catalyst.
[0053] Catalytic performance analysis test:
[0054] Dissolve 0.1g of glucose in 4ml of water and 8ml of methyl isobutyl ketone, then add 0.2g of solid catalys...
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