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Organic pollution resistance ion exchange resin, and preparation method and application of resin

A technology of ion exchange resin and polluting ions, which is applied in ion exchange, cation exchange, anion exchange, etc. It can solve the problems of short service life and low removal rate, and achieve the effects of not easily polluting the resin, improving resin pores, and facilitating the entry and exit of organic matter

Active Publication Date: 2013-12-25
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low removal rate and short service life of existing ion exchange resins, the present invention provides an anti-organic pollution ion exchange resin and its preparation method and application, through which the ability of ion exchange resins to resist organic pollution can be improved, and there is It is beneficial to the regeneration of ion exchange resin and improves the service life of ion exchange resin

Method used

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  • Organic pollution resistance ion exchange resin, and preparation method and application of resin
  • Organic pollution resistance ion exchange resin, and preparation method and application of resin
  • Organic pollution resistance ion exchange resin, and preparation method and application of resin

Examples

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Comparison scheme
Effect test

Embodiment 1

[0050] A method for preparing an anti-organic pollution ion exchange resin, characterized in that the preparation steps of adding the ion exchange resin are:

[0051] (1) Preparation of the oil phase: The oil phase contains monomers, crosslinking agents, and initiators, the weight ratio of the monomers to the crosslinking agents is 1:0.02-0.45, and the weight ratio of the monomers to the initiators is 1 : 0.003~0.15; The monomer of the present invention belongs to the monomer that the oil phase in the resin prepared by prior art personnel often adopts, and cross-linking agent and initiator are also common materials of those skilled in the art, so the present invention no longer one by one describe. In this embodiment, methyl acrylate is used as the monomer, and the weight ratio of the monomer to the crosslinking agent is 1:0.35, and divinylbenzene is used as the crosslinking agent in this embodiment. The weight ratio of the monomer to the initiator is 1:0.10, and the initiato...

Embodiment 2

[0075] A method for preparing an anti-organic pollution ion-exchange resin, characterized in that the preparation steps of adding the ion-exchange resin are the same as in Example 1, the difference being:

[0076] (1) Preparation of oil phase: the weight ratio of monomer to crosslinking agent is 1:0.02, and the weight ratio of monomer to initiator is 1:0.003;

[0077] (2) Preparation of the water phase: add a dispersant accounting for 3% of the mass ratio of the water phase to the water phase; the ratio of the total mass of the water phase to the total mass of the oil phase is 1:0.8; where the dispersant refers to a mass ratio of 1: 1 mixture of polyvinyl alcohol and silicate.

[0078] (3) Modification of inorganic particles: Stir at 250rpm for 4h at 20°C; add modifier and continue stirring for 0.5h; finally, dry; the mass ratio of inorganic particles to methanol solution is 1:10; the modification The mass ratio of neutralizing agent to inorganic particles is 1:5.

[0079] (...

Embodiment 3

[0088] A method for preparing an anti-organic pollution ion-exchange resin, characterized in that the preparation steps of adding the ion-exchange resin are the same as in Example 1, the difference being:

[0089] (1) Preparation of oil phase: the weight ratio of monomer to crosslinking agent is 1:0.45, and the weight ratio of monomer to initiator is 1:0.15.

[0090] (2) Preparation of the water phase: add 0.2% dispersant to the water phase; the ratio of the total mass of the water phase to the total mass of the oil phase is 1:0.4; where the dispersant refers to a mass ratio of 1: 1 mixture of polyvinyl alcohol and silicate.

[0091] (3) Modification of inorganic particles: Stir at 250rpm for 4h at 20°C; add modifier and continue stirring for 0.5h; finally, dry; the mass ratio of inorganic particles to methanol solution is 1:3-10; The mass ratio of modifier to inorganic particles is 1:0.05-5.

[0092] (4) Addition of inorganic particles after modification: In the water phase...

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Abstract

The invention discloses organic pollution resistance ion exchange resin, and a preparation method and an application of the resin, and belongs to the technical field of improving performances of the ion exchange resin. During preparation of the ion exchange resin, an inorganic particle which is wrapped with a modifier and is equivalent to 0.1-30% of mass of the resin is added to increase a water content of the resin by 3-30%, so that a resin structure is improved, and the regeneration efficiency of the resin is improved by 0.4-70%. The organic pollution resistance of the ion exchange resin in the water treatment application can be improved, the service life of the ion exchange resin is prolonged, the ion exchange resin can be regenerated and used stably for a long term in the water treatment application, ensure a water treatment effect and avoid complicated operation and cost pressure caused by frequent resin replacement, and the method is simple, effective and low in cost.

Description

technical field [0001] The invention relates to an anti-organic pollution ion exchange resin and its preparation method and application. Specifically, it is a method for increasing the water content of the resin by adding inorganic particles to improve the anti-organic pollution of the ion exchange resin, which belongs to the field of improving the performance of the ion exchange resin technology field. Background technique [0002] Ion exchange resin is a polymer particle with charged functional groups that is widely used in water treatment. Its water treatment process has a wide range of water quality tolerance, high hydraulic load treatment stability, and can avoid secondary damage caused by drug administration. Pollution, easy operation and low cost. Because of its functional characteristics such as exchange and adsorption, it can effectively recover heavy metal ions, remove charged organic substances in organic wastewater, and purify water. In actual water treatment, ...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F212/08C08F212/36C08F220/32C08F251/00C08F2/20C08F2/18C08F2/44C08K9/10C08K3/34C08K3/22C08K3/26C08K3/08C08K3/36B01J39/20B01J41/14B01J43/00C02F1/42
CPCC08F2/20C08F212/08C08F220/06C08F220/44C02F2103/16C02F2103/30C02F2103/32C08F292/00B01J39/20B01J41/14B01J39/17C02F1/42C08F220/325C02F2001/422C02F2001/425C02F2101/103C02F2101/18C02F2101/20C02F2101/22C02F2101/308C02F2101/34C02F2103/007C02F2103/34
Inventor 李爱民李海波双陈冬周庆杨琥张满成周扬
Owner NANJING UNIV
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