Method for rapidly disposing isopropyl nitrate and application of method

A technology of isopropyl nitrate and a processing method, which is applied in the field of safe processing of nitrate-based energetic materials, can solve the problems of undisclosed safe processing methods of isopropyl nitrate energetic materials, etc., and achieves reaction rate improvement and simple reaction conditions. , the effect of high removal rate

Active Publication Date: 2017-05-10
NO 63908 TROOPS PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The prior art does not disclose the safe handling method of isopropyl nitrate energetic material

Method used

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  • Method for rapidly disposing isopropyl nitrate and application of method
  • Method for rapidly disposing isopropyl nitrate and application of method
  • Method for rapidly disposing isopropyl nitrate and application of method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-16

[0021] Prepare 150mL sodium sulfide solutions of different concentrations, add them to a constant temperature water bath, raise the temperature to the corresponding temperature, then adjust the pH value, add 5mL isopropyl nitrate, and start the reaction. Take 10 mL of the reaction product at 25 min, 50 min, 75 min, and 8 h of reaction, extract with 10 mL of diethyl ether, analyze the extraction phase by gas chromatography, and calculate the removal rate of isopropyl nitrate.

[0022] The concentration of sodium sulfide solution, reaction temperature, reaction pH value and removal rate of isopropyl nitrate in each embodiment are shown in Table 1 below.

[0023]

[0024] As can be seen from Table 1, the preferred reaction conditions of isopropyl nitrate and excessive sodium sulfide reaction are:

[0025] A sodium sulfide aqueous solution with a concentration of 0.1-0.2 mol / L is used, the pH of the reaction solution is controlled to be 6-14, and the temperature is 50-70°C. In...

Embodiment 17-20

[0029] Prepare 150mL of sodium sulfide solution with a concentration of 0.2mol / L, add it to the reaction kettle, raise the temperature to 70°C, adjust the pH value to 10, add 5mL of isopropyl nitrate to be decomposed, and add a corresponding amount of catalyst to start the reaction.

[0030] The amount that adds catalyst among the embodiment 17-20 is respectively 1%, 3%, 5%, 7% of isopropyl nitrate molar weight, does not add dodecyltrimethylammonium bromide in the comparative example, with this Consider the effect of the amount of catalyst on the reaction. At 5min, 15min, 25min, 35min, and 4h of the reaction, 10mL of the reaction product was taken, extracted with 10mL of ether, and the extraction phase was analyzed by gas chromatography to determine the removal rate of isopropyl nitrate. By comparison, the influence of the catalyst on the reaction was determined. Table 2 is the test results. figure 1 A plot of the rate constants measured for different experimental reactions....

Embodiment 21-24

[0037] With reference to embodiment 17-20, in embodiment 21-24, control the reaction temperature of sodium sulfide aqueous solution and isopropyl nitrate to be 60 ℃, the amount of adding catalyst is 5% of isopropyl nitrate molar weight, all the other reaction control conditions and The removal rate of isopropyl nitrate measured in different time periods is shown in Table 3 below.

[0038]

[0039] By table 3 and table 1 isopropyl nitrate removal ratio comparison shows that catalyst dodecyltrimethylammonium bromide catalyzes sodium sulfide aqueous solution and isopropyl nitrate reaction, can significantly improve reaction rate constant, and in a short period of time is A high removal rate of isopropyl nitrate can be obtained.

[0040] The invention also discloses the application of the above method, which is applied to the scrap treatment of weapons and ammunition containing isopropyl nitrate. For example, for the cloud explosion bomb, isopropyl nitrate is the main componen...

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Abstract

The invention relates to the technical field of safety disposal of nitrate energetic materials, and particularly discloses a method for rapidly disposing isopropyl nitrate and application of the method. The method comprises the following steps: performing mixing reaction on the isopropyl nitrate or an aqueous solution thereof and an excessive sodium sulfide solution, and adding a catalyst, namely, dodecyltrimethylammonium bromide, to catalyze reducing reaction of the isopropyl nitrate, wherein the molar weight of the added catalyst is 1 to 7 percent of the molar weight of the isopropyl nitrate. The method can be used for scrap disposal of isopropyl nitrate-containing arms and ammunition. According to the method, the isopropyl nitrate can be rapidly deenergized and decomposed, and the method is low in time consumption, high in removal rate and safety, simple in control condition and easy to operate.

Description

technical field [0001] The invention relates to the technical field of safe processing of nitrate ester energetic materials. Background technique [0002] Isopropyl nitrate is a kind of energetic material of nitrates, which has a wide range of applications in national defense, medicine, industry and so on. Its sensitivity is low, and it will cause combustion and explosion when it encounters open flame and high heat. Slightly soluble in water, highly volatile and toxic, harmful to human body after inhalation, oral administration or skin absorption. In terms of national defense, isopropyl nitrate, as an energetic material, has been widely used in related weapons and ammunition. When the equipped weapons and ammunition are decommissioned, scrapped or unqualified, they need to be safely and quickly de-energyd and decomposed in a timely manner. Cloud bomb is a new type of ammunition that has been equipped in large quantities. Isopropyl nitrate is the main component of its warhe...

Claims

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Application Information

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IPC IPC(8): C02F1/70F42D5/04C02F101/38C02F101/34
CPCC02F1/70C02F2101/34C02F2101/38F42D5/04
Inventor 陈永康陈明华石腾飞葛强安振涛王韶光张力
Owner NO 63908 TROOPS PLA
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