Preparation method for benzotrifuroxan and m-dinitrobenzene eutectic explosive

Abstract

The invention discloses a preparation method for a benzotrifuroxan and m-dinitrobenzene eutectic explosive. The preparation method comprises the following steps: firstly, preparing a benzotrifuroxan and m-dinitrobenzene saturated solution through a crystallization solvent; secondly, evaporating the solvent of the saturated solution by a constant temperature incubator and crystallizing to form the benzotrifuroxan and m-dinitrobenzene eutectic explosive. The benzotrifuroxan and m-dinitrobenzene eutectic explosive has the benefits of excellent safety, good detonation performance and good free-running property, can serve as a component of a novel booster explosive, has a good application prospect in high-energy low-sensitive ammunitions, and is simple and stable in preparation method and process flow, convenient to operate, moderate in reaction conditions, good in safety and high in quality.

Description

technical field

[0001] The invention belongs to the field of energetic materials, and specifically relates to the preparation method of benzofurazan and m-dinitrobenzene (BTF-DNB) eutectic explosive. The invention has better application in high-energy and low-sensitivity booster explosives prospect. Background technique

[0002] The performance of energetic materials (detonation energy, safety, etc.) is closely related to the constituent elements and molecular structure of the material. Due to the serious contradiction between energy and safety of existing energetic materials, that is, explosives with higher energy may also have higher sensitivity, which restricts their further development and application. Therefore, it is urgent to resolve the contradiction between the energy and safety of energetic materials. On the one hand, the synthesis of new high-energy and low-sensitivity energetic materials is not only a complicated process and a long cycle, but also its applicati...

Examples

Embodiment 1

[0026] At room temperature, add 100ml of ethanol into the three-necked flask, then add a sufficient amount of BTF under stirring, control the temperature at 25°C, dissolve, and filter to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB 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-DNB eutectic explosive.

Embodiment 2

[0028] At room temperature, add 90ml of methanol into the three-necked flask, then add enough BTF under stirring, raise the temperature to 30°C, dissolve and filter to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB saturated solution. Put the filtrate in a beaker, then put it still in a constant temperature box at 25°C, let the solvent evaporate and precipitate crystals. Dry to obtain BTF-DNB eutectic explosive.

Embodiment 3

[0030] At room temperature, 50ml of acetone was added into the three-necked flask, and then a sufficient amount of BTF was added under stirring, the temperature was controlled at 20°C, dissolved, and filtered to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB 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-DNB eutectic explosive.

technical field

[0001] The invention belongs to the field of energetic materials, and specifically relates to the preparation method of benzofurazan and m-dinitrobenzene (BTF-DNB) eutectic explosive. The invention has better application in high-energy and low-sensitivity booster explosives prospect. Background technique

[0002] The performance of energetic materials (detonation energy, safety, etc.) is closely related to the constituent elements and molecular structure of the material. Due to the serious contradiction between energy and safety of existing energetic materials, that is, explosives with higher energy may also have higher sensitivity, which restricts their further development and application. Therefore, it is urgent to resolve the contradiction between the energy and safety of energetic materials. On the one hand, the synthesis of new high-energy and low-sensitivity energetic materials is not only a complicated process and a long cycle, but also its applicati...

Examples

Embodiment 1

[0026] At room temperature, add 100ml of ethanol into the three-necked flask, then add a sufficient amount of BTF under stirring, control the temperature at 25°C, dissolve, and filter to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB 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-DNB eutectic explosive.

Embodiment 2

[0028] At room temperature, add 90ml of methanol into the three-necked flask, then add enough BTF under stirring, raise the temperature to 30°C, dissolve and filter to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB saturated solution. Put the filtrate in a beaker, then put it still in a constant temperature box at 25°C, let the solvent evaporate and precipitate crystals. Dry to obtain BTF-DNB eutectic explosive.

Embodiment 3

[0030] At room temperature, 50ml of acetone was added into the three-necked flask, and then a sufficient amount of BTF was added under stirring, the temperature was controlled at 20°C, dissolved, and filtered to obtain a saturated solution of BTF. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a BTF-DNB 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-DNB eutectic explosive.

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