Preparation and application of high-graphitization fine ash coated square ZnSnO3 composite material

A composite material and high-graphite technology, applied in the direction of tin compounds, fibrous fillers, chemical instruments and methods, etc., can solve environmental pollution and other problems, and achieve the effect of improving MA performance, good impedance matching performance, and strong dielectric loss capability

Pending Publication Date: 2022-04-19
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fine ash is a new type of solid waste and by-product produced in the process of coal gasification. At present, only a small part of fine ash is used, and the rest is simply dumped, causing environmental pollution

Method used

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  • Preparation and application of high-graphitization fine ash coated square ZnSnO3 composite material
  • Preparation and application of high-graphitization fine ash coated square ZnSnO3 composite material
  • Preparation and application of high-graphitization fine ash coated square ZnSnO3 composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Highly graphitized fine ash coated square-like ZnSnO proposed by the present invention 3 The method steps of composite material preparation are as follows:

[0036] S1: Preparation of fine ash

[0037] The fine ash is prepared by using the gasification fine slag of pulverized coal as a raw material by a three-step acidification method; the specific steps are as follows:

[0038] S11: Using 50g of coal powder gasification fine slag as raw material, mix it with 500ml of hydrochloric acid solution (5mol / L) in a container, stir and filter;

[0039] S12: washing the solid obtained by filtering in S11 until neutral, and drying it;

[0040] S13: Mix the dried solid in S12 with 500ml of hydrofluoric acid solution (40%, wt%) in a container, stir, and filter, and wash the filtered solid with water until neutral, and dry it;

[0041] S14: Mix the dried solid in S13 with 500 mL hydrochloric acid solution (1.19 g / mL) in a container, stir, filter, wash the filtered solid with wate...

Embodiment 2

[0049] Highly graphitized fine ash coated square-like ZnSnO proposed by the present invention 3 The method steps of composite material preparation are as follows:

[0050] S1: Preparation of fine ash

[0051] The fine ash is prepared by using the gasification fine slag of pulverized coal as a raw material by a three-step acidification method; the specific steps are as follows:

[0052] S11: Using 50g of coal powder gasification fine slag as raw material, mix it with 500ml of hydrochloric acid solution (5mol / L) in a container, stir and filter;

[0053] S12: washing the solid obtained by filtering in S11 until neutral, and drying it;

[0054] S13: Mix the dried solid in S12 with 500ml of hydrofluoric acid solution (40%, wt%) in a container, stir, and filter, and wash the filtered solid with water until neutral, and dry it;

[0055] S14: Mix the dried solid in S13 with 500 mL hydrochloric acid solution (1.19 g / mL) in a container, stir, filter, wash the filtered solid with water,...

Embodiment 3

[0063] Highly graphitized fine ash coated square-like ZnSnO proposed by the present invention 3 The method steps of composite material preparation are as follows:

[0064] S1: Preparation of fine ash

[0065] The fine ash is prepared by using the gasification fine slag of pulverized coal as a raw material by a three-step acidification method; the specific steps are as follows:

[0066] S11: Using 50g of coal powder gasification fine slag as raw material, mix it with 500ml of hydrochloric acid solution (5mol / L) in a container, stir and filter;

[0067] S12: washing the solid obtained by filtering in S11 until neutral, and drying it;

[0068] S13: Mix the dried solid in S12 with 500ml of hydrofluoric acid solution (40%, wt%) in a container, stir, and filter, and wash the filtered solid with water until neutral, and dry it;

[0069] S14: Mix the dried solid in S13 with 500 mL hydrochloric acid solution (1.19 g / mL) in a container, stir, filter, wash the filtered solid with wate...

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Abstract

The invention discloses preparation and application of a high-graphitization fine ash coated square ZnSnO3 composite material. A preparation method of the composite material comprises the following steps: S1, preparation of fine ash: preparing the fine ash by taking gasified fine slag of pulverized coal as a raw material and adopting a three-step acidification method; s2, synthesis of a ZnSnO3 and fine ash composite material: adding the fine ash prepared in the S1 into a container containing distilled water, performing ultrasonic dispersion for 20-40 minutes, respectively adding SnCl4. 5H2O and (Zn (NO3) 2.6 H2O with equal molar mass, uniformly stirring, dropwise adding ammonia water into a mixed solution, magnetically stirring until the pH value of the mixed solution is 12, and performing ultrasonic dispersion for 20-40 minutes to obtain the ZnSnO3 and fine ash composite material. The mixed solution is subjected to a heating reaction and then washed with deionized water and ethyl alcohol respectively, an obtained product is washed 2-4 times, finally, the washed product is dried, and the ZnSnO3 and fine ash composite material is obtained. The prepared composite material has good impedance matching performance, the dielectric property and the conductivity of the material are adjusted, and the MA performance of the material is improved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to highly graphitized fine ash coated square-like ZnSnO 3 Preparation and application of composite materials. Background technique [0002] Fine ash is a new type of solid waste and by-product produced in the process of coal gasification. At present, only a small part of fine ash is used, and the rest is simply dumped, causing environmental pollution. In order to realize the "zero emission" of coal gasification technology, it is necessary to control and develop the environmentally safe use of by-products. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a highly graphitized fine ash-coated block-like ZnSnO 3 The preparation and application of composite materials, the prepared composite materials have good impedance matching performance, the dielectric properties and electrical con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
CPCH05K9/0081C09C1/04C09C3/063C01P2004/38C01P2002/82C01P2004/03C01P2002/85C01P2006/40C01P2006/42C01G19/00C01P2004/80C01P2002/72C01P2004/04
Inventor 张元春李寒旭高圣涛武成利
Owner ANHUI UNIV OF SCI & TECH
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