22results about "Single substance explosives" patented technology

The present invention discloses a method for preparing polymerized nitrogen and polymerized nitrogen, belonging to the technical field of energetic materials, and solves one of the following problems: (1) the relatively harsh conditions for synthesizing cg-PN; and (2) the low content of cg-PN prepared by existing techniques. The preparation method of the present invention obtains polymerized nitrogen by quenching an azide compound and carbon nanotubes from a high temperature to room temperature under high pressure. The cg-PN prepared by the preparation method of the present invention has a high yield and can be recovered under conventional conditions, and has potential application value in the field of energetic materials.

The present invention relates to a method for synthesizing an organic explosive, the method comprising the steps of: i) providing a first solution A; ii) providing a second solution B, selected such that an admixture of solutions A and B reacts together upon formation of the admixture to provide the organic explosive; iii) mixing solutions A and B and passing them through a flow reactor to produce the admixture, the flow reactor comprising a pipe, the inner diameter of which is selected to be less than a critical diameter of the organic explosive, thereby preventing detonation of the formed organic explosive in said flow reactor.

Scent sample for conditioning and training self-laboratory preparations (HME) such as TATP and HMTD for explosive detection dogs (SSH)

The invention discloses an inner salt type high-energy density insensitive explosive and a preparation method thereof, 9-amino-2, 6-dinitro-bis [1, 2, 4] triazolo [1, 3, 5] triazine, namely ZDTT, is prepared, and the ZDTT has the performance advantages of high energy density and insensitivity and also has the advantage of simple synthesis process; zDTT has a unique inner salt type condensed ring structure and is insoluble in water and conventional organic solvents. The ZDTT actual measurement density is 1.881 g.cm <-3 >, the detonation velocity is 8757 m.s <-1 >, the detonation pressure is 31.7 GPa, the initial thermal decomposition temperature is 330 DEG C, the impact sensitivity is larger than 40 J, the friction sensitivity is larger than 360 N, and the high-energy-density insensitive explosive has huge application potential in the field of high-energy-density insensitive explosives.

A method of synthesising an organic high explosive includes the steps ofi) providing a first solution A,ii) providing a second solution B,wherein the admixture of solution A and solution B are selected such that they are capable upon formation of the admixture of reacting together to provide an organic high explosive, andiii) causing the solution A and B to be mixed and passed through a flow reactor to create an admixture,wherein the flow reactor includes a pipe, wherein the internal diameter of the pipe is selected such that it is less than the critical diameter of the organic high explosive, thereby preventing detonation of the formed organic high explosive in said flow reactor.

The invention discloses a method for producing ecological primary explosive - basic bismuth(III) salt of 5,5 '-bis-azotetrazole and its using in ecological mixture for primer compositions of ammunition.

To provide a method for preparing 1,1,3-trichloro-4,4,4-trifluorobutane-1-en which is an intermediate product as a key of preparation of (E)-1,1,1,4,4,4-hexafluorobutane-2-en.SOLUTION: There are provided a method for preparing 1,1,3-trichloro-4,4,4-trifluorobutane-1-en in a gas phase which includes (i) a step of heating 2,4,4,4-tetrachloro-1,1,1-trifluorobutane in the presence of a chromium catalyst selected from a chromium oxide, a carbon supported chromium oxide, a chromium chloride and a carbon supported chromium chloride, in the absence of a hydrogen fluoride; a method for preparing 1,1,3-trichloro-4,4,4-trifluorobutane-1-en in a liquid phase which includes (ii) a step of heating 2,4,4,4-tetrachloro-1,1,1-trifluorobutane in the presence of an iron chloride (III) catalyst, in the absence of a hydrogen fluoride; and a method for preparing (E)-1,1,1,4,4,4-hexafluorobutane-2-en in a gas phase which includes (iii) a step of heating 1,1,3-trichloro-4,4,4-trifluorobutane-1-en in the presence of a chromium catalyst selected from a chromium oxide, a carbon supported chromium oxide, a chromium chloride and a carbon supported chromium chloride.SELECTED DRAWING: None

The invention relates to the technical field of energetic materials, in particular to application of electrochemistry in self-coupling of pyrimidine compounds under the catalyst-free condition, a pyrimidine self-coupling compound, a perchlorate derivative of the pyrimidine self-coupling compound and a preparation method and application of the pyrimidine self-coupling compound and the perchlorate derivative of the pyrimidine self-coupling compound. The invention provides an application of electrochemistry in self-coupling of pyrimidine compounds under a catalyst-free condition. The C-C self-coupling reaction of the pyrimidine compound is electrochemically driven under the condition of no catalyst, the product selectivity is high, the direct C-C self-coupling reaction of the pyrimidine ring in the pyrimidine compound is electrochemically driven under the condition of no catalyst, the bicyclic pyrimidyl energetic skeleton is constructed, and the product selectivity is high. Transition metal catalysis is not needed, reaction conditions are simple, product selectivity is high, side reactions are few, and the application range of electrochemistry in explosive synthesis is widened.

The invention discloses a composite powder explosion suppressant for suppressing aluminum hydride dust explosion and a preparation method thereof, belongs to the technical field of explosion suppressants, and solves the prominent problems that the superfine powder of the explosion suppressant is easy to agglomerate, key components are easy to absorb moisture to cause performance degradation, the synergistic effect between active components and a carrier is weak and the like. According to the solution, the composite powder explosion suppressant comprises the following components in parts by weight: 100 parts of fly ash, 1-5 parts of a silane coupling agent, 3-5 parts of phytic acid and 2-4 parts of urea. The preparation method comprises two stages of fly ash modification (calcination, acid washing, alkali washing and silane coupling modification) and in-situ construction of a core-shell structure (precursor solution preparation, in-situ cross-linking reaction and post-treatment). Various explosion suppression mechanisms such as gas phase dilution, chemical quenching, physical isolation, heat sink cooling and the like are accurately integrated and optimized in time and space, a set of efficient and reliable three-dimensional suppression system aiming at aluminum hydride dust explosion characteristics is formed, and excellent explosion suppression performance is shown.

