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Organic oxidizing agent and preparation method thereof

An organic oxidant and catalyst technology, applied in the field of pyrotechnics, can solve the problems of high decomposition temperature, difficult to ignite, high cost, and environmental pollution, and achieve the effect of solving the problem of easy extinguishment, low hygroscopicity, and environmental friendliness

Inactive Publication Date: 2011-10-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to realize green pyrotechnics, to solve the problems that some current pyrotechnic oxidants are toxic, pollute the environment, have high cost, high decomposition temperature, difficult to ignite, low safety and stability, etc., and propose an organic oxidant and its preparation method

Method used

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  • Organic oxidizing agent and preparation method thereof
  • Organic oxidizing agent and preparation method thereof
  • Organic oxidizing agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] With stearyl tertiary amine, monochloromethane, sodium perchlorate as raw materials, isopropanol and distilled water as solvent, potassium hydroxide as catalyst, the specific steps are:

[0020] 1) Add 0.01mol of octadecyl tertiary amine to a reactor containing 125ml of isopropanol and 125ml of distilled water as a mixed solvent, then add 0.1mmol of potassium hydroxide, replace the air in the reactor with nitrogen, and then heat up to 45°C. Then pass through 0.01mol monochloromethane, and react at 0.4MPa for 4h;

[0021] 2) Add 0.01 mol of sodium perchlorate into the reactor of step 1), and stir. After 10 hours of reaction, crystals are precipitated after cooling, filtered, and the filter cake is washed 3 times with distilled water, and dried in a vacuum oven at 60°C , to obtain the organic oxidant octadecyltrimethylammonium perchlorate, its molecular structure formula is Its FTIR spectrum is as figure 1 shown.

Embodiment 2

[0023] With stearyl tertiary amine, monochloromethane, sodium perchlorate as raw materials, isopropanol and distilled water as solvent, sodium hydroxide as catalyst, the specific steps are:

[0024] 1) Add 0.01mol of octadecyl tertiary amine to a reactor containing 83ml of isopropanol and 167ml of distilled water mixed solvent, then add 0.3mmol of sodium hydroxide, replace the air in the reactor with nitrogen, and then heat up to 45°C. Then pass through 0.01mol monochloromethane, and react at 0.4MPa for 4h;

[0025] 2) Add 0.01 mol of sodium perchlorate into the reactor of step 1), and stir. After 10 hours of reaction, crystals are precipitated after cooling, filtered, and the filter cake is washed 3 times with distilled water, and dried in a vacuum oven at 60°C , to obtain the organic oxidant octadecyltrimethylammonium perchlorate, its molecular structure formula is

[0026]

Embodiment 3

[0028] With stearyl tertiary amine, monochloromethane, sodium perchlorate as raw materials, isopropanol and distilled water as solvent, potassium hydroxide as catalyst, the specific steps are:

[0029] 1) Add 0.01mol of octadecyl tertiary amine to a reactor containing 62.5ml of isopropanol and 187.5ml of distilled water mixed solvent, then add 0.3mmol of potassium hydroxide, replace the air in the reactor with nitrogen and heat up to 55 ℃, then pass through 0.02mol monochloromethane, and react at 0.5MPa for 3h;

[0030] 2) Add 0.02 mol of sodium perchlorate into the reactor of step 1), and stir. After reacting for 15 hours, crystals precipitate out after cooling, filter, wash the filter cake 3 times with distilled water, and dry in a vacuum oven at 60°C , to obtain the organic oxidant octadecyltrimethylammonium perchlorate, its molecular structure formula is

[0031]

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Abstract

The invention relates to an organic oxidizing agent and a preparation method thereof, belonging to the technical field of pyrotechnic compositions. A molecular structural formula of the organic oxidizing agent is described in the specification. The preparation method comprises the steps of: adding octadecyl tertiary amine to a reactor filled with a mixed solvent of isopropanol and distilled water; adding potassium hydroxide or sodium hydroxide; heating up to 45-55 DEG C after air in the reactor is replaced with nitrogen; and then introducing methane chloride into the reactor; reacting for 2-4 hours at a pressure of 0.4-0.5 MPa; and then adding sodium perchlorate and stirring; and after the reaction is finished, cooling a reaction product to separate out crystals; and filtering, washing and drying the crystals to obtain the organic oxidizing agent octadecyl trimethyl ammonium perchlorate. The organic oxidizing agent prepared by using the method provided by the invention has the advantages of low hygroscopicity, more decomposition and releasing energy than that of the potassium perchlorate, environment friendliness, safety, reliability and low cost; and the problem that an initiator of the pyrotechnic composition containing the potassium perchlorate is easy to extinguish is solved.

Description

technical field [0001] The invention relates to an organic oxidant and a preparation method thereof, belonging to the technical field of pyrotechnics. Background technique [0002] In pyrotechnics, traditional oxidants include nitrates, perchlorates, and chlorates, as well as less commonly used organic oxidants such as guanidine nitrate and nitroguanidine, nitroperchloric acid, chromate, and dichromate Salt, etc., in addition to some alkaline earth metal oxides such as SrO 2 , BaO 2 . Potassium chlorate has been banned by countries all over the world because of its low decomposition temperature and high sensitivity, especially when it is formulated with sulfur as pyrotechnic powder. Nitrates and some perchlorates require higher temperatures to decompose, releasing atomic oxygen. [0003] In order to realize green pyrotechnics, Germany's T.M.Klapotke et al. proposed that the development of pyrotechnics should focus on nitrogen-rich compounds. Compared with traditional ene...

Claims

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Application Information

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IPC IPC(8): C07C211/63C07C209/12
Inventor 钱新明徐厚材黄平刘振翼
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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