Catalyst for preparation of 3-acetoxy propionaldehyde

A technology of acetoxypropionaldehyde and catalyst, which is applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, carbon monoxide or formate reaction preparation, etc., which can solve the problem of low selectivity and yield High, high selectivity of 3-acetoxypropanal, to achieve the effect of improving activity and stability, improving yield and selectivity

Active Publication Date: 2016-04-20
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is the problem of low yield and low selectivity of 3-acetoxypropionaldehyde, and a catalyst used f

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst for preparation of 3-acetoxy propionaldehyde
  • Catalyst for preparation of 3-acetoxy propionaldehyde
  • Catalyst for preparation of 3-acetoxy propionaldehyde

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] [Example 1]

[0029] Preparation of catalyst: Co containing 8.60 g Co, 1.80 g Sr and 3.00 g Sn 2 (CO) 8 , Sr(OA C ) 2 ·0.5H 2 O and triphenyltin chloride (C 18 H 15 ClSn) was fully mixed and dissolved in the acetic acid aqueous solution with a concentration of 10wt% to obtain 400ml of immersion liquid, 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-mentioned dipping solution, and dried at 100° C. for 3 hours to obtain the catalyst. The Co content of the catalyst determined by ICP was 8.60 g / L, the Sr content was 1.80 g / L, and the Sn content was 3.00 g / L.

[0030] Synthesis of 3-acetoxy propionaldehyde: add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphorus and 1.65mol vinyl acetate into a 1L titanium material reaction kettle, first discharge the air in the kettle with argon, and then pressurize to 2.0MPa, then feed carbon monoxide and hydrogen ...

Example Embodiment

[0033] [Example 2]

[0034] Preparation of catalyst: Co containing 8.60 g Co, 1.80 g Sr and 3.00 g Zn 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 immersion liquid, 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-mentioned dipping solution, and dried at 100° C. for 3 hours to obtain the catalyst. The Co content of the catalyst determined by ICP was 8.60 g / L, the Sr content was 1.80 g / L, and the Zn content was 3.00 g / L.

[0035] Synthesis of 3-acetoxy propionaldehyde: add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphorus and 1.65mol vinyl acetate into a 1L titanium material reaction kettle, first discharge the air in the kettle with argon, and then pressurize to 2.0MPa, then feed carbon monoxide and hydro...

Example Embodiment

[0045] [Example 3]

[0046] Preparation of catalyst: Co(OAc) containing 7.00 g Co, 0.50 g Be and 1.00 g Sn 2 ·4H 2 O, BeCl 2 and SnCl 2 ·2H 2 O is thoroughly mixed and dissolved in an aqueous hydrochloric acid solution with a concentration of 8wt% to obtain 400ml of immersion solution, and 1.0L of the specific surface is 200m 2 / g, spherical Al with a pore volume of 1.00 and a diameter of 5.6 mm 2 O 3 The carrier was immersed in the above-mentioned dipping solution, and dried at 80° C. for 3 hours to obtain the catalyst. The Co content of the catalyst determined by ICP was 7.00 g / L, the Be content was 0.50 g / L, and the Sn content was 1.00 g / L.

[0047] Synthesis of 3-acetoxy propionaldehyde: add 2.50mol toluene, 0.15mol catalyst, 0.20mol triphenylphosphorus and 1.65mol vinyl acetate into a 1L titanium material reaction kettle, first discharge the air in the kettle with argon, and then pressurize to 2.0MPa, then feed carbon monoxide and hydrogen until the pressure is 11...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Specific surfaceaaaaaaaaaa
Diameteraaaaaaaaaa
Specific surfaceaaaaaaaaaa
Login to view more

Abstract

The invention relates to catalyst for preparation of 3-acetoxy propionaldehyde, and mainly solves the problems of low activity and selectivity of 3-acetoxy propionaldehyde catalyst in the prior art. According to a technical scheme, the catalyst adopts SiO2, Al2O3 or a mixture thereof as the carrier, the active component includes at least one of iron series elements, an alkaline earth metal element and at least one metal element selected from IVA and IIB, thus welling solving the problems. The catalyst provided by the invention can be used for the industrial production of 1.3-propanediol.

Description

technical field [0001] The invention relates to a catalyst used in the preparation of 3-acetoxypropionaldehyde, a production method of the catalyst and a synthesis method of 3-acetoxypropionaldehyde. Background technique [0002] 1.3-Propanediol (1.3-PDO) is an important chemical raw material, mainly used in the synthesis of plasticizers, detergents, preservatives, emulsifiers, and also used in food, cosmetics and pharmaceutical industries. Because it is an important polyester fiber monomer, its main use is as a monomer and terephthalic acid to synthesize a new type of polyester material, polytrimethylene terephthalate (PTT). [0003] 1. The preparation methods of 3-propylene glycol include ethylene oxide one-step method, ethylene oxide two-step method, acrolein hydration method, acetaldehyde-formaldehyde condensation method, acrylate method, biological method, vinyl acetate hydroformylation, etc. At present, the industrialized production method of 1.3-PDO is chemical synth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/835B01J23/80B01J23/89B01J31/28B01J31/26C07C69/14C07C67/38
Inventor 查晓钟杨运信张丽斌
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap