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Functionalization hyper-crosslinked resin and preparation method thereof

A technology of ultra-high cross-linked resin and cross-linked resin, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problem of reducing the degree of ultra-high cross-linking of resin and unfavorable adsorption mass transfer , Functional groups occupy the pore space and other problems, to achieve good desorption performance and good regeneration performance

Active Publication Date: 2018-03-13
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the preparation of functionalized ultra-high cross-linked resins with chloromethylated styrene-divinylbenzene copolymers as the backbone, chloromethyl groups reduce the ultra-high cross-linking degree of the resin, and larger functional groups occupy the pore space, which does not To facilitate the mass transfer of the adsorbate inside the resin, the invention provides a functionalized ultra-high crosslinked resin and a preparation method thereof

Method used

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  • Functionalization hyper-crosslinked resin and preparation method thereof
  • Functionalization hyper-crosslinked resin and preparation method thereof
  • Functionalization hyper-crosslinked resin and preparation method thereof

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Embodiment 1

[0030] Embodiment 1. This embodiment describes the preparation method of functionalized ultra-high cross-linked resin.

[0031] (1) Add 50mL of 1,2-dichloroethane and 6g of chlorine balls into a 100mL three-necked flask equipped with a stirrer and a thermometer, and swell at room temperature for 12h.

[0032] (2) Then add 1.2g of anhydrous aluminum chloride, the system is mechanically stirred at room temperature for 30 minutes, then the system is heated to 80°C within 15 to 30 minutes, and the timing is started. After 4 hours of reaction, stop the reaction, filter out the resin, and use Rinse with industrial ethanol and pure water, and then use industrial ethanol and pure water to wash 4 times under ultrasonic, 30min each time. After cleaning, the resin was moved into a blast drying oven at 70°C and dried for 12 hours to obtain a post-crosslinking resin. The post-crosslinking reaction of the resin is as follows: figure 1 shown.

[0033] (3) Take 5 g of post-crosslinking resi...

Embodiment 2

[0037] Embodiment 2. This embodiment describes the preparation method of functionalized ultra-high cross-linked resin.

[0038] (1) Add 50mL of 1,2-dichloroethane and 6g of chlorine balls into a 100mL three-necked flask equipped with a stirrer and a thermometer, and swell at room temperature for 12h.

[0039] (2) Then add 1.2g of anhydrous aluminum chloride, the system is mixed under mechanical stirring at room temperature, the temperature of the system is raised to 80 ° C, and the timing is started. After 4 hours of reaction, the reaction is stopped, the resin is filtered out, and the resin is mixed with industrial ethanol and pure water. Rinse, and then use industrial ethanol and pure water to wash 4 times under ultrasonic, each time for 30 minutes. After cleaning, the resin is moved into a 70°C blast drying oven and dried for 12 hours to obtain a post-crosslinking resin. The post-crosslinking reaction of the resin is as follows: figure 1 shown.

[0040] (3) Take 5g of post...

Embodiment 3

[0044] Embodiment 3. This embodiment describes the preparation method of functionalized ultra-high cross-linked resin.

[0045] (1) Add 50mL of 1,2-dichloroethane and 6g of chlorine balls into a 100mL three-necked flask equipped with a stirrer and a thermometer, and swell at room temperature for 12h.

[0046] (2) Then add 1.2g of anhydrous aluminum chloride, mix the system under mechanical stirring at room temperature, heat up the system to 80°C, start timing, after 4 hours of reaction, stop the reaction, filter out the resin, and use industrial ethanol and pure water Rinse, and then use industrial ethanol and pure water to wash 4 times under ultrasonic, 30min each time. After cleaning, the resin was moved into a blast drying oven at 70°C and dried for 12 hours to obtain a post-crosslinking resin. The post-crosslinking reaction of the resin is as follows: figure 1 shown.

[0047] (3) Take 5 g of post-crosslinking resin and 50 mL of dichloroethane in a 100 mL three-necked fla...

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Abstract

The invention discloses functionalization hyper-crosslinked resin and a preparation method thereof and belongs to the field of resin synthesis. By adoption of the functionalization hyper-crosslinked resin and the preparation method, the problems that when chloromethylated styrene-divinylbenzene copolymer is adopted as a skeleton to prepare the functionalization hyper-crosslinked resin, chloromethyl groups can reduce the hyper-crosslinked degree of resin and larger functional groups occupy the space of porous channels so as to influence the mass transfer of adsorbate in the resin in the prior art are solved. The preparation method comprises the following steps of: adopting styrene-divinylbenzene as a skeleton, utilizing a nitrifying reagent to nitrify the hyper-crosslinked resin, then usinga reducing agent to reduce nitryl into amino groups, and introducing functional groups containing nitrogen and oxygen elements into a hyper-crosslinked resin skeleton so as to prepare a series of nitrified and reduced resin. The functionalization hyper-crosslinked resin and the preparation method can be used in the fields of synthesis of resin with high adsorbing property, treatment of productionwaste water of aromatic compounds, resource recovery and environmental analysis of nitrophenol and the like.

Description

technical field [0001] The invention belongs to the field of resin synthesis, and in particular relates to a functionalized super-crosslinked resin and a preparation method thereof. Background technique [0002] The resin with styrene as monomer and divinylbenzene as crosslinking agent has excellent mechanical properties, high specific surface area, rich pore structure, and large adsorption capacity, and has been widely used in sewage treatment, resource recovery and other fields . Such resins include: macroporous adsorption resins, ultra-high cross-linked resins and functional-based resins. [0003] Functional grouping is to introduce some special functional groups on the surface of macroporous resin and ultra-high cross-linked resin by means of chemical modification, so as to change the physical and chemical properties of the resin and further improve the adsorption selection of the resin for a certain type of adsorbate. The purpose of sex and adsorption capacity. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F212/36C08F8/04C08F8/30B01J20/26B01J20/30C02F1/28
CPCB01J20/265C02F1/285C08F8/04C08F8/30C08F212/08C08F212/36
Inventor 咸漠刘金鑫王传红卫改霞徐超鲁宏文孙伟之秦晓丽
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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