Low-cost haze-removing auxiliary agent capable of rapidly eliminating haze and preparation method

A technology for eliminating smog and haze additives, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as high cost, large water consumption, and poor haze removal effect, and achieve cost control, efficient decomposition, The effect of improving efficiency

Inactive Publication Date: 2018-05-18
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the defects of large water consumption and poor haze removal effect in the widely used water spray haze removal technology at present, and the existing photocatalytic haze removal materials have problems such as high cost, slow degradation of harmful gases, and inability to effectively remove solid particles, etc., The present invention proposes a low-cost haze removal aid and preparation method for quickly eliminating haze, thereby significantly improving the efficiency of haze removal and effectively controlling the cost

Method used

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  • Low-cost haze-removing auxiliary agent capable of rapidly eliminating haze and preparation method
  • Low-cost haze-removing auxiliary agent capable of rapidly eliminating haze and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation process is:

[0038](1) Add 8 parts by weight of ferric nitrate hydrate and 22 parts by weight of ethylene glycol methyl ether to 68 parts by weight of water and mix evenly, add 2 parts by weight of tetrabutyl titanate dropwise in a constant temperature water bath at 60°C, and react with magnetic stirring for 80 minutes , to prepare ferric oxide nanocrystalline sol; the speed of magnetic stirring is 130r / min;

[0039] (2) Add 0.8 parts by weight of zinc acetate to 58 parts by weight of absolute ethanol, stir magnetically at 50°C until fully dissolved to obtain a zinc oxide precursor solution, add 41.2 parts by weight of lithium hydroxide solution dropwise, and stir vigorously for 50 minutes , filtered, cleaned, and dried to obtain zinc oxide quantum dots; the speed of magnetic stirring is 130r / min; the stirring speed of vigorous stirring is 700r / min; the lithium hydroxide solution is a lithium hydroxide solution with a mass concentration of 0.3%;

[004...

Embodiment 2

[0046] The preparation process is:

[0047] (1) Add 6 parts by weight of ferric nitrate hydrate and 18 parts by weight of ethylene glycol methyl ether to 75 parts by weight of water and mix evenly, add 1 part by weight of tetrabutyl titanate dropwise in a constant temperature water bath at 55°C, and react with magnetic stirring for 100 minutes , to prepare ferric oxide nanocrystalline sol; the speed of magnetic stirring is 100r / min;

[0048] (2) Add 0.5 parts by weight of zinc acetate to 55 parts by weight of absolute ethanol, stir magnetically at 40°C until fully dissolved to obtain a zinc oxide precursor solution, add 44.5 parts by weight of lithium hydroxide solution drop by drop, and stir vigorously for 40 minutes , filtered, cleaned, and dried to obtain zinc oxide quantum dots; the speed of magnetic stirring is 100r / min; the stirring speed of vigorous stirring is 600r / min; the lithium hydroxide solution is a lithium hydroxide solution with a mass concentration of 0.2%;

...

Embodiment 3

[0055] The preparation process is:

[0056] (1) Add 10 parts by weight of ferric nitrate hydrate and 25 parts by weight of ethylene glycol methyl ether into 62 parts by weight of water and mix evenly, add 3 parts by weight of tetrabutyl titanate dropwise in a constant temperature water bath at 65°C, and react with magnetic stirring for 100 minutes , to prepare ferric oxide nanocrystalline sol; the speed of magnetic stirring is 150r / min;

[0057] (2) Add 1 part by weight of zinc acetate to 60 parts by weight of absolute ethanol, stir magnetically at 60°C until fully dissolved to obtain a zinc oxide precursor solution, add 39 parts by weight of lithium hydroxide solution drop by drop, and stir vigorously for 60 minutes , filtered, cleaned, and dried to obtain zinc oxide quantum dots; the speed of magnetic stirring is 150r / min; the stirring speed of vigorous stirring is 800r / min; the lithium hydroxide solution is a lithium hydroxide solution with a mass concentration of 0.5%;

...

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Abstract

The invention provides a low-cost haze-removing auxiliary agent capable of rapidly eliminating haze and a preparation method. The preparation method comprises the following steps: enabling iron nitrate hydrate, ethylene glycol methyl ether and tetrabutyl titanate to react to prepare ferric oxide nano-crystalline hydrosol; meanwhile, enabling zinc acetate and lithium hydroxide to react in absoluteethyl alcohol, so as to prepare zinc oxide quantum dots; adding the zinc oxide quantum dots, water and glycerin into a homogenization machine together to prepare a dispersion body; adding the prepareddispersion body and liquid carbon dioxide into a dry ice particle manufacturing machine, and granulating to obtain the powdery low-cost haze-removing auxiliary agent capable of rapidly eliminating the haze. According to the method provided by the invention, a photocatalytic material is dispersed into the glycerin and the water, and can be completely dispersed in a utilization process, so that harmful gas sol in the haze can be rapidly and efficiently decomposed; a charge stable system of haze aerosol can be damaged; solid particles are stuck to form large particles, and then the large particles are rapidly deposited to the ground, so that the aim of rapidly eliminating the haze is realized; meanwhile, a preparation process is simple, and the production cost and the utilization cost are low; the low-cost haze-removing auxiliary agent has a good haze elimination effect and has an extremely wide application prospect.

Description

technical field [0001] The invention relates to the field of haze treatment, in particular to a photocatalytic agent for eliminating haze, in particular to a low-cost and fast eliminating haze agent and a preparation method. Background technique [0002] Haze is a weather phenomenon caused by particles of PM2.5 and other size, dust, aerosol and other particles floating in the atmosphere under relatively stable weather conditions such as certain humidity and temperature. It is the result of the interaction between specific climatic conditions and human activities. . The main components of smog are sulfur dioxide, nitrogen oxides and inhalable particulate matter. The main reasons for the formation of smog are industrial production emissions, automobile exhaust, coal-fired exhaust, construction sites and road traffic dust. Smog pollution in my country has become more and more serious. Smog will have serious adverse effects on human health and cause serious harm to ecosystems ...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D49/00
CPCB01D49/003B01D53/86B01D2255/20738B01D2255/20792B01D2255/802B01D2258/06Y02P70/10
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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