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Thioamide group-containing resin as well as preparation method and application thereof

A thioamide group, thioamide group technology, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the complex preparation process, high preparation cost, limited practical application, etc. problem, to achieve the effect of simple preparation process

Pending Publication Date: 2022-02-11
NANKAI CANGZHOU BOHAI NEW AREA GREENING CHEM RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chelating resins containing sulfur groups reported in the literature often have the disadvantages of complicated preparation process, high preparation cost, or low adsorption capacity, which limits their practical application in the treatment of mercury ion wastewater.

Method used

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  • Thioamide group-containing resin as well as preparation method and application thereof
  • Thioamide group-containing resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Mix 34.8g of acrylonitrile and 5.2g of divinylbenzene (63% content) evenly, add 0.2g of azobisisobutyronitrile and stir to dissolve it, which is called the oil phase. Dissolve 1.5g of polyvinyl alcohol (type 1788) and 15g of sodium chloride in 300mL of deionized water, called the aqueous phase. Add the oil phase to the water phase, start mechanical stirring, adjust the stirring speed to disperse the oil phase into small oil droplets, make the peak of the diameter distribution of the oil droplets be about 0.4mm, heat the system to reach 65°C and keep it for 6 hours , and then heated to 75 ° C and maintained for 4 hours. Stop heating, let the system cool down, collect the obtained resin by filtration, wash the resin with hot water several times, and dry it in the air. The obtained resin is called white ball PCN-1.

[0016] Add 18g of sodium hydrosulfide to 50mL of water, then add 10g of white ball PCN-1, and heat to reflux for 4 hours. Cool and filter, and the obtained ...

Embodiment 2

[0018] Mix 71.6g of acrylonitrile, 5.2g of divinylbenzene (63% content), 3.2g of triallyl isocyanurate and 40g of toluene, add 0.4g of azobisisobutyronitrile and stir to dissolve it , called the oil phase. Dissolve 2.5g of polyvinyl alcohol (type 1788) and 25g of sodium chloride in 500mL of deionized water, called the aqueous phase. Add the oil phase to the water phase, start the mechanical stirring, adjust the stirring speed so that the oil phase is dispersed into small oil droplets, so that the peak of the diameter distribution of the oil droplets is about 0.4mm, heat the system to reach 65°C and keep it for 6 hours , and then heated to 75 ° C and maintained for 4 hours. Stop heating, let the system cool down, collect the obtained resin by filtration, wash the resin with hot water several times, dry it in the air, extract it with acetone for 8 hours with a Soxhlet extractor, and dry it in the air. The obtained resin is called white ball PCN-2.

[0019] Add 18g of sodium hy...

Embodiment 3

[0022] Mix 71.6g of acrylonitrile, 5.2g of divinylbenzene (63% content), 3.2g of triallyl cyanurate, 20g of toluene and 20g of cyclohexanol, and add 0.4g of azobisisobutyronitrile And stir to make it dissolve, called the oil phase. Dissolve 2.5g of polyvinyl alcohol (type 1788) and 25g of sodium chloride in 500mL of deionized water, called the aqueous phase. Add the oil phase to the water phase, start the mechanical stirring, adjust the stirring speed so that the oil phase is dispersed into small oil droplets, so that the peak of the diameter distribution of the oil droplets is about 0.4mm, heat the system to reach 65°C and keep it for 6 hours , and then heated to 75 ° C and maintained for 4 hours. Stop heating, let the system cool down, collect the obtained resin by filtration, wash the resin with hot water several times, dry it in the air, extract it with acetone for 8 hours with a Soxhlet extractor, and dry it in the air. The obtained resin is called white ball PCN-3.

[...

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Abstract

The invention provides a thioamide group-containing cross-linked polymer resin, wherein the resin is a cyano group-containing resin obtained by copolymerization of a functional monomer containing double bonds and cyano groups and a cross-linking agent containing two or more double bonds; and the obtained cross-linked polymer resin containing cyano groups reacts with a compound containing sulfhydryl ions to obtain resin containing thioamide groups, and the obtained resin containing thioamide groups has a good adsorption effect on mercury ions. The prepared thioamide group-containing resin has the advantages of high mercury ion adsorption capacity, simple synthesis process and low cost.

Description

technical field [0001] The invention relates to the field of resins for adsorbing mercury ions, in particular to a resin containing thioamide groups as an adsorbent for mercury ions. Background technique [0002] With the development of modern industry, some toxic and harmful substances will inevitably pollute the environment. For example, some industries, especially mining, often produce a large amount of waste water containing mercury ions. Mercury ions have very serious toxic and side effects on animals and plants. Mercury ions in water can be enriched in the human body through the food chain, and the mercury ions enriched in the human body are difficult to excrete through metabolism, causing accumulation to people's health. Sexual irreversible damage, leading to nerve damage, movement disorders, vision loss, hearing loss, mood swings, heart failure and other symptoms. Therefore, how to economically and effectively treat wastewater containing mercury ions is an urgent pr...

Claims

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Application Information

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IPC IPC(8): C08F220/44C08F212/36C08F8/34C08F226/06C08F220/50C08F222/14B01J20/26B01J20/28B01J20/30C02F1/28C02F101/20
CPCC08F220/44C08F8/34C08F220/50B01J20/265B01J20/28026C02F1/285C02F2101/20C08F212/36C08F226/06C08F222/102Y02P10/20
Inventor 阎虎生李沂航张肆硕
Owner NANKAI CANGZHOU BOHAI NEW AREA GREENING CHEM RES CO LTD
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