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Preparation method of TiO2@Mofs modified glass fiber film

A glass fiber membrane and modification technology, which is applied in separation methods, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of low efficiency of floating oil separation

Inactive Publication Date: 2019-05-10
江苏中丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glass fiber membrane not only retains many advantages of glass fiber such as chemical corrosion resistance and high temperature resistance, but the separation efficiency of floating oil is low, so it is necessary to modify the glass fiber membrane to improve the separation efficiency of floating oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0028] α1. TiO 2 ·nH 2 The molar ratio of O and inorganic base is 0.4, add an appropriate amount of water, grind, then heat up to 880 °C in a muffle furnace, keep it for 2 hours, and slowly cool to room temperature to obtain the mesophase K 6 Ti 2 o 7 ;

[0029] α2, then the dispersed intermediate product K 6 Ti 2 o 7 Put it into a small amount of water, let it stand for 1 day, then put the obtained hydrated product into an appropriate amount of water for stirring, continuously add 0.5mol / L dilute acid, and control the pH value of the solution to 2.0 with a pH meter;

[0030] α3. After the system stabilizes and reaches equilibrium, the intermediate product is filtered out with suction, washed with water to neutrality and dried to constant weight to obtain the product titanic acid, and then sintered to 1000°C at a speed of 10°C min-1 in a muffle furnace, and kept warm 2h, slow cooling to room temperature, to obtain TiO 2 particles;

[0031] α4. TiO 2 The particles are...

Embodiment example 2

[0039] β1, the TiO 2 ·nH 2 The molar ratio of O and the inorganic base is 0.6, add an appropriate amount of water, grind, then heat up to 900°C in a muffle furnace, keep it warm for 2 hours, and slowly cool to room temperature to obtain the mesophase K 6 Ti 2 o 7 ;

[0040] β2, then the dispersed intermediate product K 6 Ti 2 o 7 Put it into a small amount of water, let it stand for 2 days, then put the obtained hydrated product into an appropriate amount of water for stirring, continuously add 0.5mol / L dilute acid, and use a pH meter to control the pH value of the solution to 3.0;

[0041] β3. After the system stabilizes and reaches equilibrium, the intermediate product is filtered out with suction, washed with water to neutrality and dried to constant weight to obtain the product titanic acid, and then sintered to 1200°C at a speed of 10°C min-1 in a muffle furnace, and kept warm 2h, slow cooling to room temperature, to obtain TiO 2 particles;

[0042] β4, the TiO 2 ...

Embodiment example 3

[0050] γ1, TiO 2 ·nH 2 The molar ratio of O and the inorganic base is 0.5, add an appropriate amount of water, grind, then heat up to 890 ° C in a muffle furnace, keep it for 2 hours, and slowly cool to room temperature to obtain the mesophase K 6 Ti 2 o 7 ;

[0051] γ2, then the dispersed intermediate product K 6 Ti 2 o 7 Put it into a small amount of water and let it stand for 1.5 days, then put the obtained hydrated product into an appropriate amount of water for stirring, continuously add 0.5 mol / L dilute acid, and use a pH meter to control the pH of the solution to 2.5;

[0052] γ3. After the system stabilizes and reaches equilibrium, the intermediate product is filtered out with suction, washed with water until neutral and dried to constant weight to obtain the product titanic acid, and then sintered to 1100°C at a speed of 10°C min-1 in a muffle furnace, and kept warm 2h, slow cooling to room temperature, to obtain TiO 2 particles;

[0053] γ4, the TiO 2 The p...

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PUM

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Abstract

The invention discloses a preparation method of TiO2@Mofs modified glass fiber film, comprising the steps of adding epichlorohydrin and strong sodium oxide solution into a beaker, subjecting glass fiber film to reaction in the solution at 20-25 DEG C for 10-12 h, and flushing many times with deionized water / ethanol to remove impurities on the surface of the film; dissolving TiO2@Mofs particles inmethanol solution, adding the film into the TiO2@Mofs solution, allowing to react at 70-90 DEG C for 20-24 h, flushing many times with deionized water / ethanol to remove impurities on the surface of the modified glass fiber film, and drying the modified glass fiber film in a blowing drying box at 40-50 DEG C for 12-24 h. The TiO2@Mofs modified glass fiber film retains the advantages of glass fiber,such a chemical corrosion tolerance and high temperature resistance and can effectively remove oil in oil-bearing wastewater.

Description

technical field [0001] The invention relates to the technical field of oily wastewater treatment, in particular to a TiO 2 Preparation method of @Mofs modified glass fiber membrane. Background technique [0002] With the continuous development of industry, petrochemical industry, metallurgical industry, pharmaceutical industry, food industry, domestic sewage and other occasions discharge a large amount of oily wastewater every day. In addition, most of the oily wastewater has complex components, including many solid particles, lubricants, salts, demulsifiers, defoamers, and various organic solvents and other toxic substances. Membrane separation technology is a method to realize the separation of oil and water by using the sieving effect of the separation membrane and the different affinity of the separation membrane for water and oil. Glass fiber membrane not only retains many advantages of glass fiber such as chemical resistance and high temperature resistance, but the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F1/40
Inventor 汤立芹
Owner 江苏中丽新材料有限公司
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