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Amino-modifying interpenetrating resin adsorbent and preparing method thereof

A resin adsorption, amino modification technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high investment and operation cost, easy blockage of pore size, slow adsorption rate, etc., achieve high adsorption capacity, reduce chloromethylation Steps, the effect of reducing the equilibration time

Inactive Publication Date: 2015-12-02
NANJING NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that the existing resins can only be operated in fixed bed or moving bed mode, the adsorption rate is slow, the pore diameter is easy to block, and the investment and operation costs are high, the present invention provides an amino-modified interpenetrating resin adsorbent and its preparation method. The particle size is between 300-500 microns, the pore size is large, the surface area is moderate, and it has the advantages of large adsorption capacity, fast adsorption speed, easy desorption, and good regeneration effect.

Method used

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  • Amino-modifying interpenetrating resin adsorbent and preparing method thereof
  • Amino-modifying interpenetrating resin adsorbent and preparing method thereof
  • Amino-modifying interpenetrating resin adsorbent and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Taking 10g of resin white balls as an example, use 25mL of amino interpenetrating resin adsorbent beads (basic structure such as figure 1 shown)

[0044] The preparation method is as follows:

[0045] Dissolve 2g of gelatin, 1.05g of trisodium phosphate, 4.2g of disodium hydrogen phosphate and 32.5g of sodium chloride in 250mL of deionized water, heat to 55°C to dissolve it completely, then add 12.5g of divinylbenzene, 12.5g Glycidyl methacrylate, 0.5g benzoyl peroxide, 0.5g azobisisobutyronitrile and 62.5g oil phase of toluene, heated to 70°C to start the reaction, reacted at 75°C for 2h, heated to 80°C to react 2h, and then heated to 90°C for 10h to complete the reaction to obtain white resin balls, which were washed with deionized water and acetone at 65°C to remove impurities.

[0046] Take 10 g of cleaned resin white balls and add them to the reaction device, use 100 mL of ethanol to swell for 1 hour, then extract excess ethanol, add 25 mL of dimethylamine soluti...

Embodiment 2

[0051] Taking 20g of resin white balls as an example, use 75mL of amino interpenetrating resin adsorbent beads modified with a dimethylamine solution with a concentration of 5mol / L

[0052] The preparation method is as follows:

[0053] Take 2.5g of gelatin, 1.05g of trisodium phosphate, 4.2g of disodium hydrogen phosphate and 32.5g of sodium chloride and dissolve them in 250mL of deionized water, heat to 53°C to dissolve them completely, then add 12.5g of divinylbenzene, 12.5 g glycidyl methacrylate, 0.5g benzoyl peroxide, 0.5g azobisisobutyronitrile and 45g oil phase of toluene, heated to 70°C to start the reaction, reacted at 75°C for 1.5h, heated to 80°C React for 1.5 hours, then heat to 95° C. and react for 11 hours to obtain white resin balls. Use 75° C. deionized water and ethanol to wash away impurities.

[0054] Take 20g of cleaned resin white balls and add them to the reaction device, use 100mL of ethanol to swell for 1 hour, then extract excess ethanol, add 75mL of...

Embodiment 3

[0059] Taking 30g of resin white balls as an example, use 160mL of dimethylamine solution with a concentration of 5mol / L to modify the amino interpenetrating resin adsorbent beads

[0060] The preparation method is as follows:

[0061] Dissolve 3g of gelatin, 1.05g of trisodium phosphate, 4.2g of disodium hydrogen phosphate and 32.5g of sodium chloride in 250mL of deionized water, heat to 51°C to dissolve completely, then add 12.5g of divinylbenzene, 12.5g Glycidyl methacrylate, 0.5g benzoyl peroxide, 0.5g azobisisobutyronitrile and 40g toluene oil phase, heated to 70°C to start the reaction, reacted at 75°C for 1.5h, heated to 80°C to react After 1.5 hours, heat to 95° C. and react for 13.5 hours to obtain white resin balls. Use 72° C. deionized water and ethanol to wash away impurities.

[0062] Take 20g of cleaned resin white balls and add them to the reaction device, use 100mL of ethanol to swell for 1 hour, extract excess ethanol, add 150mL of dimethylamine solution with...

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Abstract

The invention discloses a kind of mutual penetration amino modified resin adsorbent and its preparation method, belonging to the resin synthesis field, to overcome the existing only resin adopts the model of fixed bed and moving bed operation, adsorption rate is slow, aperture easily blocked, investment, operation cost is high. This invention adopts suspension polymerization technique, in containing a dispersant and water phase to oil instead of pH buffer should be resin white balls, oil phase by reaction monomer, crosslinking agent, initiator and solvent composition, resin white balls by organic solvent swelling after adding different volume of amine solution to react, then add the crosslinking agent, swelling, after join crosslinking initiator target product was got. The invention of the preparation of amino modified the mutual penetration of resin adsorbent particle size between 300-500 microns, with large aperture, surface area, moderate characteristics of regenerative adsorption effect is good.

Description

technical field [0001] The invention belongs to the field of resin synthesis, and more specifically relates to an amino-modified interpenetrating resin adsorbent and a preparation method thereof. Background technique [0002] Resin is a kind of porous, highly cross-linked polymer sphere. This kind of polymer material overcomes the disadvantages of poor mechanical strength and low adsorption capacity of traditional adsorbents, and has a large specific surface area and high mechanical strength. It can be extracted from water adsorb certain substances. The biggest feature of the resin is that the structure of the resin, such as the specific surface area and pore size distribution of the resin, can be adjusted by adjusting the ratio of the monomer and the porogen during the polymerization process, so that the resin can specifically remove certain or certain types of pollution in the water body things. In addition, the porous resin also has the advantage of being easy to regene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/32C08F212/36C08F8/32C08J9/28C08J3/24B01J20/26B01J20/30
Inventor 杨维本张子炜杨朕卓宁王芳贾淑颖李煜堃蒲京红王玉萍
Owner NANJING NORMAL UNIVERSITY
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