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

Difunctionalized silica catalytic material as well as preparation and application thereof

A catalytic material, silicon oxide technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as expensive monomers and complicated and cumbersome preparation processes. Achieve the effect of simple preparation process, few synthesis steps and high specific surface area

Active Publication Date: 2018-06-01
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bifunctional catalysts used in the above literature are microporous organic polymers or metal-organic framework materials. The preparation process is complicated and cumbersome, the monomers are relatively expensive, and even expensive metal catalysts are required.

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
  • Difunctionalized silica catalytic material as well as preparation and application thereof
  • Difunctionalized silica catalytic material as well as preparation and application thereof
  • Difunctionalized silica catalytic material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Preparation of ionic liquid / benzyl alcohol bifunctional silicon oxide material SBA15-1

[0024] In a 250mL reaction flask, add 1g of silicon oxide material SBA15 and 0.248g (1mmol) 3-trimethoxysilane propyl acrylate, add 20mL of anhydrous toluene to the reaction flask, fully stir and reflux for 24 hours under a nitrogen atmosphere, and react After the system was cooled to room temperature, it was filtered, and the product was washed twice with 25 mL of ethanol, and dried in vacuum at 60° C. for 12 hours to obtain Allyl-SBA15, a silicon oxide material functionalized with double bonds. Take 1g of double-bond functionalized silicon oxide material Allyl-SBA15 into a 250mL reaction flask, add 50mL of N,N-dimethylformamide and stir to disperse, and dissolve 232mg (1mmol) of double bond-containing ionic liquid 1-vinyl- Add 3-butylimidazolium bromide and 536mg (4mmol) 4-vinylbenzyl alcohol into the reaction system, replace it with nitrogen and add 20mg of initiator a...

Embodiment 2

[0028] Example 2: Preparation of ionic liquid / benzyl alcohol bifunctional silicon oxide material SBA15-2

[0029]This example is basically the same as Example 1, except that the amount of the ionic liquid 1-vinyl-3-butylimidazolium bromide containing double bonds added is 470 mg (2 mmol), and the amount of 4-vinylbenzyl alcohol is added The amount was 269 mg (2 mmol). The measured specific surface area is 160m 2 / g, and the weight loss in the air atmosphere at 200-800°C was 41.0wt%.

Embodiment 3

[0030] Example 3: Preparation of ionic liquid / benzyl alcohol bifunctional silicon oxide material SBA15-3

[0031] This example is basically the same as Example 1, except that the amount of the ionic liquid 1-vinyl-3-butylimidazolium bromide containing double bonds added is 370 mg (1.6 mmol), and 4-vinylbenzyl alcohol is added The amount of is 430mg (3.2mmol). The measured specific surface area is 161m 2 / g, and the weight loss in the air atmosphere at 200-800°C is 35.5wt%.

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 surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to preparation of an ionic liquid / benzyl alcohol difunctionalized silica catalytic material and an application of the material to catalysis of a reaction for synthesizing cyclocarbonate from carbon dioxide and epoxide. The ionic liquid / benzyl alcohol difunctionalized silica catalytic material is prepared from a functionalized silica material containing double bonds, an ionicliquid containing double bonds and (4-vinylphenyl)methanol through a free radical polymerization reaction. The raw materials required for preparation of the catalyst are simple and easily available, the preparation process is finished only through the one-step free radical polymerization reaction, the catalyst has high content of functional groups, high specific surface area and high pore volume,diffusion based mass transfer of a substrate and a product is facilitated, the reaction for synthesizing cyclocarbonate from epoxide and carbon dioxide through cycloaddition can be catalyzed efficiently, and substrate universality is realized. The preparation process of the catalyst is simple, economical and environmentally friendly, up-scale synthesis can be realized, and important industrial application prospect is provided.

Description

technical field [0001] The invention belongs to the field of preparation and application of polymer / silicon oxide composite catalyst. It specifically relates to a bifunctional silicon oxide catalytic material and its preparation and application. Background technique [0002] Carbon dioxide is an important cheap, non-toxic, recyclable C1 resource, but with the rapid development of global industry and the destruction of surface vegetation, the emission of carbon dioxide in the atmosphere is increasing day by day, which is the main factor leading to the greenhouse effect, so carbon dioxide The capture and application of carbon dioxide is a research hotspot for scientists. Converting carbon dioxide into green chemicals with high economic value can not only realize the effective use of carbon resources, but also reduce the impact on the greenhouse effect and slow down the pace of global warming. The conversion and utilization of carbon dioxide have achieved rapid development, an...

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 Applications(China)
IPC IPC(8): B01J31/02B01J35/10C07D317/36
CPCC07D317/36B01J31/0295B01J35/613B01J35/615B01J35/617
Inventor 杨启华李贺江吉
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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