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Environmental functional composite material based on nano granule inorganic functional agent

A functional composite material and nanoparticle technology, applied in the field of high-performance environmental functional composite materials, can solve the problems of high-pressure head loss, difficulty in continuous use, etc.

Inactive Publication Date: 2008-03-19
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only that, whether it is nano-particles or micro-particles, if it is directly applied to a fluid treatment system such as a fixed bed or fluidized bed process, it will easily produce extremely high head loss, and it is difficult to use continuously
Therefore, the two bottlenecks in the practical application of inorganic functional agents are: (1) the stabilization technology of nano-particle inorganic functional agents; (2) the solution technology of high pressure head loss when fine-grained inorganic functional agents are directly applied

Method used

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  • Environmental functional composite material based on nano granule inorganic functional agent

Examples

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Embodiment 1

[0022] Environmentally functional composites based on nanoparticulate zirconium thiophosphate. Its basic structure can be expressed as: the carrier of the composite material is an ion exchange resin or adsorption resin with a nanoporous structure, and the average pore size is between 1-50nm; the carrier resin of the above-mentioned materials can be X-5, AB-8 (these two. The resins are produced by Nankai University Resin Factory), Amberlite XAD-4, XAD-7 (the above two resins are produced by American Rohm Haas Company), CHA-101, NDA-150, NDA-7 (the above three resins are produced by Jiangsu Nankai University) Gord Environmental Protection Technology Co., Ltd.) and other adsorption resins and NDA-88 (containing amino groups), NDA-99 (containing amino groups, the above two resins are produced by Jiangsu Nanda Gord Environmental Protection Technology Co., Ltd.), D-001 (containing sulfonic acid groups) ), D-201 (containing quaternary ammonium root, these two resins are produced by H...

Embodiment 2

[0026]Environmentally functional composites based on nanoparticulate titanium phosphate. Its basic structure can be expressed as: the carrier of the composite material is an ion exchange and adsorption resin with a nanoporous structure, the average pore size is between 1-50nm, and the surface of the resin has a sulfonic acid group or a carboxylic acid group or a phosphonic acid group or a quaternary ammonium group. Ion or tertiary amine group or secondary amine group or primary amine group or without functional agent, generally can be X-5, AB-8, CHA-101, XAD-4, NDA-150, XAD-7, NDA-7, etc. Adsorption resin and composite functional resin or ion exchange resin such as NDA-88, NDA-99, D-001, D-201, Amberlite IR-900, IRA-120, Purolite C-100, A-400, etc. Among them, D- 001, IRA-102, A-400 and other cation exchange resins. The pores of the resin are coated with nano-particle titanium phosphate, the weight percentage of which is between 10-40%, and the particle size is 0.5-30 nm.

...

Embodiment 3

[0030] Environmentally functional composites based on nanoparticulate hydrated manganese oxide. Its basic structure can be expressed as: the carrier of the composite material is a cation or anion exchange resin, the average pore size is between 1-60nm, and the resin surface has a sulfonic acid group or a carboxylic acid group or a phosphonic acid group or a quaternary ammonium ion or a tertiary amine group. Or secondary or primary amine, common resins are D-001, D-201, D-301, Amberlite IR-900, NDA-88, NDA-99 and other ion exchange resins. For the removal of cationic pollutants, cation exchange resins such as D-001, IRA-102, and A-400 are preferred, and for the removal of anionic pollutants such as As, cation exchange resins such as D-201, IRA-900, and C-100 are preferred. The pores of the resin are coated with nano-particle hydrated manganese oxide, the weight percentage of which is between 1-20%, and the particle size is 0.5-45nm.

[0031] The preparation method of the mater...

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Abstract

The invention relates to an environment functional composite material based on inorganic functional agent of nano-particles. The invention has the structure that: (1) the composite supporter is ion-exchange and polymeric adsorbent with a nano-hole structure; (2) the internal surface of a supporter is coated with an inorganic functional agent of nano-particles. The apparent density of the environment functional composite material generally is 0.70-1.20 g / ml, and weight percent content of the inorganic functional agent is 1-40 percent, and the particle size generally is less than the hole diameter of the supporter, about 0.5-80mm, and the adsorbent particle size is 0.5-1.5mm, and with the particle size, the high pressure head loss problem caused by applying inorganic functional agent of fine particles in the flow pattern system can be overcame. The material accomplishes the stability of inorganic functional agent of nano-particles, which greatly improve the use efficiency of the inorganic functional agent, and furthermore provides a technical support for realizing deep purification and safety control of numerous trace pollutants in environment.

Description

technical field [0001] The invention relates to a high-performance environmental functional composite material for deeply purifying trace pollutants in an environmental medium, in particular to an environmental functional composite material based on nano-particle inorganic functional agents. Background technique [0002] In recent years, a large number of studies have shown that many inorganic functional agents, such as hydrated iron oxide, hydrated manganese oxide, zirconium phosphate, zirconium thiophosphate, titanium phosphate, Al / Si composite inorganic substances, etc. Excellent adsorption separation and purification performance, at the same time, the above inorganic functional agents have the characteristics of being environmentally friendly, chemically stable, highly insoluble in water and organic solvents, and generally exist in micron-sized particles. In 2006, Yavuz et al published a paper in Science (C.T. Yavuz, Low-field magneticseparation of monodisperse Fe 3 O ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00
Inventor 潘丙才张炜铭潘丙军陈新庆吕路张庆建苏庆张庆瑞贾坤蒋佩娟杜伟张全兴
Owner NANJING UNIV
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