Preparation method of macroporous adsorption resin

A pore adsorption and resin technology, applied in the field of macroporous resin preparation, can solve the problems of secondary pollution, large environmental pollution, poor separation effect, etc., and achieve the effect of high porosity and improved separation effect.

Inactive Publication Date: 2016-06-01
YANGTZE RIVER PHARMA GRP BEIJING HAIYAN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The phenolic resin prepared by this method has a wide pore size distribution and poor separation effect
The main emissions of this preparation method are formaldehyde, methanol, concentrated hydrochloric acid or concentrated

Method used

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  • Preparation method of macroporous adsorption resin

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] Take 40g of ethylene-vinyl acetate, 150g of methacrylonitrile and 450g of styrene with a weight percentage of 53% in a beaker, add 640g toluene, 320g xylene, 6.4g benzoyl peroxide and 6.4g azo Diisobutyronitrile is mixed until it is homogeneous to obtain an oil phase.

[0023] Take 1000 g of deionized water, add 10 g of polyvinyl alcohol, 10 g of gelatin, and 100 g of sodium chloride under stirring, and stir to dissolve, and then add 1000 g of deionized water and mix well to prepare the water phase.

[0024] Take 900g of the water phase and place it in the flask, take 300g of the oil phase and add it to the water phase, turn on the stirrer, adjust the speed to 30 rpm, and start to slowly increase the temperature when the oil droplet size is 0.3mm, and the temperature rise rate is 2℃ / 10 points. When it reaches 66°C, react at a constant temperature for 2 hours. Then increase the temperature to 68°C at the same rate and react for 4 hours; then increase the ...

Example Embodiment

[0029] Example 2

[0030] Take 80 g of ethylene-vinyl acetate, 350 g of methacrylonitrile and 800 g of styrene with a weight percentage of 55% in a beaker, add 1845 g toluene, 1845 g xylene, 36.9 g benzoyl peroxide and 36.9 g azo Diisobutyronitrile is mixed until it is homogeneous to obtain an oil phase.

[0031] Take 1000 g of deionized water, add 28 g of polyvinyl alcohol, 20 g of gelatin, and 200 g of sodium chloride while stirring, and stir to dissolve, then add 1000 g of deionized water and mix well to prepare the water phase.

[0032] Take 1500g of the water phase and place it in the flask, take 300g of the oil phase and add it to the water phase, turn on the stirrer, adjust the speed to 60 rpm, and start to slowly increase the temperature when the oil droplet size is 1.0mm, and the temperature rise rate is 2℃ / 10 points. When it reaches 68°C, react at a constant temperature for 2 hours. Then increase the temperature to 71°C at the same rate and react for 6 hours; then incre...

Example Embodiment

[0037] Example 3

[0038] Take 60g of ethylene-vinyl acetate, 250g of methacrylonitrile and 620g of 54% styrene by weight and place them in a beaker. Add 1162.5g of toluene, 930g of xylene, 14g of benzoyl peroxide and 14g of azobis Isobutyronitrile is mixed until it is homogeneous to obtain an oil phase.

[0039] Take 1000 g of deionized water, add 20 g of polyvinyl alcohol, 15 g of gelatin, and 150 g of sodium chloride under stirring, and stir to dissolve, and then add 1000 g of deionized water and mix well to prepare the water phase.

[0040] Take 1200g of water phase and place it in the flask, take 300g of oil phase and add it to the water phase, turn on the stirrer, adjust the speed to 45 rpm, and start to slowly increase the temperature when the oil droplet size is 0.6mm, and the temperature rise rate is 2℃ / 10 points. When it reaches 67°C, react at a constant temperature for 2 hours. Then increase the temperature to 69°C at the same speed and react for 5 hours; then increase...

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Abstract

The invention relates to a preparation method of macroporous adsorption resin. The preparation method comprises 1, mixing ethylene-vinyl acetate, methacrylonitrile and styrene as monomers, a toluene-xylene mixed pore forming agent and a benzoyl peroxide-azodiisobutyronitrile mixed initiator to obtain an oil phase, 2, dissolving polyvinyl alcohol, gelatin and sodium chloride in deionized water and stirring the solution for full dissolution to obtain a water phase, 3, putting the oil phase into the water phase, carrying out reaction and curing and carrying out filtration and 4, washing the filtered beads through hot water and washing the beads through ethanol to obtain the macroporous adsorption resin. The macroporous adsorption resin has aperture sizes the same to sizes of traditional Chinese medicinal material effective components, has high porosity and improves separation effects.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of a macroporous resin. The obtained macroporous resin is used to extract active ingredients of traditional Chinese medicine. Background technique [0002] Macroporous adsorption resin is a kind of organic high polymer adsorbent prepared by polymerizing monomers and additives such as crosslinking agent, porogen, and dispersant through polymerization. It is generally milky white spherical particles with stable physical and chemical properties, insoluble in acids, alkalis and organic solvents, and is not interfered by inorganic salts, strong ions, and low-molecular compounds. It has good physical properties, can be reused many times, and is relatively easy to regenerate. [0003] The macroporous adsorption resin selectively adsorbs organic compounds through adsorption and molecular sieve principles. According to the difference in adsorption forc...

Claims

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Application Information

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IPC IPC(8): C08F255/02C08F212/08C08F220/42C08J9/26B01J20/26B01J20/30
Inventor 夏道云闫利颖杨作鹏孔海龙王海盛
Owner YANGTZE RIVER PHARMA GRP BEIJING HAIYAN PHARMA
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