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Porous microsphere-like adsorbent resin having function of selective adsorption to lead ions and preparation method thereof

A technology for adsorbing resin and lead ions, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve problems such as weak selective separation, achieve good compatibility and save use costs , Excellent selective adsorption effect

Active Publication Date: 2017-07-25
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, common methods, including SPE, suffer from weak selective separation

Method used

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  • Porous microsphere-like adsorbent resin having function of selective adsorption to lead ions and preparation method thereof
  • Porous microsphere-like adsorbent resin having function of selective adsorption to lead ions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 (best embodiment)

[0029] The proportioning of this product and raw material or the step (process flow) of this method are as follows:

[0030] A porous microspherical adsorption resin with selective adsorption to lead ions, characterized in that:

[0031] It is mainly prepared from the following components according to the following ratio:

[0032] Lead ion, deionized water, 4-vinylpyridine, crosslinking agent, polyvinyl alcohol, toluene, azobisisobutyronitrile;

[0033] The mass ratio of described deionized water and functional monomer is 14:1,

[0034] The mol ratio of described lead ion and functional monomer is 4:1,

[0035] The molar ratio of the molar sum of the lead ion and the functional monomer to the crosslinking agent is 1:2,

[0036] Described dispersant is 1% of functional monomer mass,

[0037] The volume ratio of described porogen and deionized water is 1:6,

[0038] The initiator is 1% of the mass of the functional monomer.

[0039]...

Embodiment 2

[0045] The proportioning of this product and raw material or the step (process flow) of this method are as follows:

[0046] A porous microspherical adsorption resin with selective adsorption to lead ions, characterized in that:

[0047] It is mainly prepared from the following components according to the following ratio:

[0048] Lead ion, deionized water, 4-vinylpyridine, crosslinking agent, polyvinyl alcohol, toluene, azobisisobutyronitrile;

[0049] The mass ratio of described deionized water and functional monomer is 13:1,

[0050] The mol ratio of described lead ion and functional monomer is 3:1,

[0051] The molar ratio of the molar sum of the lead ion and the functional monomer to the crosslinking agent is 1:3,

[0052] Described dispersant is 2% of functional monomer mass,

[0053] The volume ratio of described porogen and deionized water is 1:7,

[0054] The initiator is 2% of the mass of the functional monomer.

[0055] The cross-linking agent is formed by mixin...

Embodiment 3

[0061] The proportioning of this product and raw material or the step (process flow) of this method are as follows:

[0062] A porous microspherical adsorption resin with selective adsorption to lead ions, characterized in that:

[0063] It is mainly prepared from the following components according to the following ratio:

[0064] Lead ion, deionized water, 4-vinylpyridine, crosslinking agent, polyvinyl alcohol, toluene, azobisisobutyronitrile;

[0065] The mass ratio of described deionized water and functional monomer is 15:1,

[0066] The mol ratio of described lead ion and functional monomer is 5:1,

[0067] The molar ratio of the molar sum of the lead ion and the functional monomer to the crosslinking agent is 1:2.5,

[0068] Described dispersant is 1.5% of functional monomer mass,

[0069] The volume ratio of described porogen to deionized water is 1:6.5,

[0070] The initiator is 1.5% of the mass of the functional monomer.

[0071] The cross-linking agent is formed...

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Abstract

The invention relates to porous microsphere-like adsorbent resin having a function of selective adsorption to lead ions. The porous microsphere-like adsorbent resin is mainly prepared from lead ions, deionized water, a functional monomer, a crosslinking agent, a dispersant, a pore-foaming agent and an initiator. The experimental results show that the prepared lead metal ion imprinted polymer has excellent selective adsorption effects on template ions and after use 10 times, the polymer can keep a high adsorbing capacity so that a cost is reduced in the use amount of the adsorbent in industrial use, manpower and material resources consumed by repeated loading and unloading of the adsorbent are greatly reduced and a use cost is greatly reduced.

Description

technical field [0001] The invention relates to a metal ion adsorption resin, in particular to a porous microspherical adsorption resin capable of selectively adsorbing lead ions and a preparation method thereof. [0002] technical background [0003] With the improvement of social science and technology, the industry has developed rapidly, but the resulting industrial waste has seriously affected the environment and people's lives. Therefore, how to manage such problems has been a serious problem in recent years. An important category of industrial pollutants is sewage, which includes many harmful heavy metals, such as copper, nickel, zinc, lead, arsenic, palladium, etc. When discharged into the environment, these heavy metals will seriously harm the human body, such as accumulating Toxins, brain damage, and cancer, among others. At present, a variety of heavy metal ion removal methods have been developed, including liquid-liquid extraction (E.Carasek, Talanta 51(2000) 173...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F226/06C08J9/26B01J20/26B01J20/30B01J20/28C08L25/08
CPCB01J20/268B01J20/28021B01J20/28054C08F212/08C08F226/06C08J9/26C08J2201/04C08J2325/08
Inventor 姜旸席曼
Owner JIAXING UNIV
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