Aldol condensation reaction solid base catalyst and application
A solid base catalyst, aldol condensation reaction technology, used in physical/chemical process catalysts, organic chemistry, carbon-based compound preparation, etc. Emissions, excellent catalytic performance, effect of low reaction temperature
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Embodiment 1
[0024] 9.9 parts of AlCl by mass 3 ·6H 2 O with 0.1 part of ZrOCl 2 Mix, add 10 parts of water to form a solution, and add 10% ammonia water in parallel flow into the precipitation kettle, heat it in a water bath to 60°C, adjust the pH value to 9.0, keep the temperature for 1 hour, filter the precipitate, and wash with water until no After chloride ionization, it is dried at 120°C, pressed into tablets, and calcined at 650°C to obtain a zirconia-alumina composite oxide with a mass percentage of zirconium of 1.8%.
Embodiment 2
[0026] 9 parts of AlCl by mass 3 ·6H 2 O with 1 part of ZrOCl 2 Mix, add 20 parts of water to form a solution, and add 10% ammonia water in parallel flow into the precipitation kettle, heat in a water bath to 60°C, adjust the pH value to 9.0, keep the temperature for 1 hour, filter the precipitate, and wash with water until no After chloride ionization, it was dried at 120°C, pressed into tablets, and calcined at 650°C to obtain a zirconia-alumina composite oxide with a mass percentage of zirconium of 14.7%.
Embodiment 3
[0028] 9 parts of AlCl by mass 3 ·6H 2 O and 2 parts of ZrOCl 2 Mix, add 20 parts of water to form a solution, and add 10% ammonia water in parallel flow into the precipitation kettle, heat in a water bath to 60°C, adjust the pH value to 9.0, keep the temperature for 1 hour, filter the precipitate, and wash with water until no After chloride ions, it was dried at 120°C, pressed into tablets, and fired at 650°C to obtain a zirconia-alumina composite oxide with a zirconium mass percentage of 23.2%.
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