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Treatment agent for adsorbing high-end cast waste gas, and preparation method thereof

A technology for waste gas treatment and casting, applied in gas treatment, separation methods, chemical instruments and methods, etc., can solve problems such as harmful to human health, pollute the environment, affect air quality, etc., and achieve the effect of benefiting human health and killing bacteria

Inactive Publication Date: 2017-11-24
NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Exhaust gases such as carbon monoxide, hydrogen sulfide and organic gases are emitted during the production of high-end castings, seriously polluting the environment and affecting air quality
Moreover, it is harmful to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A treatment agent for absorbing high-end casting waste gas, its ingredients in parts by weight: 33 parts of modified activated carbon, 29 parts of polyvinylpyrrolidone, 23 parts of lye, 23 parts of formaldehyde solution, 17 parts of melamine, 16 parts of polyvinyl alcohol, 11 parts of modified diatomite, 10 parts of seaweed mud, 5 parts of calcium hydroxide and appropriate amount of water.

[0021] Preferably, a high-end casting exhaust gas treatment agent for adsorption, its preparation method comprises the following steps:

[0022] a. Dissolve polyvinyl alcohol in water at 78°C, then cool to room temperature, adjust the pH of the solution to 2.8, then add formaldehyde solution, adjust the pH to 6.2, add melamine, react at 68°C for 30 minutes, and record the resulting mixed solution as As a mixed solution A;

[0023] b. Grinding the modified activated carbon, modified diatomaceous earth, polyvinylpyrrolidone, seaweed mud and calcium hydroxide respectively, and placing...

Embodiment 2

[0028] A treatment agent for absorbing high-end casting waste gas, its ingredients in parts by weight: 35 parts of modified activated carbon, 27 parts of polyvinylpyrrolidone, 25 parts of lye, 21 parts of formaldehyde solution, 19 parts of melamine, 14 parts of polyvinyl alcohol, 13 parts of modified diatomite, 8 parts of seaweed mud, 7 parts of calcium hydroxide and appropriate amount of water.

[0029] Preferably, a high-end casting exhaust gas treatment agent for adsorption, its preparation method comprises the following steps:

[0030] a. Dissolve polyvinyl alcohol in water at 84°C, then cool to room temperature, adjust the pH of the solution to 3.4, then add formaldehyde solution, adjust the pH to 6.7, add melamine, react at 74°C for 34min, and record the resulting mixed solution as As a mixed solution A;

[0031] b. Grinding the modified activated carbon, modified diatomaceous earth, polyvinylpyrrolidone, seaweed mud and calcium hydroxide respectively, and placing them ...

Embodiment 3

[0036] A treatment agent for absorbing high-end casting waste gas, its ingredients in parts by weight: 37 parts of modified activated carbon, 34 parts of polyvinylpyrrolidone, 26 parts of lye, 26 parts of formaldehyde solution, 21 parts of melamine, 20 parts of polyvinyl alcohol, 15 parts of modified diatomite, 13 parts of seaweed mud, 9 parts of calcium hydroxide and appropriate amount of water.

[0037] Preferably, a high-end casting exhaust gas treatment agent for adsorption, its preparation method comprises the following steps:

[0038] a. Dissolve polyvinyl alcohol in water at 90°C, then cool to room temperature, adjust the pH of the solution to 3.9, then add formaldehyde solution, adjust the pH to 7.3, add melamine, react at 79°C for 38 minutes, and record the resulting mixed solution as As a mixed solution A;

[0039] b. Grinding the modified activated carbon, modified diatomaceous earth, polyvinylpyrrolidone, seaweed mud and calcium hydroxide respectively, and placing...

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Abstract

The invention relates to the technical field of industrial waste gas treatment, in particular to a treatment agent for adsorbing high-end cast waste gas, and a preparation method thereof. The treatment agent comprises the following components in parts by weight: modified activated carbon, polyvinylpyrrolidone, alkaline liquid, a formaldehyde solution, melamine, polyvinyl alcohol, modified diatomite, algae mud, calcium hydroxide and a proper amount of water. The treatment agent for adsorbing the high-end cast waste gas is prepared by taking the modified diatomite, the algae mud and the calcium hydroxide as the raw materials, the pore diameter of the modified activated carbon and the pore diameter of the modified diatomite are increased, the number of micropores is increased, the pore diameters are increased, the roughness is increased, and the specific surface area is increased compared with that of the original diatomite, so that the modified diatomite and the modified activated carbon have higher capabilities of adsorbing toxic gases such as carbon monoxide, hydrogen sulfide and organic gas; in addition, the diatomite and the algae mud are mixed to decompose water molecules into positive and negative ions, thereby having the effect of killing harmful substances such as bacteria and molds and being good for human health.

Description

technical field [0001] The invention relates to the technical field of industrial waste gas treatment, in particular to a treatment agent for absorbing high-end casting waste gas and a preparation method thereof. Background technique [0002] Exhaust gas is one of the important sources of air pollution, which refers to the toxic and harmful gases emitted by human beings in the process of production and life. Especially in chemical plants, steel plants, pharmaceutical plants, coking plants and oil refineries, etc., the exhaust gas emitted has a strong smell, which seriously pollutes the environment and affects human health. Industrial waste gas emitted by various production enterprises is an important source of air pollutants. If a large amount of industrial waste gas is discharged into the atmosphere without treatment and reaches the standard, it will inevitably reduce the quality of the atmospheric environment, bring serious harm to human health, and cause huge losses to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/14B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/304B01D2257/502B01D2257/70B01D2257/91B01D2257/93B01J20/14B01J20/28054
Inventor 熊夏鸣
Owner NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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