Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

New type resin catalyst for making 3-hydroxy inner aldehyde from acrolein hydration and its application

A technology of hydroxypropionaldehyde and acrolein water, which can be used in organic compound/hydride/coordination complex catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., and can solve problems such as large volume shrinkage of catalysts

Active Publication Date: 2006-09-13
SHANGHAI HUAYI NEW MATERIAL
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing 3-hydroxypropanal by hydration of acrolein. The catalyst provided by the method can better solve the problem of large volume shrinkage of the catalyst during the transformation process, and can hydrate acrolein When the reaction is carried out at a lower reaction temperature, a higher acrolein conversion rate and excellent 3-hydroxypropanal selectivity are obtained, thereby effectively solving the problems existing in the prior art

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
  • New type resin catalyst for making 3-hydroxy inner aldehyde from acrolein hydration and its application
  • New type resin catalyst for making 3-hydroxy inner aldehyde from acrolein hydration and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0012] Catalyst pretreatment: acidify sodium-type styrene-divinylbenzene-(meth)acrylate or methacrylonitrile ternary copolymerization chelating ion exchange resin with 1N hydrochloric acid or sulfuric acid to hydrogen After forming the resin, wash the chloride ion or sulfate ion with deionized water, then soak for 5 to 10 hours with 5% by weight of sodium hydroxide aqueous solution, and then carry out transformation with 1N hydrochloric acid or sulfuric acid, so repeat three times, and finally The fully hydrogen-form resin is partially exchanged with a metal salt solution with a concentration of 0.1-0.5% by weight, washed with deionized water until it is neutral, and then used for later use. The amount of exchanged metal ions is determined by measuring the acid exchange amount of the complete hydrogen form resin and the partially exchanged resin.

[0013] Reaction evaluation: In a φ14mm×300mm stainless steel fixed-bed reactor, put 20g of the resin catalyst treated above, keep ...

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

No PUM Login to View More

Abstract

A chelated ion exchange resin catalyst for preparing 3-hydroxypropanal from acrolein by hydrating reaction has a surface layer carrying amidocarboxylic acid groups and a basic body which is a three-element copolymer styrene-divinylbenzene- (methyl) acrylate (or acrylonitrile). It has low reaction temp and high conversion rate and selectivity.

Description

technical field [0001] The invention relates to a catalyst for preparing 3-hydroxypropanal by acrolein hydration, in particular to the preparation and application of a chelating ion exchange resin catalyst for preparing 3-hydroxypropanal by acrolein hydration. Background technique [0002] Polytrimethylene terephthalate (PTT) produced by the polymerization reaction of 1,3-propanediol (1,3-PDO) and methyl terephthalate is a new type of polymer material. Fibers made of PTT are not only It has excellent resilience, bulkiness, easy-to-stain, and has the advantages of inherent anti-fouling and anti-static properties. It is a polymer material with great development prospects. Although PTT came out in the 1950s, the development of PTT has been stagnant for many years because its main monomer, 1,3-propanediol, cannot be industrialized. In recent years, with the success of industrial production of 1,3-PDO, the development and application of PTT has received attention again. The hyd...

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): B01J31/08B01J37/30C07C45/64C07C47/19
Inventor 张春雷宁春利周柳茵赵小歧冯世强邵敬铭
Owner SHANGHAI HUAYI NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com