Check patentability & draft patents in minutes with Patsnap Eureka AI!

Process for producing 1,3-propanediol

A technology of propylene glycol and acetoxy propanol, which is applied in the direction of chemical instruments and methods, preparation of organic compounds, carbon monoxide or formate reaction preparation, etc., can solve the problems of low yield and selectivity of propylene glycol, and achieve improved activity and The effect of stability

Active Publication Date: 2018-02-13
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem of low yield and selectivity of 1,3-propanediol, and a new method for producing 1,3-propanediol is provided, which has the advantages of high yield and low selectivity of 1,3-propanediol Sexual characteristics

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
  • Process for producing 1,3-propanediol
  • Process for producing 1,3-propanediol
  • Process for producing 1,3-propanediol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of Hydroformylation Catalyst Carrier II: The aluminum hydroxide powder containing 5.20 g of Al is fully mixed with 10.0 g of silica sol with a concentration of 35 wt % to obtain a coating liquid, and the coating liquid is evenly sprayed on 1.0 L with a diameter of 5.6 mm spherical SiO 2 On the carrier, placed under ventilation conditions for 1 hour, dried at 100°C, and then calcined at 450°C for 4 hours to obtain the catalyst carrier precursor I. Zinc gluconate (C 12 H 22 O 14 Zn·3H 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. The carrier was analyzed by ICP, and the Al content was 5.15 g / L, and the Zn content was 0.59 g / L.

[0027] Preparation of hydroformylation main catalyst: RhCl containing 6.50 gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnation solution, 1.0L of the catalyst carrier II was immersed in the above impregnation s...

Embodiment 2

[0087] Preparation of Hydroformylation Catalyst Carrier II: The pseudo-boehmite powder containing 5.20 g Al is fully mixed with 10.0 g of silica sol with a concentration of 35 wt % to obtain a coating liquid, and the coating liquid is uniformly sprayed on 1.0 L with a diameter of 5.6mm spherical SiO 2 On the carrier, placed under ventilation conditions for 1 hour, dried at 100°C, and then calcined at 450°C for 4 hours to obtain the catalyst carrier precursor I. Zinc gluconate (C 12 H 22 O 14 Zn·3H 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. The carrier was analyzed by ICP, and the Al content was 5.15 g / L, and the Zn content was 0.59 g / L.

[0088] Preparation of hydroformylation main catalyst: RhCl containing 6.50 gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnation solution, 1.0L of the catalyst carrier II was immersed in the above impregnation solut...

Embodiment 3

[0096] The preparation of hydroformylation catalyst carrier II: the boehmite powder containing 5.20g Al is fully mixed with 10.0g of silica sol with a concentration of 35wt% to obtain a coating solution, and the coating solution is evenly sprayed on 1.0L with a diameter of 5.6 mm of spherical SiO 2 On the carrier, placed under ventilation conditions for 1 hour, dried at 100°C, and then calcined at 450°C for 4 hours to obtain the catalyst carrier precursor I. Zinc gluconate (C 12 H 22 O 14 Zn·3H 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. The carrier was analyzed by ICP, and the Al content was 5.15 g / L, and the Zn content was 0.59 g / L.

[0097] Preparation of hydroformylation main catalyst: RhCl containing 6.50 gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnation solution, 1.0L of the catalyst carrier II was immersed in the above impregnation solution...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for producing 1,3-propanediol, which mainly solves the problem of low catalyst activity and selectivity of 1,3-propanediol in the prior art. By adopting the method for producing 1,3-propanediol, comprising the following steps: hydroformylation of vinyl acetate to obtain 3-acetoxypropionaldehyde; hydrogenation of 3-acetoxypropionaldehyde to obtain 3-acetoxypropanol; Acetoxypropanol is hydrolyzed to obtain 1,3-propanediol; the hydroformylation catalyst includes a main catalyst and a promotor, and the main catalyst includes a carrier and an active component; the active component adopts a compound of rhodium; the promotor is selected from organic amines and organic At least one of phosphorus; the carrier has an aluminum coating on its surface and is modified with a modified metal element; the modified metal element is selected from the technical scheme of at least one of the IIB metal elements, This problem is better solved and can be used in the industrial production of 1,3-propanediol.

Description

technical field [0001] The present invention relates to a method for producing 1,3-propanediol. 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 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 polyester material-polytrimethylene terephthalate (PTT). [0003] The preparation methods of 1,3-propanediol 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 and the like. At present, the industrial production method of 1.3-PDO is chemical synthesis, and the international market is mainly monopolized by three companies: Degussa Company of Germany, Shell Company o...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C07C31/20C07C29/09C07C27/02B01J31/28B01J31/30C07C69/14C07C67/38
Inventor 查晓钟杨运信张丽斌
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com