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

Preparation method and application of tentacle type amino acid supported ionic liquid

An ionic liquid, amino acid type technology, applied in chemical instruments and methods, ion exchange, ion exchange regeneration, etc., can solve the problems of increased solid loading, limited carrier surface area, etc., and achieve the effect of large adsorption capacity

Active Publication Date: 2017-02-22
SICHUAN UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, ionic liquids are all immobilized in a single layer, the surface area of ​​the carrier is limited, and the immobilization capacity needs to be further increased.

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
  • Preparation method and application of tentacle type amino acid supported ionic liquid
  • Preparation method and application of tentacle type amino acid supported ionic liquid
  • Preparation method and application of tentacle type amino acid supported ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Implementation Example 1: The preparation method of L-proline methylimidazolium ionic liquid

[0017] (1) Weigh 0.1mol of γ-chloropropyltrimethoxysilane into a 100mL round bottom flask, add 0.12mol of N-methylimidazole, heat up to 80°C under nitrogen protection, and reflux for 16 hours to form a light yellow viscous liquid. The product was washed 4 times with ethyl acetate to remove unreacted N-methylimidazole, then washed 4 times with anhydrous ether, the solvent was distilled off under reduced pressure, and the product was vacuum-dried at 60°C for 36 hours. (2) Weigh 0.05 mol of the product of step (1) in a beaker, add 50 mL of absolute ethanol to dissolve it, and transfer the dissolved solution to a pretreated strongly basic anion exchange resin (201×7 -717 type) packed column (the amount of resin is 7 times the molar exchange capacity, and the height of the packing is 300mm), the flow rate of the effluent is controlled not to exceed 2 drops per second, and ethanol i...

Embodiment 2

[0018] Implementation example 2: the preparation method of tentacled silica gel intermediate

[0019] Weigh 3.0 g of silica gel and place it in a 100 mL round bottom flask. Add an appropriate amount of water-dispersible silica gel, add 15mL of hydrochloric acid and 6.0g of glutaraldehyde aqueous solution with a mass fraction of 50% into the flask successively with a constant pressure dropping funnel, and react at room temperature for 3h. After that, 20 mL of polyvinyl alcohol (polymerization degree 1700, alcoholysis rate 99%) solution with a mass fraction of 15% was added dropwise, and the reaction was stirred at 35°C for 6 h. The product was washed with deionized water until neutral, dried and stored in a desiccator. The product is white tentacle-type silica gel powder.

Embodiment 3

[0020] Implementation Example 3: The preparation method of antenna-type L-proline methylimidazole immobilized ionic liquid

[0021] Take 3.0 g of tentacle-type silica gel powder and disperse it in 30 mL of acetonitrile, and add 0.03 mol of the product of step (4). 80 ° C reflux reaction for 12h. The product was washed three times with deionized water to remove unreacted L-proline imidazolium ionic liquid, and vacuum-dried at 60° C. for 8 hours to obtain an antenna-type amino acid immobilized ionic liquid. The final product is light yellow solid powder, and the immobilization capacity of ionic liquid is 0.3g ionic liquid / g adsorbent.

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
Adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a supported ionic liquid from silicone, polyvinyl alcohol, methylimidazole and L-proline in a chemical bonding manner. The method comprises steps as follows: (1) gamma-chloropropyltrimethoxysilane is taken as a coupling agent to react with methylimidazole, and negative ions, namely, chloride ions, of a product are replaced with hydroxide ions with the adoption of ion exchange resin; (2) the product and L-proline react, and hydroxide negative ions are replaced with amino acid negative ions; (3) a polyvinyl alcohol long chain is bonded to the silicone surface, and silicone with polyhydroxy tentacles is obtained; (4) an amino acid type methylimidazole ionic liquid with coupling agent side chains is bonded to the silicone tentacles. The method is a novel method for preparing the supported ionic liquid with the adsorption function.

Description

technical field [0001] The invention relates to a method for preparing an immobilized ionic liquid, in particular to a method for preparing an antenna-type immobilized ionic liquid by using silica gel, methylimidazole and L-proline, and belongs to the field of chemical synthesis and separation. Background technique [0002] Ionic liquid is a liquid substance that exists completely in an ionic state at room temperature or near room temperature. Compared with traditional chemical media, it has structural designability, low vapor pressure, high polarization potential, excellent solubility, and high temperature. It has been widely used in the fields of organic synthesis and separation science due to its advantages of stability and favorable kinetic control. It has been found that there is a strong interaction between it and natural active molecules in the existing separation research and application. [0003] Immobilized ionic liquid refers to a supported ionic liquid or a solid...

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): B01D15/08B01J20/10B01J20/22B01J20/26
CPCB01D15/08B01J20/103B01J20/22B01J20/261
Inventor 姚舜张薇宋航聂丽蓉
Owner SICHUAN UNIV
Features
  • Generate Ideas
  • 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