Preparation method of novel attapulgite powder compound ion exchange fiber aerogel

A technology of ion exchange fiber and attapulgite powder, which is applied in the field of attapulgite to achieve obvious kinetic advantages, fast exchange and elution speed, and effective adsorption

Inactive Publication Date: 2016-11-16
安徽金联地矿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Combining the functions of the above two raw materials, the technology of making an attapulgite powder composite ion exchange fiber airgel has not been found in the prior art, and a solution is now provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a novel attapulgite powder composite ion-exchange fiber airgel, the preparation method comprising the following specific steps: calcining 150-mesh attapulgite powder at 9000°C for 7 hours under aerobic conditions, adding to the calcined attapulgite powder A certain amount of sodium carboxymethyl cellulose and disodium edetate, wherein, the weight ratio of attapulgite powder and sodium carboxymethyl cellulose, disodium edetate, distilled water is 1.1:2.5:3.8: 9. After mixing evenly, add distilled water and stir at 1000 rpm to form a uniform airgel;

[0021] Add polypropylene fiber to an appropriate amount of ethylene glycol, and add diethylenetriamine, and reflux at 400°C for 4 hours under stirring, wherein the weight ratio of polypropylene fiber to ethylene glycol and diethylenetriamine is 1.8:2.2 : 1.5; after the product was washed and dried, soaked in the aqueous solution system containing ferrous ammonium sulfate and acrylamide, the concentrati...

Embodiment 2

[0023] Calcinate 200-mesh attapulgite powder at 800°C for 8 hours under aerobic conditions, and add a certain amount of sodium carboxymethylcellulose and disodium edetate to the calcined attapulgite powder, wherein the attapulgite powder and carboxylate The weight ratio of sodium methylcellulose, disodium edetate, and distilled water is 1:3:3.5:10. After mixing evenly, add distilled water and stir with an electric motor at 800 rpm to form a uniform airgel ;

[0024] Add polypropylene fiber to an appropriate amount of ethylene glycol, and add diethylenetriamine, reflux at 450°C for 3 hours under stirring, wherein the weight ratio of polypropylene fiber to ethylene glycol and diethylenetriamine is 2:2 : 2; after washing and drying the product, soak it in an aqueous solution system containing ferrous ammonium sulfate and acrylamide, the concentration of the aqueous solution is 35%, nitrogen gas flow for 15 minutes, 80 ° C water bath reaction for 6 hours, washing the final product...

Embodiment 3

[0026] Calcinate 100-mesh attapulgite powder at 1000°C under aerobic conditions for 6 hours, and add a certain amount of sodium carboxymethyl cellulose and disodium edetate to the calcined attapulgite powder. The weight ratio of sodium methylcellulose, disodium ethylenediamine tetraacetate, and distilled water is 1.2:2:4:8. After mixing evenly, add distilled water and stir with an electric motor at 1200 rpm to form a uniform airgel ;

[0027] Add polypropylene fiber to an appropriate amount of ethylene glycol, and add diethylenetriamine, and reflux at 300°C for 5 hours under stirring, wherein the weight ratio of polypropylene fiber to ethylene glycol and diethylenetriamine is 1.5:2.5 : 1; after washing and drying the product, soak it in the aqueous solution system containing ferrous ammonium sulfate and acrylamide, the concentration of the aqueous solution is 45%, pass nitrogen gas for 15 minutes, react in a water bath at 80° C. for 6 hours, wash the final product with water t...

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PUM

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Abstract

The invention discloses a preparation method of a novel attapulgite powder compound ion exchange fiber aerogel. The preparation method comprises the following specific steps that a certain amount of sodium carboxymethylcellulose and ethylene diamine tetraacetic acid are added into burnt attapulgite powder, distilled water is added after uniform mixing, and electric stirring is carried out to form uniform aerogel; polypropylene fiber is added into the appropriate amount of ethanediol, diethylenetriamine is added, a backflow reaction is carried out in the stirring state, the product is washed, dried in air and soaked in a water solution system containing ammonium ferrous sulfate and acrylamide, nitrogen is introduced for a water bath reaction, the final product is washed to be neutral, and ion exchange fiber is obtained; a certain amount of aerogel is shifted to be mixed with ion exchange fiber to be uniform, a certain amount of ammonium persulfate is added as an initiator, the mixture continues to be stirred to be uniform at the freezing temperature, and the product is obtained. The novel attapulgite powder compound ion exchange fiber aerogel can effectively adsorb acid gas such as SO2, HC1, Cl2 and HF and anion organic pollutant in the water phase, and is high in adsorption speed and large in adsorption capacity.

Description

technical field [0001] The invention belongs to the field of attapulgite technology and relates to a preparation method of novel attapulgite powder composite ion exchange fiber airgel. Background technique [0002] Ion exchange fiber is a fibrous ion exchange material. When the ion exchange fiber is in contact with the electrolyte solution, the ions on the fiber can be selectively exchanged with the ions in the solution. It is divided into cation exchange fibers, anion exchange fibers and amphoteric ion exchange fibers. Ion exchange fiber can be used to adsorb heavy metals and pigments. As a new functional polymer material, it has unique chemical and physical adsorption and separation properties, and has an irreplaceable role in some related fields. Adsorbent materials have become a research hotspot in the field of environmental pollution control technology because of their large surface area, fast ion exchange speed, easy regeneration, and wide applicability. [0003] Att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/26B01J20/30
CPCB01J20/28047B01J20/12B01J20/24B01J20/265B01J2220/46
Inventor 秦月琴任飞孙忠伟明桂林吴海东王前张传琦牛杏杏王赞王代飞
Owner 安徽金联地矿科技有限公司
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