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A kind of emergency treatment agent for aniline leakage

A disposal agent, aniline technology, applied in the field of emergency disposal agents for hazardous chemicals, can solve the problems of limited aniline adsorption capacity, increased aniline concentration, and low aniline solubility, achieving good fluidity, low surface tension, and expanding the scope of pollution.

Active Publication Date: 2019-06-21
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For aniline vapor, it is usually diluted with water mist or foam; the solubility of aniline in water is low, and the aniline after water mist or foam treatment is easy to re-volatize, causing the concentration of aniline in the air to rise again
For liquid aniline, sand or other non-combustible materials are mainly used for adsorption, but these adsorbents have limited adsorption capacity for aniline, and are easily affected by external conditions such as temperature rise, resulting in desorption of aniline, and the re-volatility of aniline vapor causes secondary hazards

Method used

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  • A kind of emergency treatment agent for aniline leakage
  • A kind of emergency treatment agent for aniline leakage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Measure 150mL of concentrated sulfuric acid (98%) and dissolve it in 480mL of water; then weigh 5.0g of sodium lauryl sulfate, 1.0g of sodium dodecyl sulfate, 20.0g of aluminum sulfate, and 30mL of hydrogen peroxide, and add them to the sulfuric acid solution. Stir until it is clear and colorless, and the emergency treatment agent for aniline leakage is obtained.

[0032] The prepared aniline leakage emergency treatment agent is packed in a storage tank and sprayed into a 125L simulated leakage box adding 250mL of aniline, wherein the initial concentration of aniline vapor is 198ppm. After the treatment agent is sprayed, the concentration of aniline vapor in the box can be When it drops below 7ppm, the decontamination rate is greater than 96%, aniline is transformed into solid salts, and the decontamination product presents a gel state.

Embodiment 2

[0034] Measure 400mL concentrated phosphoric acid (85%) and 30mL hydrogen peroxide to be dissolved in 950mL water, then take by weighing 8.0g cocamidopropyl sulfobetaine and 0.4g polyacrylic acid resin, join in the solution, stir until clear and colorless, That is, the emergency treatment agent for aniline leakage is obtained.

[0035] The prepared aniline leakage emergency treatment agent is packed in a storage tank and sprayed into a 125L simulated leakage box equipped with 500mL aniline, wherein the initial concentration of aniline vapor is 348ppm. After the treatment agent is sprayed, the aniline vapor in the box The concentration can be reduced to 14ppm, the decontamination rate is greater than 95%, the aniline is converted into solid salt substances, and the decontamination products are in a gel state. 30 minutes after the injection, the aniline vapor concentration in the box was measured to be 22ppm, and the decontamination rate remained above 94%, indicating that the d...

Embodiment 3

[0037] Measure 400mL of phosphoric acid and dissolve it in 750mL of water, then weigh 15.0g of sodium α-olefin sulfonate, 15.0g of aluminum sulfate hexahydrate, 12.0g of potassium permanganate and 1.0g of polyacrylic acid resin, add to the solution, stir until clear Colorless, that is, the emergency treatment agent for aniline leakage.

[0038] The prepared aniline leakage emergency disposal agent is packed in a storage tank and sprayed into a 125L simulated leakage space containing 500mL aniline, wherein the initial concentration of aniline vapor is 230ppm. After the disposal agent is sprayed, the aniline vapor in the leakage space The concentration can be reduced to 16ppm, the decontamination rate is greater than 93%, and aniline is converted into solid salt substances. 30 minutes after the end of spraying, the measured aniline vapor concentration was 20ppm, and the decontamination rate remained above 90%, indicating that the decontamination agent can effectively inhibit the...

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PUM

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Abstract

The invention discloses an aniline leakage emergency treatment agent. The aniline leakage emergency treatment agent consists of the following components in parts by weight: 0.5-10.0 parts of a surfactant, 5.0-40.0 parts of a transforming agent, 0-4.0 parts of a flocculating agent, 0-8.0 parts of an oxidant, 0-0.2 part of a curing agent and 50.0-95.0 parts of water. When in use, the aniline leakage emergency treatment agent is sprayed to an aniline leakage site in an atomizing manner, so that aniline vapor concentration in air can be quickly reduced, liquid-state aniline is quickly converted and solidified, and re-volatilization of the aniline vapor can be restrained within a relatively long time, so that necessary conditions are provided for subsequent rescue.

Description

technical field [0001] The invention relates to the field of emergency treatment agents for hazardous chemicals, in particular to an emergency treatment agent for aniline leakage. Background technique [0002] As an important amine substance, aniline is widely used in the fields of organic synthesis and chemical products, and is one of the most important raw materials in the industrial production of dyes, pesticides, and rubber. Aniline is highly toxic, a small amount can cause poisoning, and has carcinogenic effects on the human body; aniline also has the danger of explosion, and it can cause fires, explosions and other accidents when exposed to open flames. With the development of social economy, during the mass production and wide use of aniline, leakage often occurs, which not only pollutes the environment, but also brings great harm to the human body, animals, plants or other organisms. [0003] Emergency treatment is the primary measure after a hazardous chemical leak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/33A62D101/26
CPCA62D3/33A62D2101/26
Inventor 倪小敏王喜世姜童辉王志刚丛海勇孔祥晓黄妍清
Owner UNIV OF SCI & TECH OF CHINA
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