Supported ethylidene diacetate catalyst
A technology of diethylene acetate and catalysts, which is applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, organic chemistry, etc., can solve the problem of low yield and selectivity of diethylene acetate No high problems, to achieve the effect of improving yield and selectivity, improving activity and stability
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Embodiment 1
[0025] Preparation of catalyst: RhCl containing 6.57gRh, 3.30gCu, 2.50gLa and 1.50gLi 3 ·3H 2 O, CuCl 2 2H 2 O, LaCl 3 ·7H 2 O and LiCl are fully mixed and dissolved in pure water to obtain 500ml of impregnation solution, and 1.0L of spherical SiO with a diameter of 5.6mm 2 The carrier was immersed in the above impregnating solution, and dried at 100°C for 2 hours. 2 Calcined at 500° C. for 4 h in the atmosphere to obtain the catalyst.
[0026] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst, 0.10mol methyl iodide and 0.45mol methyl acetate into a 500ml titanium reactor, first use argon to discharge the air in the kettle and then pressurize to 2.0MPa, Then feed carbon monoxide and hydrogen until the pressure is 7.0MPa, increase the stirring speed to 1500rpm, stir and heat up to the reaction temperature at the same time, control the reaction temperature to 168°C, the molar ratio of carbon monoxide and hydrogen is 2:1, continue the reaction for 7....
Embodiment 2
[0085] The preparation of catalyst: the Rh(OAc) that contains 6.57gRh, contains 3.30gCu, contains 2.50gLa and contains 1.50gLi 3 、Cu(OAc) 2 2H 2 O, La(OAc) 3 ·6H 2 O and LiOAc are fully mixed and dissolved in a concentration of 10wt% acetic acid aqueous solution to obtain 500ml of impregnation solution, and 1.0LAl 2 o 3 The carrier was immersed in the above impregnating solution, left to stand for 2 hours, dried at 80° C., and calcined at 400° C. for 4 hours in a He atmosphere to obtain the catalyst.
[0086] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst, 0.10mol methyl iodide and 0.45mol methyl acetate into a 500ml titanium reactor, first use argon to discharge the air in the kettle and then pressurize to 2.0MPa, Then feed carbon monoxide and hydrogen until the pressure is 7.0MPa, increase the stirring speed to 1500rpm, stir and heat up to the reaction temperature at the same time, control the reaction temperature to 168°C, the molar ratio of ...
Embodiment 3
[0090] The preparation of catalyst: will contain 6.57gRh, contain 3.30gCu, contain the Rh(NO 3 ) 3 2H 2 O, Cu(NO 3 ) 2 ·3H 2 O, La(NO 3 ) 3 ·6H 2 O and LiCl are fully mixed and dissolved in pure water to obtain 500ml of impregnation solution, and 1.0LAl 2 o 3 The carrier was immersed in the above impregnating solution, left to stand for 2 hours, dried at 120° C., and calcined at 600° C. for 4 hours in an Ar atmosphere to obtain the catalyst.
[0091] Synthesis of diethylene acetate: Add 1.5mol acetic acid, 0.05mol catalyst, 0.10mol methyl iodide and 0.45mol methyl acetate into a 500ml titanium reactor, first use argon to discharge the air in the kettle and then pressurize to 2.0MPa, Then feed carbon monoxide and hydrogen until the pressure is 7.0MPa, increase the stirring speed to 1500rpm, stir and heat up to the reaction temperature at the same time, control the reaction temperature to 168°C, the molar ratio of carbon monoxide and hydrogen is 2:1, continue the reacti...
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