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Pnenolic aldehyde type adsorption resin and preparation method thereof

A technology of adsorption resin and phenolic formaldehyde, which is applied in chemical instruments and methods, and other chemical processes, can solve the problems of limited adsorption capacity and waste, and achieve the effect of simple process, low investment cost, and easy industrialized large-scale production

Inactive Publication Date: 2007-10-31
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports (Hu Xien, Bai Runsheng, Wang Xuejun, Journal of Tsinghua University (Natural Science Edition), 1996, 36 (12): 13~17) the annual production of 1000t caffeine factory theophylline mother liquor discharge is 12kt, if not reclaimed cause serious waste
[0004] Conventional resins have limited adsorption capacity for active ingredients of traditional Chinese medicines containing hydrogen bond acceptors, while phenolic hydroxyl is a good hydrogen bond donor and is easy to form hydrogen bonds with active ingredients of traditional Chinese medicines containing hydrogen bond acceptors

Method used

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  • Pnenolic aldehyde type adsorption resin and preparation method thereof
  • Pnenolic aldehyde type adsorption resin and preparation method thereof
  • Pnenolic aldehyde type adsorption resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0082] Step 1: Mix 80 mL of ethylene glycol, 7.0 g of paraformaldehyde, and 10.0 g of phenol at a ratio of 13.7:2.2:1 (molar ratio), and add 2.25 g of dispersant Span80 (sorbitan monooleate)

[0083] In the above system, continue to stir until uniform. Oil phase: take 400mL liquid wax;

[0084] Step 2: Add the mixture in (1) into the liquid wax, start stirring, 100-150 rpm, raise the temperature to 70-75°C, and keep the temperature constant for 1-2 hours;

[0085] Step 3: Add 2 mL of concentrated hydrochloric acid containing (HCl) 36-38%, continue to stir and keep the temperature constant for 1 hour, adjust the stirring speed to make the size of the oil droplet appropriate (to ensure that the resulting spherical phenolic adsorption resin has an appropriate size), slowly Raise the temperature to 100°C for 5 hours, then raise the temperature to 130-140°C for 5 hours;

[0086] Step 4: After the polymerization reaction is completed, the material is discharged, the resin is filte...

Embodiment 2

[0088] Step 1: Mix ethylene glycol 60mL, paraformaldehyde 7g, and phenol 10.0g according to 10.2:2.2:1 (molar ratio), and stir until uniform;

[0089] Step 2: Continue to stir at 100-150 rpm, slowly raise the temperature to 70-75°C, and keep the temperature constant for 1-2 hours;

[0090] Step 3: Add 2 mL of concentrated hydrochloric acid containing (HCl) 36-38%, stir rapidly and heat up to 95°C for 1-2 hours;

[0091] Step 4: Stop the reaction, remove the colloid from the three-necked bottle, and put it in an oven at 130°C for 3 hours;

[0092] Step 5: Take out the hard solid. Crushing, sieving, extracting, vacuum drying, and preparing a macroporous granular phenolic adsorption resin with a particle size of 0.25-0.6 mm and only containing phenol units.

Embodiment 3

[0094] Step 1: Mix 67mL of ethylene glycol, 11.0g of paraformaldehyde, 9.4g of phenol, and 7.3g of catechol according to 12.2:3.7:1:0.7 (molar ratio), and add 2.0g of dispersant Span80 to the above system , continue to stir until uniform. Oil phase: take 400mL of liquid wax;

[0095] Step 2: Add the mixture in (1) into the liquid wax, start stirring, 100-150 rpm, raise the temperature to 70-75°C, and keep the temperature constant for 1-2 hours;

[0096] Step 3: Add 2 mL of concentrated hydrochloric acid containing (HCl) 36-38%, continue to stir and keep the temperature constant for 1-2 hours, adjust the stirring speed to make the size of the oil droplet suitable (to ensure that the spherical phenolic adsorption resin produced has a suitable spherical diameter) , slowly raise the temperature to 82°C for 1 hour, slowly raise the temperature to 100°C for 5 hours, then raise the temperature to 130-140°C for 5 hours;

[0097] Step 4: After the polymerization reaction is completed...

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Abstract

The invention discloses a preparing method of pnenolic aldehyde type adsorbing resin and preparing, which comprises the following steps: comprising large hole spherical (or granular) with fenol unit pnenolic aldehyde type absorbing resin, large hole spherical (or granular) with catechol unit pnenolic aldehyde type absorbing resin and large hole granular pnenolic aldehyde type absorbing resin with phloroglucine unit; choosing cavaform (or formaldehyde water solution), fenol or catechol or phloroglucine raw material to prepare large hole spherical (or granular) pnenolic aldehyde type adsorbing resin; adopting anti-phase floating polycondensation method or solution polycondensation method to synthesize under existence of special hole agent ethandiol (or glycerin); finishing synthesized reaction under existence of acid catalyst. This preparing method is simple and can finish with one step, which can simplify process and decrease cost.

Description

technical field [0001] The present invention relates to phenolic type adsorption resin and preparation method thereof, particularly relate to the macroporous spherical (or granular) phenolic type adsorption resin that only contains phenol unit, the macroporous spherical (or granular) containing catechol unit Phenolic type adsorption resin, macroporous granular phenolic type adsorption resin containing phloroglucinol unit and preparation method thereof. Background technique [0002] Caffeine, also known as caffeine (1,3,7-trimethylxanthine), is an alkaloid in tea, coffee, cocoa and some other plants. The content in tea is relatively high, about 1%-5%, caffeine As a central nervous system stimulant in medicine, it is used for the treatment of central respiratory failure, neurasthenia, and elimination of fatigue. The methods of extracting medicinal caffeine from tea include sublimation method, solvent method, adsorption method and supercritical CO 2 Extraction method (Huang Ji...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/10B01J20/26
Inventor 王重
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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