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Macropore adsorption resin as well as preparation method and application thereof

A technology of pore adsorption and resin, which is applied in the field of polymer chemistry and can solve problems such as not being suitable for large-scale production, failing to meet requirements, and the amount of resin adsorption is not large.

Active Publication Date: 2012-12-05
AMICOGEN CHINA BIOPHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A macroporous adsorption resin containing a ketone group is obtained by carrying out Foster's acylation reaction on the white ball of the resin. The ketone group can selectively adsorb the stevioside in the stevioside, but the adsorption amount of the resin synthesized by this method is not large, so it cannot It meets the market's requirements for high-adsorption resins, and its preparation method is relatively simple, which is not suitable for large-scale production

Method used

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  • Macropore adsorption resin as well as preparation method and application thereof
  • Macropore adsorption resin as well as preparation method and application thereof
  • Macropore adsorption resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: the preparation of macroporous polystyrene resin

[0037] Add 1500ml of purified water into a 3000ml reactor equipped with a thermometer, condensing reflux device and stirring, add 15g of gelatin while stirring, raise the temperature to 55°C, after the gelatin is completely dissolved, add 200g of styrene, 300g of Divinylbenzene (content is 55.7%), 200g 200 # The mixture composed of gasoline, 2.5g benzoyl peroxide, etc. After the organic mixture forms uniform droplets of a certain size in the dispersion medium solution, the temperature is raised to 75°C, polymerized for 3 hours, heated to 80°C for 7 hours, and then heated to 85°C ℃, continue curing for 6 hours and then stop the reaction. Rinse with a lot of water, sieve, control the particle size between 20-70 mesh, then put the sphere into a Soxhlet extractor, extract with acetone for 12 hours to remove the porogen, and finally wash the acetone in the sphere with water Clean and dry to get white balls of...

Embodiment 2

[0038] Embodiment 2: the preparation of macroporous polystyrene resin

[0039] The proportioning ratio is: 200g styrene, 36g divinylbenzene (55.7% content), 470g toluene and 2.35g benzoyl peroxide, and refer to Example 1 for the remaining operations.

Embodiment 3

[0040] Embodiment 3: the preparation of terephthaloyl chloride

[0041]Add 166g of terephthalic acid into a reaction flask containing 120g of ethylene dichloride, add thionyl chloride and stir evenly, reflux at 80°C for 6 hours, then distill out thionyl chloride and ethylene dichloride under reduced pressure, namely To get terephthaloyl chloride.

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Abstract

The invention relates to the field of high molecular chemistry, in particular to novel diketone -containing superhigh crosslinking macropore adsorption resin and a preparation method thereof. The preparation method comprises the following steps of: carrying out suspension polymerization with styrene as a monomer and a polyethylene monomer as a crosslinking agent in the presence of a porogenic agent to obtain a white ball; and carrying out Friedel-Crafts acidylating reaction on the obtained white ball and paraphthaloyl chloride in the presence of a catalyst to obtain resin, i.e. novel diketone-containing superhigh crosslinking macropore adsorption resin. The obtained adsorption resin has the advantages of high mechanical strength and large specific surface area and the like and contains ketone polar groups. The obtained resin has the advantages of large adsorption quantity, high selectivity, and the like particularly in adsorbing and purifying stevia sugar, and has greater social benefits and economic benefits.

Description

technical field [0001] The invention relates to the field of macromolecular chemistry, in particular to a macroporous adsorption resin and a preparation method thereof, in particular to a novel diketone group-containing ultrahigh cross-linked macroporous adsorption resin and a preparation method thereof. Background technique [0002] Macroporous adsorption resin belongs to functional polymer materials and is a kind of organic polymer adsorbent, mainly using styrene, divinylbenzene, α-methylstyrene, methyl methacrylate, acrylonitrile, etc. as raw materials to add a certain amount The porogen is polymerized. The macroporous adsorption resin selectively adsorbs organic compounds through adsorption and molecular sieve principles. According to the difference in adsorption force and molecular weight, organic compounds are eluted on the macroporous adsorption resin with a certain solvent to achieve the purpose of separation. Because the macroporous adsorption resin has good physic...

Claims

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Application Information

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IPC IPC(8): C07H15/256B01J20/26C07H1/08B01J20/30
Inventor 李树英毛剑英颜学锋王玲
Owner AMICOGEN CHINA BIOPHARM CO LTD
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