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Preparation method of benzotrifuroxan (BTF) and trinitrotoluene (TNT) cocrystallized explosive

A technology of benzofurazan and eutectic explosives, which is applied in the direction of aromatic nitration compositions, etc., can solve the problems of preparation without public literature reports, etc., and achieve the effects of excellent fluidity, convenient operation, and simple process flow

Active Publication Date: 2013-03-27
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no public literature report on the preparation of BTF-TNT eutectic explosives

Method used

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  • Preparation method of benzotrifuroxan (BTF) and trinitrotoluene (TNT) cocrystallized explosive
  • Preparation method of benzotrifuroxan (BTF) and trinitrotoluene (TNT) cocrystallized explosive
  • Preparation method of benzotrifuroxan (BTF) and trinitrotoluene (TNT) cocrystallized explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] At room temperature, 50ml of acetone was added into the three-necked flask, and then a sufficient amount of BTF was added under stirring, dissolved and filtered to obtain a saturated solution of BTF. Then add a sufficient amount of TNT, stir, dissolve, and filter, and the obtained filtrate is a BTF-TNT saturated solution. Put the filtrate in a beaker, then put it still in a thermostat at 30°C, let the solvent evaporate, precipitate crystals, and dry to obtain BTF-TNT eutectic explosive.

Embodiment 2

[0031] At room temperature, 100ml of ethanol was added into the three-necked flask, and then a sufficient amount of BTF was added under stirring, dissolved and filtered to obtain a saturated solution of BTF. Then add a sufficient amount of TNT, stir, dissolve, and filter, and the obtained filtrate is a BTF-TNT saturated solution. Put the filtrate in a beaker, then put it still in a thermostat at 30°C, let the solvent evaporate, precipitate crystals, and dry to obtain BTF-TNT eutectic explosive.

Embodiment 3

[0033] At room temperature, 80ml of tetrahydrofuran was added into the three-necked flask, and then a sufficient amount of BTF was added under stirring, dissolved and filtered to obtain a saturated solution of BTF. Then add a sufficient amount of TNT, stir, dissolve, and filter, and the obtained filtrate is a BTF-TNT saturated solution. Put the filtrate in a beaker, then put it still in a thermostat at 35°C, let the solvent evaporate, precipitate crystals, and dry to obtain BTF-TNT eutectic explosive.

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Abstract

The invention discloses a preparation method of a benzotrifuroxan (BTF) and trinitrotoluene (TNT) cocrystallized explosive. The preparation method comprises the following steps of: (1) preparation of BTF-TNT saturated solution, namely, adding sufficient quantity of BTF to a crystallization solvent, raising the temperature to 20-50 DEG C, dissolving BTF and filtering the solution to obtain the BTF saturated solution; and adding sufficient quantity of TNT to the BTF saturated solution to be dissolved and filtering the solution to obtain the BTF-TNT mixed saturated solution; and (2) preparation of the BTF-TNT cocrystallized explosive: putting the BTF-TNT mixed saturated solution into a beaker, then standing in a constant temperature incubator, evaporating the solvent and drying the product, thus obtaining the BTF-TNT cocrystallized explosive. The preparation method has the beneficial effects that the prepared BTF-TNT cocrystallized explosive has good safety and detonation property and excellent free-flowing property, can serve as the component of explosives, gunpowder and propellants and has better application prospect in high-energy insensitive ammunitions; and the preparation method has the advantages of simple process flow, convenience in operation, mild reaction conditions, good safety and high product quality.

Description

technical field [0001] The invention belongs to the field of energetic materials, and specifically relates to a preparation method of benzofurazan and TNT (BTF-TNT) eutectic explosives. The invention has good application prospects in high-energy explosives and insensitive ammunition. Background technique [0002] The properties of energetic materials (detonation energy, thermal stability, sensitivity) are closely related to the density and melting point of the material. Since the energy and sensitivity of explosives synthesized so far are contradictory, that is, explosives with higher energy may also have higher sensitivity. The serious contradiction between the energy and safety of existing energetic materials restricts their further development and application. At present, methods such as recrystallization, polymer coating and compounding are usually used to modify the existing simple explosives. These traditional modification methods do not change the internal compositio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/04
Inventor 杨宗伟聂福德李洪珍周小清张朝阳张祺王玉平黄辉
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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