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Preparation Technology of Coral Porous Adsorption Resin

A technology of porous adsorption resin and preparation process, applied in other chemical processes, chemical instruments and methods, alkali metal compounds, etc., can solve the problems such as the inability to adjust the pore size effectively, the specific surface area of ​​phenolic resin is small, and the pore structure is single, and the cost is achieved. Low, wide applicability, simple process effect

Active Publication Date: 2018-04-24
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As early as 2004, Liu Jian et al. used formaldehyde and resorcinol as raw materials to synthesize phenolic resin microspheres of different sizes using the Stöber method. However, the specific surface area of ​​the phenolic resin synthesized by this method is small, and the pore structure is single and fragile. Aperture cannot be effectively adjusted
Most importantly, the method cannot be properly modified to obtain porous materials of other compositions

Method used

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  • Preparation Technology of Coral Porous Adsorption Resin
  • Preparation Technology of Coral Porous Adsorption Resin
  • Preparation Technology of Coral Porous Adsorption Resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Preparation of coral-like porous m-phenylenediamine-formaldehyde resin with cyclohexane and tetrahydrofuran as reaction solvents.

[0026] Take 0.5 g of m-phenylenediamine in 24 mL of cyclohexane, disperse for 30 min, take 1 mL of formaldehyde in 4 mL of tetrahydrofuran, disperse for 30 min, mix and transfer to a two-necked flask, adjust the pH to 1-6 with hydrochloric acid, and control The temperature was 60°C, and the reaction was carried out for 5 hours. After the reaction, the obtained product was washed three times with deionized water and three times with cyclohexane, and dried at 80°C to obtain a coral-like porous polymer material.

[0027] The product was identified as a porous structure by a scanning electron microscope. It was proved by nitrogen adsorption-desorption that it contains hierarchical pore structure and pore distribution.

Embodiment 2

[0028] Example 2: Preparation of coral-like porous adsorption resin with ethanol and water as reaction solvents.

[0029] Take 0.5 g of m-phenylenediamine in 24 mL of ethanol, disperse for 30 min, take 1 mL of formaldehyde and disperse in 4 mL of water for 30 min, mix and transfer to a two-necked flask, adjust the pH to 1-6 with hydrochloric acid, and control the temperature at 60 ℃, reacted for 3 h, and after the reaction, the obtained product was washed three times with deionized water and cyclohexane three times, and dried at 80 ℃ to obtain a coral-like porous polymer material.

[0030] The product was identified as a porous structure by a scanning electron microscope. It was proved by nitrogen adsorption-desorption that it contains hierarchical pore structure and pore distribution.

Embodiment 3

[0031] Example 3: Preparation of coral-like porous adsorption resin with isopropanol and water as reaction solvents.

[0032] Take 0.5 g of m-phenylenediamine in 24 mL of isopropanol, disperse for 30 minutes, take 1 mL of formaldehyde in 4 mL of water, disperse for 30 minutes, mix and transfer to a two-necked flask, adjust the pH to 1-6 with hydrochloric acid, and control the temperature at 60 °C, reacted for 3 h, after the reaction, the obtained product was washed three times with deionized water, washed three times with cyclohexane, and dried at 80 °C to obtain a coral-like porous polymer material.

[0033] The product was identified as a porous structure by a scanning electron microscope. It was proved by nitrogen adsorption-desorption that it contains hierarchical pore structure and pore distribution.

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Abstract

The invention belongs to the field of resin preparation, and particularly relates to a preparation process of coralliform porous adsorption resin. An existing adsorption resin synthesis process and structure are improved through the process. The process comprises the steps that an amidogen monomer is dissolved in one solvent, a monomer capable of being polymerized with amidogen is dissolved in the other solvent, the two solvents are mixed, an appropriate catalyst is added into the mixture, and therefore the coralliform porous adsorption resin is obtained. The porous resin is of a hierarchical pore structure, can selectively adsorb polar compounds in water, and has the wide application prospect in sewage treatment and matter purification.

Description

technical field [0001] The invention belongs to the field of resin preparation, in particular to a preparation process of coral-like porous adsorption resin. Background technique [0002] At present, porous materials have a large specific surface area and special pore distribution, which can enrich and adsorb a large number of small molecular compounds, and have broad application prospects in sewage treatment, natural product purification and other fields. There are also many ways to synthesize porous materials. The traditional method is to use MCM-41, mesoporous SiO 2 , Porous inorganic materials such as zeolite are used as hard templates to synthesize, the disadvantage of this method is that it takes a long time and the cost is high. In recent years, Zhao Dongyuan et al. used amphiphilic surfactants as templates to synthesize ordered mesoporous polymers and carbon materials with corresponding structures ( Angew Chem Int Ed Engl, 2005. 44(43): p. 7053-9 ). Moreover, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G12/08C08G12/12C08G12/32B01J20/26B01J20/28B01J20/30
CPCB01J20/262B01J20/28042B01J20/28054C08G12/08C08G12/12C08G12/32
Inventor 邹伟唐楷颜杰杨益祥苏桂萍那仁格日勒朱建民
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING