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Composite fiber magnetic material for treating chemical effluent water and preparation method thereof

A composite fiber and magnetic material technology, applied in chemical instruments and methods, alkali metal compounds, water/sewage treatment, etc., can solve the problems of poor pollutant treatment effect, poor adsorption effect, and restrictions on the application of magnetic composite materials, and achieve It is convenient for recovery, separation and reuse, better adsorption effect and uniform diameter distribution

Inactive Publication Date: 2021-01-08
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that the magnetic composite materials used for sewage treatment in the prior art have problems such as poor adsorption effect and poor treatment effect on pollutants, which restricts the application of magnetic composite materials in sewage treatment.

Method used

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  • Composite fiber magnetic material for treating chemical effluent water and preparation method thereof
  • Composite fiber magnetic material for treating chemical effluent water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] a. Co(NO 3 ) 3 9H 2 O, Fe(NO 3 ) 2 ·6H 2 O is dissolved in absolute ethanol to make a mixed solution A, and then the cotton fiber is immersed in the mixed solution A, and the ultrasonic dispersion is uniform, and the ultrasonic power density of the ultrasonic dispersion is 0.8W / cm 2 , the time is 25min, and then transferred to the polytetrafluoroethylene reactor, heated for reaction, the reaction temperature is 190°C, the time is 5h, after the reaction is completed, filter and calcined at 500°C for 6.5h to obtain CoFe 2 o 4 fiber materials; where, Co(NO 3 ) 3 9H 2 O 1, Fe(NO 3 ) 2 ·6H 2 The molar ratio of O is 1:2;

[0031]b, 2-mercaptobenzothiazole and inorganic alkali sodium hydroxide are dissolved in solvent glycerin to make mixed solution B, and then the CoFe prepared in step a 2 o 4 The fiber material is immersed in the mixed solution B to react. The reaction temperature is 93°C and the time is 4h. After the reaction, the fiber is taken out, washed wi...

Embodiment 2

[0034] a. Co(NO 3 ) 3 9H 2 O, Fe(NO 3 ) 2 ·6H 2 O was dissolved in absolute ethanol to make a mixed solution A, and then the cotton fiber was immersed in the mixed solution A, and the ultrasonic dispersion was uniform, and the ultrasonic power density of the ultrasonic dispersion was 0.6W / cm 2 , the time is 28min, and then transferred to the polytetrafluoroethylene reactor, heated for reaction, the reaction temperature is 185°C, the time is 5.5h, after the reaction is completed, filter, dry, and calcined at 500°C for 7h to obtain CoFe 2 o 4 fiber materials; where, Co(NO 3 ) 3 9H 2 O 1, Fe(NO 3 ) 2 ·6H 2 The molar ratio of O is 1:2;

[0035] B, 2-mercaptobenzothiazole and inorganic base potassium hydroxide are dissolved in solvent glycerol to make mixed solution B, and then the CoFe prepared in step a 2 o 4 The fiber material is immersed in the mixed solution B to react. The reaction temperature is 91°C and the time is 3.5h. After the reaction, the fiber is taken ...

Embodiment 3

[0037] a. Co(NO 3 ) 3 9H 2 O, Fe(NO 3 ) 2 ·6H 2 O was dissolved in absolute ethanol to make a mixed solution A, and then the cotton fiber was immersed in the mixed solution A, and the ultrasonic dispersion was uniform, and the ultrasonic power density of the ultrasonic dispersion was 0.5W / cm 2 , the time is 30min, and then transferred to the polytetrafluoroethylene reactor, heated for reaction, the reaction temperature is 180 ℃, the time is 6h, after the reaction is completed, it is filtered and calcined at 500 ℃ for 8h to obtain CoFe 2 o 4 fiber materials; where, Co(NO 3 ) 3 9H 2 O 1, Fe(NO 3 ) 2 ·6H 2 The molar ratio of O is 1:2;

[0038] b, 2-mercaptobenzothiazole and inorganic alkali sodium hydroxide are dissolved in solvent glycerin to make mixed solution B, and then the CoFe prepared in step a 2 o 4 The fiber material is immersed in the mixed solution B to react. The reaction temperature is 90°C and the time is 4h. After the reaction, the fiber is taken out...

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Abstract

The invention discloses a composite fiber magnetic material for treating chemical effluent water and a preparation method of the composite fiber magnetic material. The composite fiber magnetic material is prepared through the following steps: a, adding cotton fibers into an absolute ethyl alcohol solution of Co(NO3)3.9H2O and of Fe(NO3)2.6H2O, and carrying out a reaction to obtain a CoFe2O4 fibermaterial; and b, adding the fiber material into a glycerol solution of 2-mercaptobenzothiazole and inorganic base for a reaction, and carrying out cleaning and drying to obtain a 2-mercaptobenzothiazole modified CoFe2O4 fiber material, namely the composite fiber magnetic material for treating chemical effluent water. The method has the beneficial effects that the obtained 2-mercaptobenzothiazole modified CoFe2O4 fiber material utilizes the excellent complexing function of sulfydryl groups, so adsorption effect on pollutants such as heavy metal ions in water is better; and the diameter distribution of the fiber material is uniform, the fiber material is convenient to recycle, separate and reuse, and the fiber material can be widely applied to sewage treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to the preparation of fiber magnetic materials, in particular to a composite fiber magnetic material and a preparation method for treating chemical industry wastewater. Background technique [0002] Magnetic materials are widely used in production, life and scientific research due to their special properties. Because magnetic nanomaterials can be attracted by an external magnetic field, magnetic nanoparticles are widely used in magnetic fluids, catalysis, biomedical technology, nuclear magnetic resonance imaging technology, data storage, and sewage treatment. Clay is an important mineral raw material widely distributed in rocks and soils all over the world, and is readily available and cheap. It has good physical adsorption, surface chemical activity and ability to exchange with other cations, so it is widely used in the manufacture of ceramic products, refractory materials, buildin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/28C02F1/28B01J20/30C02F101/20
CPCB01J20/06B01J20/28009C02F1/281C02F2101/20
Inventor 陈庆司文彬白涛李钧
Owner CHENDU NEW KELI CHEM SCI CO LTD