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Device for decomposition reaction of medicament for chemical weapon and monitoring method thereof

A technology for decomposition reactions and chemical weapons, used in instruments, analytical materials, etc.

Inactive Publication Date: 2012-09-05
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If this is the case, the detoxification treatment will take too much time to decompose in the reaction time, and the reaction temperature for the treatment is also excessively high, so it will take further time to achieve the results of decomposition and detoxification treatment. , to achieve the harmless treatment of the liquid to the next process will result in a huge waste of time
In order to prevent this waste of time, the decomposition process must be performed by using a plurality of reaction vessels alternately, which has a problem that the efficiency of decomposition and detoxification is very low.

Method used

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  • Device for decomposition reaction of medicament for chemical weapon and monitoring method thereof
  • Device for decomposition reaction of medicament for chemical weapon and monitoring method thereof
  • Device for decomposition reaction of medicament for chemical weapon and monitoring method thereof

Examples

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Effect test

Embodiment 1

[0045] Add 5 kg of sulfur mustard gas into 500 liters (1) of sodium hydroxide solution with a concentration of 20% by mass in the reaction vessel, extract 50 milliliters (ml) of the decomposition reaction solution after mixing, if the chlorine in the reaction solution is measured by the ion electrode method Ion concentration, the lower limit concentration that can be detected is 100ppm or less. Therefore, in order to improve the decomposition reaction rate, the reaction solution in the reaction vessel is heated to 95° C., and after the decomposition reaction is carried out for 1 hour, 50 milliliters (ml) of the reaction solution are similarly extracted, and the measured chloride ion concentration is 430 ppm. The total concentration of chlorine measured by radiographic method is 440ppm. As a result, the decomposition rate S was confirmed to be 98% or more. At this time, the measurement of the chlorine ion concentration and the measurement of the total chlorine concentration ar...

Embodiment 2

[0047] 2 g of Lewis gas was added to 200 milliliters (ml) of a 20% by mass sodium hydroxide solution in the reaction vessel, and the concentration of chloride ions analyzed by the ion electrode method after 5 minutes was 5100 ppm. The theoretical chloride ion concentration calculated according to the input amount of the organic chloride to the reaction vessel is 5145ppm. Considering the purity of the organic chloride, it is judged that the neutralization and dechlorination reactions are sufficiently carried out. The reaction solution was heated for 2 hours. After the reaction, if the residual Lewis gas is analyzed by GC / MS method, it will be lowered to below the lower limit of detection (0.01ppm).

[0048] On the other hand, as a comparative example, as described in Example 1, in order to measure the concentration of sulfur mustard gas in the reaction solution after heating to 95° C. and decomposing for 1 hour, the reaction solution was sampled and mixed with hexane. , the oi...

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Abstract

The present invention provides a monitoring method and a reaction control method for rapidly detecting the decomposed product and holding the processing degree of the decomposition reaction with a mode with high-efficiency decomposition and innocent treatment when the method is used to decompose the mustard gas, lewisite, chloroacetophenone which are used as chemical weapons and make the gases harmless. In the process that the alkaline water solution decomposes the organochloride or the organochloride is decomposed in the alkaline water solution mixing with oxidizing agent, the analyzing facilities like ion electrode method and X-ray fluorescence method, etc. are used to analyze the chlorine ion concentration and overall chlorine concentration in the decomposition reaction solution, evaluates the resolution ratio S(%) represented by the (chlorine ion concentration to overall chlorine concentration) thereby monitoring and holding the processing condition of the decomposition reaction to cause that the decomposition is controlled. Hereby, the setting to the reaction conditions of decomposition reaction time and decomposition reaction temperature, etc. can be accurately processed.

Description

technical field [0001] The present invention relates to a method for decomposing and harmlessly treating mustard gas, lewisite gas, chloroacetophenone, etc., which are agents for chemical weapons. Background technique [0002] Typical methods for decomposing mustard gas, Lewis gas, chloroacetophenone, etc., which are agents for chemical weapons, include a combustion method and a chemical decomposition method using a solution (neutralization method). Among them, the chemical decomposition method using a solution is generally a method of combining hydrolysis and oxidative decomposition under moderate conditions of 100°C or less, and is a method because there is little risk of harmful gas generation accompanying the decomposition (of the chemical agent) An effective harmless treatment method (for example, refer to Patent Document 1). In this chemical decomposition method, since the chemical decomposition is carried out using a reaction tank, it is desirable to monitor the prog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/00A62D3/34A62D3/38A62D101/02
Inventor 增田薰井田彻大塚刚树
Owner KOBE STEEL LTD
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