Boron adsorption resin containing difunctional groups

A bifunctional and adjacent hydroxyl bifunctional technology, applied in the field of functional polymers, can solve the problems of poor adsorption rate and stability, cumbersome resin synthesis process, etc., and achieve the effect of increasing the adsorption capacity

Inactive Publication Date: 2010-07-14
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of resin has high selectivity to boron in the solution, but this resin is affected by various external conditions in application, and after continuous development, people have synthesized many new adsorption resins, but these resins have certain problems. If the adsorption rate and stability are poor, the resin synthesis process is cumbersome

Method used

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  • Boron adsorption resin containing difunctional groups
  • Boron adsorption resin containing difunctional groups

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 1g PS-Acyl-Br (cross-linking degree: 0% (V / V) DVB), 1.790 galactosamine, 20ml N,N-dimethylformamide and add it into a stirred reactor, react at 90°C 7 hours. That is, the supported amount was obtained to be 2.12 mmol / g.

Embodiment 2

[0016] Weigh 1g of PS-Acyl-Br resin (cross-linking degree: 7% (V / V) DVB; particle size 5μm), 3.580g of N-methylglucamine, 20ml of water into the reactor equipped with stirring, 80 ℃ React for 5 hours. That is, the supported amount was 2.51 mmol / g.

Embodiment 3

[0018] Weigh 1g PS-Acyl-Cl resin (cross-linking degree: 7% (V / V) DVB; particle size 200μm), 0.3804g N-methylglucamine, 25ml tetrahydrofuran into the reactor equipped with stirring, 60 ℃ The reaction was 3.5 hours. That is, the supported amount was 0.50 mmol / g.

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Abstract

The invention discloses boron adsorption resin containing difunctional groups and a preparation method thereof. The boron adsorption resin containing the difunctional groups is characterized in that the boron adsorption resin containing the difunctional groups is prepared by the reaction of halogenated acylation resin and amino sugar. The carrying quantity of the difunctional groups of the boron adsorption resin prepared by the method is 0.1 to 2.8mmol/g, and the preparation process of the resin is safe and simple. The difunctional groups of alpha-glycyl and orthohydroxy group in the resin generate a synergistic action, the functions of adsorption and chelation of the resin to boron are enhanced, and the resin can replace the traditional boron-specific resin.

Description

technical field [0001] The invention belongs to the field of functional polymers. It specifically relates to a boron-absorbing resin containing two functional groups. Background technique [0002] As an important industrial raw material, boron is widely used in many fields such as metallurgy, nuclear technology, military industry, aerospace, energy, agriculture, medicine and automobiles. The discharge of a large amount of sewage in the production process of boron compounds not only leads to the loss of a large amount of boron resources, but also causes serious pollution to the environment. The boron-containing wastewater that is lost and pollutes the environment is not discharged up to the standard, which makes the boron content in people's drinking water sources too high, thus causing many diseases. The World Health Organization (WHO) requires that the concentration of boron in drinking water be less than 0.3 mg / L. Therefore, the study on the treatment and reuse of boron ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F12/08C08F8/32B01J20/26
Inventor 刘晓宁魏荣卿曹飞婷
Owner NANJING UNIV OF TECH
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