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Ceramic based heat storage material using copper slag as raw material and preparation method thereof

A heat storage material, ceramic-based technology, applied in the production of ceramic materials, clay products, other household appliances, etc., can solve the problems of lack of copper slag resources and make full use of the advantages, to solve the accumulation of land occupation and pollution of the environment, to achieve comprehensive recovery With the effect of utilization, high refractoriness

Inactive Publication Date: 2017-10-20
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current production technology plans for copper slag are usually used as fillers for cement, glass-ceramic or other products, without starting from the composition and structure of copper slag, and lack of full use of the advantages of copper slag resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A ceramic-based heat storage material using copper slag as a raw material and a preparation method thereof. The preparation method described in this embodiment is:

[0043] The first step is to mix 40~50wt% copper slag, 30~40wt% powdered quartz, 1~5wt% copper sulfate pentahydrate, 0.1~1wt% lanthanum oxide powder and 10~20wt% citric acid monohydrate , Grind at room temperature for 0.5~2 hours to obtain the abrasive.

[0044] Second step, the copper nitrate trihydrate of 20~30wt%, the potassium chloride of 40~50wt%, the aluminum powder of 10~20wt%, the manganese powder of 10~20wt% and the copper powder of 10~20wt% mix evenly, Compression molding under the condition of 50~100MPa, heat treatment in nitrogen atmosphere and 400~600°C for 0.5~1.5 hours, pulverization, ball milling, drying at 90°C for 12 hours, sieving to obtain sieved material with a particle size of 0.088~1mm A and sieved material B with particle size less than 0.088mm.

[0045] The 3rd step, the described...

Embodiment 2

[0048] A ceramic-based heat storage material using copper slag as a raw material and a preparation method thereof. The preparation method described in this embodiment is:

[0049] The first step is to mix 50~60wt% copper slag, 20~30wt% fused silica, 5~10wt% copper nitrate trihydrate, 1~5wt% zirconium dioxide powder and 10~20wt% anhydrous oxalic acid , Grind at room temperature for 0.5~2 hours to obtain the abrasive.

[0050] In the second step, 30~40wt% copper sulfate pentahydrate, 30~40wt% sodium chloride, 10~20wt% aluminum powder, 10~20wt% manganese powder and 10~20wt% copper powder are mixed evenly, Compression molding under the condition of 50~100MPa, heat treatment in argon atmosphere and 400~600℃ for 1.5~3 hours, pulverization, ball milling, drying at 90℃ for 12 hours, sieving to obtain sieves with a particle size of 0.088~1mm Material A and screened material B with particle size less than 0.088mm.

[0051] The 3rd step, the described grinding material of 30~40wt%, th...

Embodiment 3

[0054] A ceramic-based heat storage material using copper slag as a raw material and a preparation method thereof. The preparation method described in this embodiment is:

[0055] The first step is to mix 40~50wt% copper slag, 20~30wt% fused silica, 1~5wt% copper nitrate trihydrate, 5~10wt% zirconium dioxide powder and 20~30wt% anhydrous oxalic acid , Grind at room temperature for 0.5~2 hours to obtain the abrasive.

[0056] In the second step, 20~30wt% copper sulfate pentahydrate, 30~40wt% potassium chloride, 20~30wt% aluminum powder, 10~20wt% manganese powder and 10~20wt% copper powder are mixed evenly, Compressed under the condition of 50~100MPa, heat treated in nitrogen atmosphere and 400~600℃ for 2~3 hours, crushed, ball milled, dried at 90℃ for 12 hours, sieved to obtain sieved material with a particle size of 0.088~1mm A and sieved material B with particle size less than 0.088mm.

[0057] The 3rd step, the described grinding material of 40~50wt%, the described screen...

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Abstract

The invention relates to a ceramic based heat storage material using copper slag as a raw material and a preparation method thereof. The preparation method is as follows: mixing a copper slag and silicon-containing material, a copper salt, a stabilizer and a complexing agent and grinding to obtain a ground material; mixing the copper salt, an inorganic salt, copper powder, manganese powder and aluminum powder, pressing for molding, thermally treating in a neutral atmosphere at 400-600 DEG C, ball-milling, drying and sieving to obtain a sieved material A with the size of 0.088-1mm and a sieved material B with the size less than 0.088mm; mixing 0-50wt% of the ground material, 10-30wt% the sieved material A, 20-40wt% of the sieved material B and 5-10wt% of the inorganic salt, pressing for molding, thermally treating in the neutral atmosphere at 400 to 600 DEG C to obtain the ceramic based heat storage material using the copper slag as the raw material. The preparation method has the advantages of wide raw material sources, simple process and low production cost, and the ceramic based heat storage material using the copper slag as the raw material has high heat storage density, large thermal conductivity, high compressive strength and high thermal shock stability.

Description

technical field [0001] The invention belongs to the technical field of ceramic-based heat storage materials. In particular, it relates to a ceramic-based heat storage material using copper slag as a raw material and a preparation method thereof. Background technique [0002] Heat storage material is a new type of functional material that is widely used at present. It is mainly used in the fields of industrial waste / waste heat recovery and utilization, comprehensive development of solar energy, and high temperature energy saving. It mainly includes sensible heat storage materials and latent heat storage materials. The heat storage material belongs to the sensible heat storage material, and the refractory material is used as the main body to absorb heat. Since the heat absorption only depends on the change of the sensible heat capacity of the refractory material, this heat storage material has the advantages of large volume, high cost, large thermal inertia and output Disadv...

Claims

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Application Information

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IPC IPC(8): C04B33/138C04B33/13
CPCC04B33/1305C04B33/131C04B33/138C04B2235/3201C04B2235/3227C04B2235/3244C04B2235/3281C04B2235/3418C04B2235/40C04B2235/402C04B2235/407C04B2235/658C04B2235/96C04B2235/9607Y02P40/60
Inventor 王周福全正煌刘浩王玺堂马妍
Owner WUHAN UNIV OF SCI & TECH
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