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Active manganese dioxide loaded resin material as well as preparation method and application thereof

A technology of active manganese dioxide and resin materials, applied in chemical instruments and methods, separation methods, chemical/physical processes, etc., can solve the problem of low binding fastness of active manganese dioxide, affecting the catalytic activity of the material and its performance and stability. Sexual problems, etc.

Inactive Publication Date: 2021-09-14
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the active manganese dioxide prepared in this way does not have high binding fastness on the carrier, which leads to disadvantages such as poor stability, which in turn affects the catalytic activity and performance of the material.

Method used

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  • Active manganese dioxide loaded resin material as well as preparation method and application thereof
  • Active manganese dioxide loaded resin material as well as preparation method and application thereof
  • Active manganese dioxide loaded resin material as well as preparation method and application thereof

Examples

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preparation example Construction

[0025] The invention provides a preparation method of a resin material loaded with active manganese dioxide, comprising the following steps:

[0026] 1) Swelling the chloromethylated polystyrene resin in an organic solvent, mixing the resulting swollen resin with an amino compound to carry out an amination modification reaction to obtain an aminated resin;

[0027] 2) mixing the aminated resin, water, vegetable tannin and glutaraldehyde for a cross-linking reaction to obtain a solid-loaded tannin resin;

[0028] 3) Mixing the solid-loaded tannin resin with water and potassium permanganate to carry out redox reaction to obtain a resin material loaded with active manganese dioxide.

[0029] Unless otherwise specified, the present invention has no special requirements on the sources of the raw materials used for the preparation, and commercially available products well known to those skilled in the art can be used.

[0030] In the invention, the chloromethylated polystyrene resi...

Embodiment 1

[0059]Weigh 20g of 1% divinylbenzene cross-linked chloromethylated polystyrene resin (30-50 mesh), put it into a 200mL sealable pressure reactor lined with tetrafluoroethylene, add 40g of dimethyl methylene Sulfone, stirred slowly at 45°C for 120min (stirring rate 40rpm), then added 30g of ethylenediamine, heated to 85°C after sealing, stirred and reacted for 24h, cooled to room temperature, added 50g deionized water, stirred at low speed for 20min (stirring rate 40rpm ), filtering and separating the resin, washing with deionized water to neutrality to obtain an aminated resin;

[0060] The aminated resin was transferred to a 250mL three-necked bottle, 80g of deionized water was added, stirred and dispersed for 10min (stirring speed 150rpm), and then 10g of acacia tannin was added during stirring (stirring speed 150rpm) (tannin was effective content 70%), warming up to 65°C, then dropwise adding 10g of glutaraldehyde (glutaraldehyde effective content 40%) within 60min, after t...

Embodiment 2

[0063] The consumption of the potassium permanganate aqueous solution of 0.1mol / L among the embodiment 1 is replaced by 50mL, other is the same as embodiment 1.

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Abstract

The invention belongs to the technical field of catalytic materials, and particularly relates to an active manganese dioxide loaded resin material as well as a preparation method and application thereof. The preparation method comprises the following steps: soaking resin in an organic solvent, performing swelling treatment, and performing modification reaction on the resin and an amino compound to obtain aminated resin; mixing the aminated resin, water, vegetable tannin and glutaraldehyde, and carrying out a cross-linking reaction to obtain tannin-immobilized resin; and mixing the tannin-immobilized resin with water and a potassium permanganate solution, and carrying out an oxidation-reduction reaction to obtain the active manganese dioxide-loaded resin material. In the active manganese dioxide loaded material prepared by adopting the in-situ immobilization method, manganese dioxide and oxygen in tannin molecules are coordinated and combined in a chelating form, so that the stability is high, and the problem that manganese dioxide is easy to fall off is solved.

Description

technical field [0001] The invention belongs to the technical field of catalytic materials, and in particular relates to a resin material loaded with active manganese dioxide, a preparation method and application thereof. Background technique [0002] Formaldehyde is recognized as the most common pollutant component of indoor air. The toxicity of formaldehyde to multiple organs of the human body has been confirmed at home and abroad. The purification and removal of formaldehyde in indoor and workplace air has always been a technology concerned by various industries such as environmental protection, textiles, and furniture. Among the many ways of formaldehyde treatment, converting formaldehyde into water, carbon dioxide or other non-toxic substances through catalytic technology is considered to be the most effective way to remove formaldehyde. Therefore, the catalytic removal technology of formaldehyde in the air has always been the focus of attention at home and abroad. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/32B01J31/06B01D53/86B01D53/72
CPCB01J31/32B01J31/06B01D53/8668B01D2257/70
Inventor 田润喆马贺伟范慧琳孙清黄婷王泽胜陈丽飞
Owner JIAXING UNIV