Nickel hydrazine azide, its preparation method and uses as explosive ignitor

An azide and nickel salt technology, applied in the field of detonating medicinal compounds and their preparation, can solve the problems of long production cycle, large energy consumption, weak detonating power of nickel hydrazine nitrate, etc., and achieves low electrostatic accumulation, low mechanical sensitivity, The effect of low electrostatic spark sensitivity

Inactive Publication Date: 2007-05-30
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Lead azide, cadmium perchlorate carbohydrazide and lead styphate at both ends, in practical applications, either need to be filled with igniting powder due to too low flame sensitivity, or cannot be used alone due to low power
At the same time, there are problems such as high mechanical sensitivity of lead azide, high electrostatic spark sensitivity of lead styphate, weak detonation force of nickel hydrazine nitrate and serious pollution of the environment by dinitrodiazophenol manufacturing wastewater.
Although co-precipitation is adopted in an attempt to achieve complementary performance, such as the co-precipitation primer (D S) formed by lead azide and lead styphate, which has achieved certain results, the exposed deficiency in sensitivity still exists
[0003] In addition, in terms of synthesis process, the above-mentioned agents all require a suitable temperature value between 50°C and 80°C, and some agents also require 2 or even 3 times of heating or heating / cooling process, the process is complicated and the quality is difficult to control. , high energy consumption, serious waste of water resources, and long production cycle are undoubtedly contrary to the principle of sustainable development, and it is urgent to solve them with effective means

Method used

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  • Nickel hydrazine azide, its preparation method and uses as explosive ignitor
  • Nickel hydrazine azide, its preparation method and uses as explosive ignitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: in conjunction with Fig. 1, raw material specification and requirement: hydrazine hydrate (N 2 h 4 ·H 2 O)AR, nickel nitrate (Ni(NO 3 ) 2 ) AR, sodium nitride (NaN 3 ) CP, nitric acid (HNO 3 ) CP, ethanol (C 2 h 5 OH)CP, main instruments and equipment: electric mixer; voltage regulating transformer; super constant temperature water bath; tall beaker (combiner) 400mL, Buchner funnel Ф65mm; filter bottle 1000mL, water bath oven, rotary vane vacuum pump.

[0018] The acidified 80mL deionized water was used as the reaction bottom liquid, placed in the compounder, and the raw material feeding ratio (mass ratio) was: Ni(NO 3 ) 2 ·6H 2 O:NaN 3 :N 2 h 4 ·H 2 O=2.19:1:0.80; feeding time: 30min~60min, compounding temperature: room temperature~70°C; heat the bottom solution in a constant temperature water bath to 60°C~70°C, start the stirrer at the same time, adjust the voltage to proper stirring state. Slowly add Ni(NO 3 ) 2 / NaN 3 The mixture and ...

Embodiment 2

[0023] Embodiment 2: in conjunction with Fig. 2, the 80mL Ni(NO 3 ) 2 The solution is used as the reaction bottom liquid, placed in the compounder, then the stirrer is started, and the voltage is adjusted to a proper stirring state. Slowly add NaN dropwise at room temperature through the method of double-tube dropwise addition 3 solution and N 2 h 4 ·H 2 O solution, adjust the appropriate drop rate ratio. Continue to stir for 10 minutes after the addition is complete, and then discharge directly.

[0024] The operating method of suction filtration, washing, dehydration and drying is the same as in Example 1.

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Abstract

The invention discloses an azide hydrazine nickel and making method of detonating medicinal compound, which comprises the following steps: adding soluble nickel salt and azide liquid and hydrazine hydrate solution in the water to do combination reaction; or adding azide solution and hydrazine hydrate solution in the nickel solution to do combination reaction; setting the feeding time for 30-40 min under 50-70 deg.c; cooling; sucking; washing; dehydrating; drying to obtain the product; adjusting pH value through adding diluted acid. The invention provides a safer, more energy-saving and effective pharmaceutical synthetic method, which improves flame sensitivity with low mechanic sensitivity and electrostatic accumulation.

Description

1. Technical field [0001] The invention relates to a compound for priming agent and a preparation method thereof, in particular to a nickel hydrazine compound, a preparation method thereof and an application as a priming agent. 2. Background technology [0002] Currently, agents used as primers include lead azide (LA), lead styphenate (LTNR), dinitrodiazophenol (DDNP), cadmium perchlorate carbohydrazide (GTG) and nickel hydrazine nitrate (NHN ). The latter two agents, together with nickel azide, belong to energetic complexes. The order of their power is: LA>GTG>NHN>DDNP>LTNR, and the order of flame sensitivity is just the opposite. Lead azide, cadmium perchlorate carbohydrazide, and lead styphate at both ends, in practical applications, either need to be filled with igniting powder because the flame sensitivity is too low, or cannot be used alone because of the low power. At the same time, there are problems such as high mechanical sensitivity of lead azide, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B35/00
Inventor 朱顺官牟景艳吴幼成
Owner NANJING UNIV OF SCI & TECH
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