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Method for preparing functional ceramic engineering material combustion-supporting catalyst from coal solid waste or bauxite solid waste

A technology of combustion-supporting catalysts and functional ceramics, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of unstable physical and chemical properties, affecting the reliability of engineering materials and Applicability and other issues, to achieve the effect of improving industrial preparation capacity, increasing strength, and reducing sintering temperature

Active Publication Date: 2020-07-14
朔州西廊煤炭科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the sintering temperature and the addition of additives, some carbon atoms between crystal bonds are missing, resulting in unstable physical and chemical properties, which affects its reliability and applicability as an engineering material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing a combustion-supporting catalyst for functional ceramic engineering materials by utilizing coal solid waste or bauxite solid waste, comprising the following steps:

[0032] Step 1: Select Beiyan Coal Mine 4 in Pingshuo Mining Area of ​​Ningwu Coalfield -2 For the gangue in the coal seam, 12 parts of kaolinite with high structural strength are selected, with a total weight of 120kg and a volume of 100mmX100mmX100mm~300mmX200mmX10mm.

[0033] Step 2: The 12 samples of the 12 raw materials in step 1 are roasted on the top of the open hearth furnace with 2 layers of shelves, and enter the open hearth furnace for 2 hours to raise the temperature to 850°C;

[0034] Step 3: Raise the temperature from 850°C to 950°C at a rate of 300°C / h, roast for 4 hours, and cool down naturally;

[0035] Step 4: Knock off or break the sample, and find that there are unburned impurities in 8 samples, and repeat steps 1 to 3;

[0036]Step 5: Use jaw crusher, ball mill, ...

Embodiment 2

[0042] A method for preparing a combustion-supporting catalyst for functional ceramic engineering materials by utilizing coal solid waste or bauxite solid waste, comprising the following steps:

[0043] Step 1: Select gangue coal and coal floor produced by Lanhua Shuozhou Company, Huadian Shanxi Energy Company, and China Coal Pingshuo Group Co., Ltd. The total weight of 20 parts of Mushi is 150kg, and the volume is 200mmX200mmX200mm.

[0044] Step 2: 20 samples of the 20 raw materials in step 1 are roasted in the open hearth furnace with 2 layers of racks on the top layer, and enter the open hearth furnace for 2 hours to raise the temperature to 850°C;

[0045] Step 3: Raise the temperature from 850°C to 950°C at a rate of 300°C / h, roast for 5 hours, and cool down naturally;

[0046] Step 4: Knock off or break the sample, find that 7 samples have unburned impurities, repeat steps 1 to 3;

[0047] Step 5: Use jaw crusher, ball mill, Raymond mill, crush 20 samples to 100 mesh,...

Embodiment 3

[0053] A method for preparing a combustion-supporting catalyst for functional ceramic engineering materials by utilizing coal solid waste or bauxite solid waste, comprising the following steps:

[0054] Step 1: Select the gangue and coal floor of the coal seam produced by Lanhua Shuozhou Company, Huadian Shanxi Energy Company, and China Coal Pingshuo Group Co., Ltd. 15 parts of larger kaolinite and boehmite have a total weight of 140kg and a volume of 300mmX200mmX10mm.

[0055] Step 2: Roast 15 samples of the raw material in step 1 on top of an open hearth furnace with 2 layers of shelves, and enter the open hearth furnace for 2 hours to raise the temperature to 850°C;

[0056] Step 3: Raise the temperature from 850°C to 950°C at a rate of 300°C / h, roast for 5 hours, and cool down naturally;

[0057] Step 4: Knock off or break the sample, and find that there are unburned impurities in 8 samples, and repeat steps 1 to 3;

[0058] Step 5: Use jaw crusher, ball mill, Raymond mi...

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Abstract

The invention relates to the technical field of engineering materials, in particular to a method for preparing a functional ceramic engineering material combustion-supporting catalyst from coal solidwaste or bauxite solid waste. The method comprises the following steps: 1, selecting raw materials; 2, stacking the sample space, feeding into a flat furnace, and heating to 850 DEG C for 2 hours; 3,heating from 850 DEG C to 950 DEG C at a speed of 300 DEG C / h, roasting for 4-5 hours, and naturally cooling; 4, crushing the sample; 5, crushing the crushed sample to 100 meshes; 6, measuring the lithium content; 7, directly and finely grinding the batch of raw materials of which the lithium content is greater than 0.1% in the sample to 325-1000 meshes; 8, adding TiO2 powder, and carrying out ball milling to obtain powder with the particle size of 10-100 nanometers; and 9, calcining the prepared powder at 1100 DEG C for 4 hours to prepare the required combustion-supporting catalyst. When thecombustion-supporting catalyst rich in lithium, gallium, vanadium and titanium rare elements prepared by the method is used for preparing a functional ceramic engineering material, the sintering temperature is remarkably reduced, the strength of the ceramic engineering material is improved, and the density of the engineering material is reduced.

Description

technical field [0001] The invention relates to the technical field of engineering materials, in particular to a method for preparing a combustion-supporting catalyst for functional ceramic engineering materials by utilizing coal solid waste or bauxite solid waste. Background technique [0002] Functional ceramic engineering materials, as one of the three major metal, plastic, and ceramic engineering materials in the 21st century, have become high-strength, high-hardness, high-elastic modulus, high-temperature resistant, wear-resistant, and heat-resistant materials since they appeared in the 1960s. It has important and extensive applications in national economy and national defense construction. With the development of modern high-tech, the application of functional ceramic engineering materials is developing towards refinement, multi-function, intelligence, integration, high performance, high reliability and composite structure. Therefore, solving various basic scientific ...

Claims

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Application Information

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IPC IPC(8): C04B35/64C04B35/563B01J23/22
CPCB01J23/22C04B35/563C04B35/64
Inventor 曹雪瑞段晓飞王喜贵李茂运王舜王太钢
Owner 朔州西廊煤炭科技有限公司
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