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Macroporous absorbent resin, preparation method thereof and use thereof

A pore adsorption and resin technology, applied in the field of macroporous adsorption resin and its preparation, can solve problems such as low adsorption efficiency, and achieve the effects of improved extraction rate and simple preparation method

Inactive Publication Date: 2009-10-21
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventor's experimental group once applied for patent 200710043757.9, and studied the method of extracting and preparing sesamin with HZ816 modified resin, but the resin was not specially developed for sesamin adsorption, and its adsorption efficiency was relatively low when sesamin was adsorbed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Pretreatment of acrylic resin: 5 g of acrylic resin was rinsed with deionized water, 95% ethanol by volume and absolute ethanol in sequence, and then dried in a vacuum oven at 50° C. to constant weight.

[0025] Add 5g of pretreated acrylic resin into a 250mL Erlenmeyer flask, add 10mL of dimethyl sulfoxide to swell for 8h, then add 0.5g of catalyst anhydrous aluminum chloride and 1g of glycerol, react at 40°C for 8h, and cool the reactant After suction filtration, wash with deionized water-1mol / L NaOH-deionized water-1mol / L HCl-deionized water-95% ethanol-absolute ethanol, and dry to obtain glycerol grafted resin.

[0026] Obtained indirectly according to the change of the amount of glycerol before and after the reaction, the glycerol grafting rate of the prepared macroporous adsorption resin is 90 mg glycerol / g acrylic resin.

[0027] Each 4g of macroporous adsorbent resin and acrylic resin are mixed with 40g sesame oil (sesamin content is 4.38mg / g) respectively throu...

Embodiment 2

[0029] Acrylic resin pretreatment is the same as in Example 1.

[0030] Add 5g of pretreated acrylic resin to a 250mL Erlenmeyer flask, add 10mL of dimethyl sulfoxide to swell for 8h, then add 0.5g of catalyst anhydrous aluminum chloride and 5g of glycerol, react at 80°C for 8h, and cool the reactant After suction filtration, wash with deionized water-1mol / L NaOH-deionized water-1mol / L HCl-deionized water-85% ethanol-absolute ethanol, and dry to obtain glycerol grafted resin.

[0031] Obtained indirectly according to the change in the amount of glycerol before and after the reaction, the glycerol grafting rate of the prepared macroporous adsorption resin is 121mg glycerol / g acrylic resin.

[0032] Each 4g of macroporous adsorbent resin and acrylic resin are mixed with 40g sesame oil (sesamin content is 4.38mg / g) respectively through making, under 190rpm vibration interval sampling analysis, measure the concentration of sesamin in sesame oil with HPLC, Until the adsorption equ...

Embodiment 3

[0034] Acrylic resin pretreatment is the same as in Example 1.

[0035] Add 5g of pretreated acrylic resin to a 250mL Erlenmeyer flask, add 50mL of dimethyl sulfoxide to swell for 24h, then add 2g of catalyst anhydrous aluminum chloride and 1g of glycerol, react at 40°C for 24h, and cool the reactant Suction filtration, washing with deionized water-1mol / L NaOH-deionized water-1mol / L HCl-deionized water-90% ethanol-absolute ethanol, and drying to obtain glycerol grafted resin.

[0036] Obtained indirectly according to the change of the amount of glycerol before and after the reaction, the glycerol grafting rate of the prepared macroporous adsorption resin is 102 mg glycerol / g acrylic resin.

[0037] Each 4g of macroporous adsorbent resin and acrylic resin are mixed with 40g sesame oil (sesamin content is 4.38mg / g) respectively through making, under 190rpm vibration interval sampling analysis, measure the concentration of sesamin in sesame oil with HPLC, Until the adsorption eq...

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Abstract

The invention discloses a macroporous absorbent resin, which is a glycerol graft modified acrylic resin. The invention also relates to a preparation method of the macroporous absorbent resin and the use of the macroporous absorbent resin. The macroporous absorbent resin is used for extracting sesamin from sesame oil and is obviously improved in adsorption rate, free from pollution, and extremely environmentally-friendly.

Description

technical field [0001] The invention relates to a macroporous adsorption resin and its preparation method and application. Background technique [0002] Macroporous adsorption resin is a kind of artificially synthesized polymer material with porous network structure, and it is a new type of macromolecular adsorbent without exchange groups. By chemically modifying the surface structure of the macroporous adsorption resin, the surface chemical state of the adsorption resin can be changed, and the adsorption selectivity of the macroporous adsorption resin can be changed. [0003] Generally speaking, macroporous adsorption resins have a hydrophobic cross-linked skeleton, and are mainly used to adsorb organic substances in aqueous phase systems, such as extracting glutathione from Candida utilis homogenate, but they are used to adsorb organic substances in oil phase systems. The macroporous adsorption resin has not been reported yet. [0004] As a natural component in sesame, s...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30
Inventor 周家春张敏
Owner EAST CHINA UNIV OF SCI & TECH