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Artificial zeolite using shells and construction waste as raw materials and preparation method thereof

A construction waste, artificial zeolite technology, applied in chemical instruments and methods, crystalline aluminosilicate zeolite, other chemical processes, etc., can solve the problem that natural zeolite reserves or adsorption performance cannot reach industrial applications, and natural zeolite is slow and difficult to generate. Large-scale production and other problems, to achieve the effect of improving the utilization value, good expansion rate and adsorption performance, and reducing the burden

Active Publication Date: 2018-09-28
中科亿诚(珠海)环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the natural conditions in our country, natural zeolite has slow production speed, insufficient purity, poor performance and limited quantity. Therefore, natural zeolite cannot meet the requirements of industrial applications in terms of reserves and adsorption performance.
At present, industrial synthetic zeolites on the market mainly use industrial raw materials such as Al(OH)3, which are expensive, complicated and difficult to produce on a large scale.

Method used

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  • Artificial zeolite using shells and construction waste as raw materials and preparation method thereof

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Effect test

Embodiment 1

[0029] An artificial zeolite using shells and construction waste as raw materials, which includes the following raw materials in terms of mass percentages: 10% silicon dioxide, 35% aluminum oxide, 5% shells, 12% construction waste, 18% clay, bonding Agent 20%. Wherein, the adhesive is made of water glass and sodium carboxymethyl cellulose in a ratio of 30%:70%.

[0030] The preparation method of the above-mentioned artificial zeolite with shells and construction waste as raw material comprises the following steps:

[0031] 1) Grinding and grinding shells and construction waste respectively, grinding to 300 mesh, mixing with silica, alumina and clay, then adding adhesive and stirring at 85°C for 3 hours;

[0032] 2) Add foaming agent sodium bicarbonate to the mixture prepared in step 1) in a ratio of 0.5ml / g, mix uniformly in a high-speed mixer, and perform foaming treatment. The stirring and foaming temperature is 90°C, and the foaming time is 1.5h;

[0033] 3) Transport th...

Embodiment 2

[0039] An artificial zeolite using shells and construction waste as raw materials, which includes the following raw materials in terms of mass percentages: 20% silicon dioxide, 25% aluminum oxide, 8% shells, 16% construction waste, 15% clay, bonding Agent 16%. Wherein, the adhesive is made of water glass and sodium carboxymethyl cellulose in a ratio of 30%:70%.

[0040] The preparation method of the above-mentioned artificial zeolite with shells and construction waste as raw material comprises the following steps:

[0041] 1) Grinding and grinding shells and construction waste respectively, grinding to 400 mesh, mixing with silica, alumina and clay, then adding adhesive and stirring at 100°C for 2 hours;

[0042] 2) Add foaming agent sodium bicarbonate in the ratio of 0.8ml / g to the mixture prepared in step 1), mix evenly in a high-speed mixer, and perform foaming treatment. The stirring and foaming temperature is 45°C, and the foaming time is for 2h;

[0043]3) Transport t...

Embodiment 3

[0049] An artificial zeolite with shells and construction waste as raw materials, which includes the following raw materials in terms of mass percentages: 5% silicon dioxide, 25% aluminum oxide, 10% shells, 25% construction waste, 30% clay, bonding Agent 15%. Wherein, the adhesive is made of water glass and sodium carboxymethyl cellulose in a ratio of 30%:70%.

[0050] The preparation method of the above-mentioned artificial zeolite with shells and construction waste as raw material comprises the following steps:

[0051] 1) Grinding and grinding shells and construction waste respectively, grinding to 200 mesh, mixing with silica, alumina and clay, then adding adhesive and stirring at 60°C for 5 hours;

[0052] 2) Add foaming agent sodium bicarbonate in the ratio of 1ml / g to the mixture prepared in step 1), mix uniformly in a high-speed mixer, and perform foaming treatment. The stirring and foaming temperature is 105 ° C, and the foaming time is 0.5h;

[0053] 3) Transport ...

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Abstract

The invention discloses an artificial zeolite using shells and construction waste as raw materials and a preparation method thereof and belongs to the technical field of absorbent material preparation. The artificial zeolite is prepared from, by mass, the following raw materials: 5%-20% of silicon dioxide, 25%-45% of aluminum trioxide, 1%-10% of shells, 10%-25% of construction waste, 15%-30% of clay and 12%-25% of adhesive. The artificial zeolite uses the shells and the construction waste as the raw materials, the adaptability of the raw materials is improved, the utilization value of the construction waste is improved, waste is turned into wealth, and the property of the artificial zeolite is extended. The preparation method is simple in process, easy to operate and low in production cost.

Description

technical field [0001] The invention relates to the technical field of adsorption material preparation, in particular to an artificial zeolite using shells and construction waste as raw materials and a preparation method thereof. Background technique [0002] At present, the adsorption method has been widely used in industrial water treatment, gas adsorption and other fields. The main adsorbents are activated carbon, resin and molecular sieve. Among them, the cost of activated carbon is high, the regeneration process is complicated, the cost of resin is high, and the research on the adsorption mechanism is not perfect, so they are not suitable for large-scale industrial application. Because zeolite molecular sieve has a special microporous structure and selective adsorption, it is widely used in catalysis, adsorption and ion exchange processes, and is also used in environmental treatment, and its demand is increasing year by year. Under the natural conditions in our country...

Claims

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Application Information

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IPC IPC(8): C01B39/02B01J20/18B01J20/30C02F1/28C02F3/34
CPCB01J20/18C01B39/02C02F1/281C02F3/34
Inventor 张友良
Owner 中科亿诚(珠海)环保技术有限公司
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