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Magnetic bamboo fiber and preparation process thereof

A preparation process, bamboo fiber technology, applied in other chemical processes, radioactive pollutants, magnetic field/electric field water/sewage treatment, etc., can solve the problems of easy migration, low activity, high biological toxicity, etc., to achieve low preparation cost, Fewer categories and the effect of controlling product supersaturation

Pending Publication Date: 2020-12-08
EAST CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The radioactive elements contained in radioactive wastewater can only reach a natural level with low activity through natural decay, and it has the characteristics of high biological toxicity, thermal stability, and easy migration.

Method used

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  • Magnetic bamboo fiber and preparation process thereof
  • Magnetic bamboo fiber and preparation process thereof
  • Magnetic bamboo fiber and preparation process thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0027] The preparation technology of magnetic bamboo fiber comprises the steps:

[0028] (a) According to the ratio of the above-mentioned components, weigh ferrous sulfate tetrahydrate, ferric chloride hexahydrate, sodium acetate and polyethylene glycol that meet the requirements by weight and pour them into a container filled with a certain amount of ethylene glycol solution. In a beaker, stir to obtain a mixed solution;

[0029] (b) Sonicating the mixed solution;

[0030] (c) stirring the solution obtained in step b at a certain temperature to fully dissolve;

[0031] (d) Weigh and weigh the 80-mesh bamboo powder that meets the requirements by weight and add it to the solution obtained in step c and stir fully;

[0032] (e) Pour the mixed solution obtained in step d into a stainless steel reaction kettle lined with polytetrafluoroethylene material, put it into a program-controlled box furnace for high temperature reaction for a certain period of time, take out the reactio...

Embodiment 1

[0038]The magnetic bamboo fiber material is prepared from ferrous sulfate tetrahydrate, ferric chloride hexahydrate, 80 mesh natural bamboo powder, polyethylene glycol, sodium acetate and ethylene glycol. Its preparation method is: weigh 0.8 parts by weight of ferrous sulfate tetrahydrate, 1.4 parts of ferric chloride hexahydrate, 0.8 parts of polyethylene glycol and 3.0 parts of sodium acetate in a small beaker, add 60ml of ethylene glycol as a solvent , sonicated for 15 minutes, then placed on a magnetic stirrer at 50°C and stirred to make the solution fully dissolved, then weighed 1.5 parts by weight of 80-mesh natural bamboo powder and soaked it in a beaker of completely dissolved iron salt solution Stir well, pour the resulting mixed solution into a stainless steel reaction kettle lined with polytetrafluoroethylene, and put it into a program-controlled box furnace. The specific heating process is 5°C / min first, and maintain the temperature when it rises to 200°C After rea...

Embodiment 2

[0040] The magnetic bamboo fiber material is prepared from ferrous sulfate tetrahydrate, ferric chloride hexahydrate, 80 mesh natural bamboo powder, polyethylene glycol, sodium acetate and ethylene glycol. Its preparation method is: take by weight 1 part of ferrous sulfate tetrahydrate, 1.6 parts of ferric chloride hexahydrate, 1.0 parts of polyethylene glycol and 3.0 parts of sodium citrate in a small beaker, add 60ml of ethylene glycol as Solvent, ultrasonic treatment for 15min, then placed on a magnetic stirrer at 50°C and stirred to make the solution fully dissolved, then weigh 2.0 parts by weight of 80-mesh natural bamboo powder and soak it in the completely dissolved iron salt solution beaker Stir well in the medium, pour the resulting mixed solution into a stainless steel reaction kettle lined with polytetrafluoroethylene, and put it into a program-controlled box-type furnace. The temperature was reacted for 7 hours. After the temperature of the program-controlled box f...

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Abstract

The invention relates to a magnetic bamboo fiber which is prepared from the following components in parts by weight: 0.8-1.2 parts of ferrous sulfate tetrahydrate, 1.4-1.8 parts of ferric trichloridehexahydrate, 1.5-2.5 parts of 80-mesh natural bamboo powder, 0.8-1.2 parts of polyethylene glycol, 2.5-3.5 parts of sodium acetate and 90-92 parts of ethylene glycol, wherein the natural bamboo powderis prepared by directly firing and crushing the bamboo fiber. Aiming at the defects of traditional adsorption materials and methods for treating wastewater, the magnetic bamboo fiber fully utilizes the unique advantages of agricultural and sideline products and magnetic adsorbents, and the material has the characteristics of high stability, low preparation cost, rich and renewable preparation rawmaterials, simple and convenient preparation method and recyclability, and is mainly characterized in that the main material is bamboo fiber, which is prepared from bamboos, the raw material is rich,easy to obtain, low in price and capable of being regenerated. The preparation method is simple, convenient and low in preparation cost; and the material has good magnetic conductivity and can be recycled due to the magnetic property.

Description

technical field [0001] The invention relates to the field of new materials for water pollution treatment and restoration, in particular to a magnetic bamboo fiber and a preparation process thereof. Background technique [0002] The radioactive elements contained in radioactive wastewater can only reach a natural level with low activity through natural decay, and it has the characteristics of high biological toxicity, thermal stability, and easy migration. For the treatment of radioactive wastewater at home and abroad, the current methods mainly include the following: ion exchange method, evaporation concentration method, membrane treatment method, adsorption method, and multiple technology combined treatment methods. [0003] At present, the adsorption method is the most widely used in the treatment of radioactive wastewater. It mainly uses porous solid materials to be put into the wastewater, and the nuclides in the wastewater are adsorbed on the solid materials through the...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F1/48
CPCB01J20/24B01J20/28009B01J20/3085C02F1/286C02F1/488B01J2220/4825C02F2101/006
Inventor 于涛杨俊汪泽洋廖万达
Owner EAST CHINA UNIV OF TECH