Catalysts for the preparation of 3‑acetoxypropanal
An acetoxy propionaldehyde, catalyst technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, carbon monoxide or formate reaction preparation, etc., can solve the problem of low selectivity and yield High, low yield of 3-acetoxy propionaldehyde, etc., to achieve the effect of improving yield and selectivity, improving activity and stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] Preparation of the catalyst: Co containing 8.60gCo, 1.80gSr and 3.00gSn 2 (CO) 8 , Sr(OA C ) 2 0.5H 2 O and triphenyltin chloride (C 18 h 15 ClSn) fully mixed and dissolved in the concentration of 10wt% acetic acid aqueous solution to obtain immersion liquid 400ml, the specific surface of 1.0L is 168m 2 / g, spherical SiO with a pore volume of 0.94 and a diameter of 5.6 mm 2 The carrier was immersed in the above impregnating solution, left to stand for 3 hours and dried at 100° C. to obtain the catalyst. The Co content of the catalyst was determined by ICP to be 8.60 g / L, the Sr content to be 1.80 g / L, and the Sn content to be 3.00 g / L.
[0030] Synthesis of 3-acetoxypropionaldehyde: Add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphine and 1.65mol vinyl acetate into a 1L titanium reactor, first use argon to discharge the air in the reactor and then pressurize to 2.0MPa, then feed carbon monoxide and hydrogen until the pressure is 11.8MPa, increase th...
Embodiment 2
[0034] The preparation of catalyst: the Co containing 8.60gCo, containing 1.80gSr and containing 3.00gZn 2 (CO) 8 , Sr(OA C ) 2 0.5H 2 O and zinc citrate (Zn 3 (C 6 h 5 o 7 ) 2 2H2 O) fully mixed and dissolved in the acetic acid aqueous solution with a concentration of 10wt%, to obtain 400ml of impregnation solution, and the specific surface of 1.0L was 168m 2 / g, spherical SiO with a pore volume of 0.94 and a diameter of 5.6 mm 2 The carrier was immersed in the above impregnating solution, left to stand for 3 hours and dried at 100° C. to obtain the catalyst. The Co content of the catalyst was determined by ICP to be 8.60 g / L, the Sr content to be 1.80 g / L, and the Zn content to be 3.00 g / L.
[0035] Synthesis of 3-acetoxypropionaldehyde: Add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphine and 1.65mol vinyl acetate into a 1L titanium reactor, first use argon to discharge the air in the reactor and then pressurize to 2.0MPa, then feed carbon monoxide a...
Embodiment 3
[0046] Preparation of catalyst: Co(OAc) containing 7.00gCo, 0.50gBe and 1.00gSn 2 4H 2 O, BeCl 2 and SnCl 2 2H 2 O is fully mixed and dissolved in an aqueous hydrochloric acid solution with a concentration of 8wt% to obtain 400ml of impregnation solution, and the specific surface of 1.0L is 200m 2 / g, spherical Al with a pore volume of 1.00 and a diameter of 5.6mm 2 o 3 The carrier was immersed in the above impregnating solution, left to stand for 3 hours and dried at 80° C. to obtain the catalyst. The Co content of the catalyst was determined by ICP to be 7.00 g / L, the Be content to be 0.50 g / L, and the Sn content to be 1.00 g / L.
[0047] Synthesis of 3-acetoxypropionaldehyde: Add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphine and 1.65mol vinyl acetate into a 1L titanium reactor, first use argon to discharge the air in the reactor and then pressurize to 2.0MPa, then feed carbon monoxide and hydrogen until the pressure is 11.8MPa, increase the stirring sp...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More