Porous adsorbent resin preparation method

An adsorption resin and pore type technology, applied in the field of synthetic polymer resins, can solve the problems of limited adsorption and desorption capacity of organic matter containing hydrogen bond acceptors, and achieve the effects of strong adsorption selectivity, strong adsorption force and large specific surface area.

Inactive Publication Date: 2013-09-04
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The application of traditional phenolic adsorption resins in the food and pharmaceutical industries has many limitations, and its ability to adsorb and desorb organic substances containing hydrogen bond acceptors is limited.

Method used

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  • Porous adsorbent resin preparation method

Examples

Experimental program
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preparation example Construction

[0024] A kind of preparation method of porous type adsorption resin, comprises the following steps:

[0025] Step 1. Add divinylbenzene, styrene, initiator (benzoyl peroxide or tert-butyl peroxide 2-ethylhexanoate), isobutyl acetate into the reaction kettle and mix thoroughly, add acrylic acid mono Phenol ester (p-phenol monoacrylate or p-phenol methacrylate) is fully mixed and stirred to obtain reactant I, wherein the mass of styrene accounts for 15% of the total mass of divinylbenzene, styrene and monophenol acrylate ~32%, the best ratio is 15%~28%, the mass of monophenol acrylate accounts for 3%~12% of the total mass of divinylbenzene, styrene and monophenol acrylate, and the best ratio is 4%~ 10%, the ratio of the mass of isobutyl acetate to the total mass of divinylbenzene, styrene and monophenol acrylate is 1:0.4~0.8, the optimal ratio is 1:0.4~0.6, the mass of the initiator and divinyl The ratio of the total mass of benzene, styrene and monophenol acrylate is 1 to 5:10...

Embodiment 1

[0036] 1. Add 81 parts of divinylbenzene, 15 parts of styrene, 2 parts of benzoyl peroxide and 125 parts of isobutyl acetate into the reaction kettle, stir for 20 minutes to fully dissolve, add p-phenol monoacrylate 4 portion, continue to stir for 30 minutes to fully dissolve.

[0037] 2. Heat 240 parts of deionized water to 75°C, add 2.5 parts of gelatin, 0.7 parts of hydroxymethyl cellulose, and 27 parts of sodium chloride, and stir for 30 minutes to fully dissolve.

[0038] 3. Add the reactant I to the reactant II under stirring, raise the temperature to 80°C, adjust the particle size of the oil phase by controlling the stirring speed, so that the particle size range is about 60 mesh, keep the reaction for 6 hours, and then raise the temperature to 90 ℃, reacted for 3 hours, then raised the temperature to 105 ℃, distilled isobutyl acetate until no oil was distilled, and obtained spherical particle resin.

[0039] 4. The obtained resin was washed with deionized water severa...

Embodiment 2

[0042] 1. Add 58 parts of divinylbenzene, 32 parts of styrene, 4 parts of benzoyl peroxide and 250 parts of isobutyl acetate into the reaction kettle, stir for 20 minutes to fully dissolve, add 10 parts of p-phenol monoacrylate portion, continue to stir for 30 minutes to fully dissolve.

[0043] 2. Heat 780 parts of deionized water to 75°C, add 3.3 parts of gelatin, 1.7 parts of hydroxymethyl cellulose, and 87.5 parts of sodium chloride, and stir for 30 minutes to fully dissolve.

[0044] 3. Add the reactant I to the reactant II under stirring, raise the temperature to 80°C, adjust the particle size of the oil phase by controlling the stirring speed, so that the particle size range is about 40 mesh, keep the reaction for 5 hours, and then raise the temperature to 90 ℃, reacted for 2 hours, then raised the temperature to 105 ℃, distilled isobutyl acetate until no oil was distilled, and obtained spherical particle resin.

[0045] 4. The obtained resin was washed with deionized wa...

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Abstract

The invention discloses a porous adsorbent resin preparation method which comprises the following steps: by taking styrene and monophenol acrylate as polymerization monomers, divinylbenzene as a crosslinking agent and isobutyl acetate as a pore-forming agent, performing suspension polymerization to obtain spherical adsorbent resin. According to the invention, the polymer monomers containing phenolic hydroxyl groups are introduced onto a polymeric chain of a polymer, so that the framework of the polymer is provided with polar groups, thereby enhancing the adsorption capacity of adsorbed substances. Experimental results show that the adsorbent resin prepared by the invention has appropriate pore size, high specific area, high adsorption selectivity and better adsorption capacity on phenol-containing organic substances.

Description

technical field [0001] The invention relates to the field of synthetic polymer resins, in particular to the synthesis of styrene-acrylic porous adsorption resins containing polyphenol structural units. Background technique [0002] High molecular polymers with porous structure and significant adsorption capacity are called adsorption resins. Because the synthetic adsorption resin has a highly cross-linked body structure, it has insoluble and infusible physical and chemical properties; in addition, the polarity of the adsorption resin can be adjusted manually , specific surface area and pore size, so it can adapt to the requirements of separation technology. Since the birth of adsorbent resin, it has been applied in the field of separation science. At present, synthetic adsorbent resin has been widely used in many industrial fields such as bioengineering, pharmaceutical chemical industry, and environmental protection. [0003] The preparation of adsorption resin is formed by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F212/08C08F220/18C08F2/18C08J9/28B01J20/26B01J20/30B01J20/28
Inventor 卫民赵剑刘军利张宁杨静
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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