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A super-highly cross-linked macroporous adsorption resin suitable for the removal of patulin

An ultra-high cross-linking and patulin technology, applied in the field of polymer chemistry, can solve the problems of low patulin removal rate, unsatisfactory requirements, and low processing capacity, and achieve potential hazards and small average pore size , High removal efficiency

Active Publication Date: 2016-08-17
AMICOGEN CHINA BIOPHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resins reported in the above literature have a low removal rate of patulin in fruit juice, and the treatment capacity is not high, and the selectivity is poor. While removing patulin, other small molecular substances in fruit juice are also removed. Can not meet the market requirements for resins with high throughput and high removal rate

Method used

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  • A super-highly cross-linked macroporous adsorption resin suitable for the removal of patulin
  • A super-highly cross-linked macroporous adsorption resin suitable for the removal of patulin
  • A super-highly cross-linked macroporous adsorption resin suitable for the removal of patulin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of low-crosslinked macroporous polystyrene white balls

[0046] Take the following components by weight:

[0047] 88 parts of styrene monomer

[0048] Divinylbenzene 5 parts

[0049] 70 parts of toluene

[0050] Benzoyl peroxide 0.5 parts

[0051] The oil phase composed of the above components mixed uniformly was placed in water together, reacted for 18 hours at 60°C, and suspended polymerization to obtain cross-linked macroporous polystyrene white balls with a cross-linking degree of 4%.

[0052] Gelatin is added to the water, water and gelatin form a dispersion medium, the amount of gelatin is 0.5% of the weight of the dispersion medium, and the volume ratio of the amount of dispersion medium to the oil phase is 1:1;

[0053] (2) Preparation of chloromethylated macroporous polystyrene resin

[0054] The macroporous polystyrene white ball obtained in step (1) was reacted with chloromethyl ether at 37°C for 24 hours under the catalysis of anhydrous ...

Embodiment 2

[0061] (1) Preparation of low-crosslinked macroporous polystyrene white balls

[0062] Take the following components by weight:

[0063] 90 parts of methyl styrene monomer

[0064] Divinylbenzene 10 parts

[0065] 100 parts of 200# gasoline

[0066] 1 part benzoyl peroxide

[0067] The oil phase composed of the above components mixed uniformly was placed in water together, and reacted for 16 hours at 80°C to suspend polymerization to obtain cross-linked macroporous polystyrene white balls with a cross-linking degree of 8%.

[0068] Polyvinyl alcohol is added to the water, water and polyvinyl alcohol form a dispersion medium, the amount of polyvinyl alcohol is 1% of the weight of the dispersion medium, and the volume ratio of the amount of dispersion medium to the oil phase is 1:2;

[0069] (2) Preparation of chloromethylated macroporous polystyrene resin

[0070] The macroporous polystyrene white ball obtained in step (1) was reacted with chloromethyl ether at 40°C for 18...

Embodiment 3

[0077] (1) Preparation of low-crosslinked macroporous polystyrene white balls

[0078] Take the following components by weight:

[0079] 97 parts of styrene monomer

[0080] Divinylbenzene 13 parts

[0081] 100 parts of toluene

[0082] 50 parts of liquid paraffin

[0083] Benzoyl peroxide 1.5 parts

[0084] The oil phase composed of the above components mixed uniformly was placed in water together, reacted for 14 hours at 90°C, and suspended polymerization to obtain cross-linked macroporous polystyrene white balls with a cross-linking degree of 9.5%.

[0085] Carboxymethyl cellulose is added to the water, water and carboxymethyl cellulose form the dispersion medium, the amount of carboxymethyl cellulose is 2% of the weight of the dispersion medium, and the volume ratio of the dispersion medium to the oil phase is 1: 3;

[0086] (2) Preparation of chloromethylated macroporous polystyrene resin

[0087] The macroporous polystyrene white ball obtained in step (1) was reac...

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Abstract

The invention provides ultrahigh cross-linked macro-porous adsorption resin which is obtained by taking a styrene monomer as a functional monomer, taking a multi-vinyl monomer as a cross-linking agent, suspending and polymerizing in the presence of a pore forming agent to obtain low-cross-linked macro-porous polystyrene white ball, reacting the obtained white ball with chloromethyl ether under the catalysis of lewis acid to obtain chloromethylation macro-porous polystyrene resin, and carrying out a Friedel-Crafts alkylation reaction on the obtained chloromethylation macro-porous polystyrene resin in the presence of a swelling agent by taking the lewis acid as a catalyst. Through adopting a novel cross-linking agent and pore forming agent system, the obtained resin has the advantages of high specific surface area and uniform pore diameter; the specific surface area is up to 1500-1800m<2> / g, the pore diameter distribution is uniform, a pore channel is dense and the average pore diameter is small; the pore diameter of the obtained macro-porous resin is rightly applicable to removal of patulin in juice and the removing efficiency is high; the resin can be used for pointedly removing the patulin which stably exists in the juice and the potential hazards on the human health, caused by the patulin in the juice, are solved; the ultrahigh cross-linked macro-porous adsorption resin has great social and economic benefits.

Description

technical field [0001] The invention relates to the field of polymer chemistry, in particular to an ultra-high cross-linked macroporous adsorption resin suitable for adsorbing patulin and a preparation method thereof, in particular to an ultra-high cross-linked macroporous adsorption resin for removing patulin in fruit juice Preparation method and application of cross-linked macroporous adsorption resin. Background technique [0002] The structural formula of patulin is as follows figure 1 , the experimental formula is C 7 h 6 o 4 , with a molecular weight of 154.12, patulin is the second metabolite of a variety of toxic fungi, mainly found in apples, apple products and grape juice. The teratogenicity and mutagenicity of patulin have been discovered in many years of research, which has aroused great concern from experts and scholars in health, toxicology, medicine, food production and safety in various countries. In 1972, Scott first reported the presence of patulin in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F212/12C08F212/36C08F2/20C08F8/24C08J9/28C08J3/24B01J20/26B01J20/30B01D15/08
Inventor 毛剑英罗文军高博王玲
Owner AMICOGEN CHINA BIOPHARM CO LTD
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