Suspensions of hexanitrohexaazaisowurtzitane crystals, production of said suspensions and production of pyrotechnic objects

A technology of hexanitrohexanitrohexanitrogen and isowurtzitane, which is applied in the fields of hexanitrohexaazaisowurtzane crystal suspension, the production of the suspension, and the production of pyrotechnic articles, can solve problems such as complex implementation, and achieve Effect of Low Saturation Vapor Pressure

Inactive Publication Date: 2012-07-18
海瑞克里兹 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Thus, while satisfactory in terms of industrial production of CL20, the method of EP 0913374 shows the disadvantage of using flammable non-solvents
This complicates the implementation of t...

Method used

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  • Suspensions of hexanitrohexaazaisowurtzitane crystals, production of said suspensions and production of pyrotechnic objects
  • Suspensions of hexanitrohexaazaisowurtzitane crystals, production of said suspensions and production of pyrotechnic objects
  • Suspensions of hexanitrohexaazaisowurtzitane crystals, production of said suspensions and production of pyrotechnic objects

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Experimental program
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Embodiment Construction

[0061] Item A: Preliminary study on the solubility of hexanitrohexaazaisowurtzitane in HFE 7500 and in ethyl acetate / HFE 7500 mixtures

[0062] Ethyl acetate and HFE 7500 are completely miscible.

[0063] The solubility of CL20 was studied in non-solvent HFE 7500 and in a solution consisting of a mixture of ethyl acetate (solvent for CL20) and HFE 7500 (non-solvent for CL20).

[0064] By liquid chromatography (HPLC), the solubility of CL20 in non-solvent HFE 7500 was determined to be 0.012g / 100g HFE 7500.

[0065] Referring to the prior art methods for crystallizing CL20 (methods developed on an industrial scale), the target solubility is preferably at a concentration per liter of a mixture of ethyl acetate (solvent for CL20) and HFE 7500 (non-solvent for CL20) In the formed solution, about 100 g of CL20 was dissolved.

[0066] As shown in Table 1, the tests were carried out at 20°C on a small scale (solution volume less than 100ml), and the appropriate mixing ratio interval...

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Abstract

The invention relates to suspensions of hexanitrohexaazaisowurtzitane crystals in a liquid phase (whereby the liquid phase comprises at least 85 wt% of a non-solvent of hexanitrohexaazaisowurtzitane, said non-solvent consisting of at last one non-flammable hydrofluoroether, and contains between 0 and less than 15 wt% of an organic solvent of hexanitrohexaazaisowurtzitane which is more volatile than the non-sovent and selected from the group containing esters, nitriles, ketones and mixtures thereof). The invention also relates to the production of said suspensions and to the use thereof for the production of pyrotechnic objects. The use of at least one hydrofluoroether as a non-solvent is particularly suitable.

Description

technical field [0001] The present invention relates to: [0002] - a suspension of hexanitrohexaazaisowurtzitane crystals in a liquid phase (comprising a novel non-solvent for said hexanitrohexaazaisowurtzitane); [0003] - a method of producing said suspension; and [0004] - Utilization of the suspension for the manufacture of pyrotechnic objects. [0005] The present invention belongs to the field of powders, propellants and explosives used in particular in the arms industry. Background technique [0006] Over the years, there have been many publications involving 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo (5.5.0.0 5，9 .0 3，11 ) dodecane, also known as hexanitrohexaazaisowurtzitane or CL20. These publications describe the following: Various polymorphic forms of this compound (this is because hexanitrohexaazaisowurtzitane is known to be obtained in four crystal polymorphic forms: β, α, γ and ε ); the physical, chemical and detonating properties of this ...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B25/34C07D487/22
CPCC07D487/22C06B21/0066C06B25/34C06B21/00C06B47/00C06B47/145
Inventor 弗洛朗·马斯卡特利菲利普·莱斯科
Owner 海瑞克里兹
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