Preparation and application of a magnetic episulfide resin functional material

A technology of episulfide resin and functional materials, applied in other chemical processes, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of low adsorption capacity, increase specific surface area, reduce adsorption time, The effect of increasing the specific surface area

Active Publication Date: 2021-03-12
华玻视讯(珠海)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the problem of low adsorption capacity of traditional adsorbents for Hg(II) and methylmercury, and has a higher adsorption capacity for methylmercury while achieving a larger adsorption capacity for Hg(II) , and by coating the magnetic material, the specific surface area of ​​the functional material can be increased, the number of adsorption sites can be increased, and the adsorption capacity can be improved; at the same time, the adsorption efficiency can be improved, the adsorption time can be reduced, and the purpose of rapid sewage treatment can be achieved.

Method used

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  • Preparation and application of a magnetic episulfide resin functional material
  • Preparation and application of a magnetic episulfide resin functional material
  • Preparation and application of a magnetic episulfide resin functional material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation of magnetic episulfide resin functional material comprises following preparation process:

[0030] The first step, the preparation of episulfide resin: add acetone solvent and 10g of bisphenol A epoxy resin to the reaction vessel, stir at room temperature until the bisphenol A epoxy resin is completely dissolved, and then reduce the temperature of the reaction vessel to -3°C - 0°C, then add 30.4g thiourea to it, stir until dissolved and then react at constant temperature for 80min, then raise the temperature to normal temperature and continue to react for 100min, then pour the mixture into a separatory funnel, collect the organic phase, and store the organic phase at 55°C Evaporate and remove the solvent therein to obtain episulfide resin;

[0031] The second step, ring-opening sulfuration reaction of episulfide resin: after dissolving 10g of episulfide resin prepared in the first step in acetone solution, add sodium hydroxide solution to adjust th...

Embodiment 2

[0035] A kind of preparation of magnetic episulfide resin functional material comprises following preparation process:

[0036]The first step, the preparation of episulfide resin: add acetone solvent and 10g of bisphenol A epoxy resin to the reaction vessel, stir at room temperature until the bisphenol A epoxy resin is completely dissolved, and then reduce the temperature of the reaction vessel to -3°C- 0°C, then add 30.4g thiourea to it, stir until dissolved and then react at constant temperature for 80min, then raise the temperature to normal temperature and continue to react for 120min, then pour the mixture into a separatory funnel, collect the organic phase, and store the organic phase at 55°C Evaporate and remove the solvent therein to obtain episulfide resin;

[0037] The second step, the ring-opening sulfuration reaction of the episulfide resin: after dissolving the 10g episulfide resin prepared in the first step in the acetone solution, add sodium hydroxide solution t...

Embodiment 3

[0040] A kind of preparation of magnetic episulfide resin functional material comprises following preparation process:

[0041] The first step, the preparation of episulfide resin: add acetone solvent and 10g of bisphenol A epoxy resin to the reaction vessel, stir at room temperature until the bisphenol A epoxy resin is completely dissolved, and then reduce the temperature of the reaction vessel to -3°C - 0°C, then add 30.4g thiourea to it, stir until dissolved and then react at constant temperature for 80min, then raise the temperature to normal temperature and continue to react for 100min, then pour the mixture into a separatory funnel, collect the organic phase, and store the organic phase at 55°C Evaporate and remove the solvent therein to obtain episulfide resin;

[0042] The second step, ring-opening sulfuration reaction of episulfide resin: after dissolving 10g of episulfide resin prepared in the first step in acetone solution, add sodium hydroxide solution to adjust th...

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Abstract

The invention discloses the preparation of a magnetic episulfide resin functional material, which includes the following preparation process: the first step is to prepare the episulfide resin; the second step is to open the ring of the episulfide resin and add sulfur; Sulfur episulfide resin; the fourth step, dissolve the aminated sulfur-rich episulfide resin in acetone solution, then add magnetic ferric iron tetroxide, liquid paraffin and emulsifier span-80 to it, and add concentration of 50% after ultrasonic dispersion for 30min % glutaraldehyde solution, stirred and reacted at room temperature for 5 hours, then filtered and dried to obtain the magnetic episulfide resin functional material. The magnetic episulfide resin prepared by the present invention has higher adsorption capacity to Hg(II) and methylmercury, and the maximum adsorption capacity to Hg(II) reaches 478mg.g ‑1 , the maximum adsorption capacity of methylmercury reaches 263mg.g ‑1， The removal of Hg(II) and the removal of methylmercury converted from Hg(II) can be realized simultaneously.

Description

technical field [0001] The invention belongs to the technical field, and relates to the preparation of a magnetic episulfide resin functional material and its application in wastewater treatment. Background technique [0002] The wastewater discharged from non-ferrous metal smelters contains a large amount of Hg(II), and at the same time, the wastewater discharged from pesticide production, batteries, cosmetics and other fields contains methylmercury, and Hg(II) is easily converted into Methylmercury, methylmercury is highly toxic and can easily pose a threat to the human nervous system, cardiovascular and cerebrovascular systems, and methylmercury has the ability to be enriched in the food chain, and eventually enters the human body, causing harm to the human body. Therefore, in Hg (II) can be removed when it is not converted into methylmercury, which can reduce the content of methylmercury in water, so it is necessary to study a functional material that can remove both Hg(...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/14B01J20/26B01J20/28B01J20/30C02F1/28C02F101/20C02F101/30
CPCB01J20/06B01J20/26B01J20/28009C02F1/281C02F1/285C02F2101/20C02F2101/30C08G59/1405C08G59/1438C08G59/1483C08G59/1494
Inventor 冯宪轮佟小丽何丽丽
Owner 华玻视讯(珠海)科技有限公司
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