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An activated carbon felt-supported polymeric ionic liquid composite material and its preparation method and its application in removing carboxymethyllysine from brewed soy sauce

A technology of polymerizing ionic liquid and activated carbon felt, which is applied in the direction of ion exchange, ion exchange regeneration, ion exchange treatment device, etc., can solve the problems of limiting the effective use of ionic liquid, small two-phase interface, difficult recovery, etc., to improve the extraction rate and Reusability, low cost, and high removal efficiency

Inactive Publication Date: 2019-04-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ionic liquids have high viscosity. When extracting organic pollutants in water, the two-phase interface is small and recovery is difficult, which limits the effective use of ionic liquids.
Activated carbon fiber felt adsorption materials have the advantages of large specific surface area, fast adsorption speed, large adsorption capacity and easy regeneration, but the selectivity of activated carbon fiber felt needs to be further improved according to specific applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix 1.0 mL of 1-allyl-3-methylimidazolium tetrafluoroborate and 30.0 mL of ethanol, stir at room temperature for 10 minutes, add 2.0 g of activated carbon felt, and heat to 76 ° C under the protection of nitrogen. After 24 hours of reaction, After cooling to room temperature and drying in vacuum, the obtained precipitate is activated carbon felt-supported polymeric ionic liquid composite material.

[0026] In 100 mL of brewed soy sauce, the brewed soy sauce was passed through a filter screen equipped with 1 g of activated carbon felt-supported polymeric ionic liquid composite, and the flow rate of the brewed soy sauce was 10 mL / min at room temperature. Table 1 shows the concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after passing through the activated carbon felt-loaded polymeric ionic liquid composite filter.

[0027] Table 1

[0028]

[0029] The results in Table 1 show...

Embodiment 2

[0031] Mix 1.0 mL of 1-allyl-3-butylimidazolium tetrafluoroborate and 12.0 mL of ethanol, stir at room temperature for 30 minutes, add 10.0 g of activated carbon felt, and heat to 70 ° C under nitrogen protection. After 48 hours of reaction, After cooling to room temperature and drying in vacuum, the obtained precipitate is activated carbon felt-supported polymeric ionic liquid composite material.

[0032] 100 mL of brewed soy sauce was passed through a filter screen equipped with 2 g of activated carbon felt-loaded polymeric ionic liquid composite material, and the flow rate of brewed soy sauce was 20 mL / min at room temperature. Table 2 shows the concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after flowing through the activated carbon felt-loaded polymeric ionic liquid composite filter.

[0033] Table 2

[0034]

[0035] The results in Table 2 show that the polymeric ionic liqu...

Embodiment 3

[0037] Mix 1.0 mL of 1-allyl-3-methylimidazole bistrifluoromethanesulfonimide salt with 21.0 mL of ethanol, stir at room temperature for 20 minutes, add 3.30 g of activated carbon felt, and heat to 73 °C under nitrogen protection to react After 36 hours, it was cooled to room temperature and dried in vacuum, and the obtained precipitate was activated carbon felt-supported polymeric ionic liquid composite material.

[0038] 100 mL of brewed soy sauce was passed through a filter screen equipped with 3 g of activated carbon felt-loaded polymeric ionic liquid composite material, and the flow rate of brewed soy sauce was 10 mL / min at room temperature. Table 3 shows the concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after passing through the activated carbon felt-loaded polymeric ionic liquid composite filter.

[0039] table 3

[0040]

[0041] The results in Table 3 show that the act...

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PUM

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Abstract

An activated-carbon-felt loaded polymerized ionic liquid composite material, a preparing method thereof, and an application of the composite material for removing carboxymethyl lysine from brewed soy sauce are disclosed and belong to the technical field of food safety and quality. The invention includes preparation of the composite material and the application of the composite material for removing carboxymethyl lysine from brewed soy sauce. The composite material is prepared by adsorbing an allyl-containing functional ionic liquid by utilizing an activated carbon felt and performing heating polymerization, and is used for removing carboxymethyl lysine from brewed soy sauce. The method is simple and convenient in operation, low in cost, simple in processing process and high in removing efficiency.

Description

technical field [0001] The invention belongs to the technical field of food safety and quality, and in particular relates to an activated carbon felt-loaded polymerized ionic liquid composite material, a preparation method thereof and an application in removing carboxymethyllysine in brewed soy sauce. Background technique [0002] advanced glycation products (AGEs) S ) is a general term for a series of highly oxidized compounds produced by Maillard reactions in food or biological systems. In recent years, a large number of studies at home and abroad have confirmed that AGE S It has adverse effects on human health. After the human body ingests food containing AGEs, the AGEs in the food enter the body, resulting in an increase in the AGES content in the blood and body fluids, which will reduce the defense function of the human immune system and increase the risk of diabetes, kidney disease, and cardiovascular disease in the crowd. Risk of chronic diseases such as disease and...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30B01D15/08A23L27/50
CPCB01D15/08B01J20/20B01J20/22B01J2220/46
Inventor 安小宁许晓
Owner SOUTH CHINA UNIV OF TECH
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