Diethylene acetate catalyst
A technology of diethylene acetate and catalysts, applied in the direction of physical/chemical process catalysts, organic chemistry, chemical instruments and methods, etc., can solve the problem of low selectivity, low yield of diacetate, and diacetate High selectivity issues, to achieve the effect of improving yield and selectivity, improving activity and stability
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Embodiment 1
[0027] Preparation of Catalyst Carrier II: Fully mix aluminum hydroxide powder containing 3.40g of Al with 10.0g of silica sol with a concentration of 35wt% to obtain a coating solution, and spray the coating solution evenly on 1.0L of spherical SiO with a diameter of 5.6mm 2 placed on the carrier for 1 hour under ventilated conditions, dried at 100° C., and then calcined at 450° C. for 4 hours to obtain the catalyst carrier precursor I. Zirconium oxychloride (ZrOCl) containing 0.6g Zr 2 ·8H 2 O) 0.6 L of aqueous solution was impregnated on 1.0 L of catalyst carrier precursor I, and dried at 100° C. to obtain the catalyst carrier II.
[0028] Preparation of main catalyst: RhCl containing 7.20gRh 3 ·3H 2 O was dissolved in pure water to obtain 580ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 100°C, and 2 The main catalyst was obtained by raising the temperature to 500° C...
Embodiment 2
[0070] Preparation of Catalyst Carrier II: Fully mix pseudo-boehmite powder containing 3.40g Al with 10.0g of silica sol with a concentration of 35wt% to obtain a coating solution, and spray the coating solution evenly on a 1.0L spherical surface with a diameter of 5.6mm SiO 2 placed on the carrier for 1 hour under ventilated conditions, dried at 100° C., and then calcined at 450° C. for 4 hours to obtain the catalyst carrier precursor I. Zirconium oxychloride (ZrOCl) containing 0.60g Zr 2 ·8H 2 O) 0.6 L of aqueous solution was impregnated on 1.0 L of catalyst carrier precursor I, and dried at 100° C. to obtain the catalyst carrier II.
[0071] Preparation of main catalyst: RhCl containing 7.20gRh 3 ·3H 2 O was dissolved in pure water to obtain 580ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 100°C, and 2 The main catalyst was obtained by raising the temperature to 500...
Embodiment 3
[0076] Preparation of Catalyst Carrier II: Fully mix boehmite powder containing 3.40g Al with 10.0g silica sol with a concentration of 35wt% to obtain a coating solution, and spray the coating solution evenly on 1.0L of spherical SiO with a diameter of 5.6mm 2 placed on the carrier for 1 hour under ventilated conditions, dried at 100° C., and then calcined at 450° C. for 4 hours to obtain the catalyst carrier precursor I. Zirconium oxychloride (ZrOCl) containing 0.60g Zr 2 ·8H 2 O) 0.6 L of aqueous solution was impregnated on 1.0 L of catalyst carrier precursor I, and dried at 100° C. to obtain the catalyst carrier II.
[0077] Preparation of main catalyst: RhCl containing 7.20gRh 3 ·3H 2 O was dissolved in pure water to obtain 580ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 100°C, and 2 The main catalyst was obtained by raising the temperature to 500° C. and calcining...
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