The invention describes a process for producing soluble salts of 5,5-azotetrazole (5,5-AT) by oxidation of 5-aminotetrazole with a soluble peroxodisulfate in a strongly alkaline environment. This compound is a precursor of the energetic component of non-toxic priming mixtures, 5,5- bis-hydrazino-tetrazole (BTH). BTH can be prepared by reduction of salts or solutions of 5,5-AT with ascorbic acid. 5,5-AT

The invention discloses a high-stability laser micro-propulsion material resistant to environmental storage and exposure as well as preparation and application of the high-stability laser micro-propulsion material. The material is a copper-iron bimetal organic framework material, the molar ratio of a copper element to an iron element is (4: 1)-(20: 1), and an organic ligand is an aromatic polycarboxylic acid ligand; the retention rate of the laser ablation efficiency eta is not lower than 70% after the laser ablation material is stored in an air or water environment for 5-7 days. The preparation method of the material comprises the steps of reaction of copper salt, iron salt and organic ligand in a solvent, solvent replacement and drying, and is mild in process and low in cost. The Cu-Fe bimetallic nodes are constructed and the proportion of the Cu-Fe bimetallic nodes is regulated and controlled, so that the structural stability and the laser ablation performance of the material are synergistically improved, the key problem that the performance of an existing propellant is degraded under the exposure of a humid and water environment is solved, and stable and reliable thrust can still be output after long-term storage or accidental exposure; the method has an important application prospect in a micro-nano satellite propulsion system.

The invention describes a process for producing soluble salts of 5,5-azotetrazole (5,5-AT) by oxidation of 5-aminotetrazole with a soluble peroxodisulfate in a strongly alkaline environment. This compound is a precursor of the energetic component of non-toxic priming mixtures, 5,5- bis-hydrazino-tetrazole (BTH). BTH can be prepared by reduction of salts or solutions of 5,5-AT with ascorbic acid. 5,5-AT

The invention discloses a novel ionic self-assembly energetic compound ABX3, a synthesis method thereof and application of the novel ionic self-assembly energetic compound ABX3 in a heat-resistant energetic material. The invention provides a novel ionic self-assembled energetic compound with good thermal stability and excellent detonation performance. According to the synthesis method of the energetic compound, the 1-fluoro-4-methyl-1, 4-diazabicyclo [2.2. 2] octane tetrafluoroborate, the perchloric acid and the corresponding halide or the perhalide are directly added into the deionized water to be synthesized through a one-pot method, the raw materials are cheap and easy to obtain, the reaction route is simple, and the reaction conditions are mild. The sodium-containing and potassium-containing compounds can be used for heat-resistant gunpowder, the rubidium-containing and cesium-containing compounds can be used for heat-resistant primary explosives, and the hydrazine-containing and ammonium-containing compounds can be used for heat-resistant explosives.

The present invention discloses a 1,2,3-triazole ion salt, a preparation method thereof, and uses thereof. The present invention provides a triazole compound ion salt represented by Formula III-S-1 or III-S-2. The 1,2,3-triazole ion salt provided by the present invention has one or more advantages including high nitrogen content, high detonation velocity, high energy, high impact sensitivity, and high safety. It can be used in high-energy explosives, gas generators, and solid propellants. The preparation method of the 1,2,3-triazole ion salt provided by the present invention has a short route and high yield. #imgabs0#

The present invention discloses a method for preparing polymeric nitrogen materials with high yield and the polymeric nitrogen materials, belonging to the technical field of energetic materials, and is used to solve one of the following technical problems: (1) In the prior art, the method for synthesizing cg-PN requires relatively high pressure, harsh conditions and is not easy to achieve; (2) The content of cg-PN synthesized in the prior art is relatively low; (3) The cg-PN synthesized in the prior art cannot stably exist under normal pressure. The method for preparing polymeric nitrogen materials with high yield includes: mixing an azide precursor, carbon nanotubes or a carbon nanotube film with a liquid to obtain a mixture, and heating, holding and cooling the mixture in a low-vacuum environment to obtain the polymeric nitrogen materials, wherein the mass of the carbon nanotubes or the carbon nanotube film is 1% to 100% of the azide precursor. The preparation method of the present invention can reduce the synthesis pressure to obtain polymeric nitrogen materials, the method is simple, and the yield of the polymeric nitrogen materials is high.

The invention discloses a preparation method of an ammonium perchlorate micron particle self-assembled membrane, which comprises the following steps: firstly, dissolving ammonium perchlorate in a solvent at room temperature to form an ammonium perchlorate saturated solution; then, adding a benzene series separant into the ammonium perchlorate saturated solution to form an incompatible system in which the separant is positioned at the upper part and the ammonium perchlorate solution is positioned at the lower part; then slowly adding an ester anti-solvent into the incompatible system, and keeping the interface of the separant and the ammonium perchlorate solution stable in the adding process; and finally, after standing for a period of time, washing a recrystallization product with an anti-solvent, and drying to obtain the ammonium perchlorate micron particle self-assembled membrane. The invention provides the preparation method of the ammonium perchlorate micron particle self-assembled membrane, and the method is simple and convenient to operate, good in stability, good in repeatability, high in yield and suitable for large-scale production of the ammonium perchlorate micron particle self-assembled membrane.

The invention discloses a hexogen reaction liquid PH value intelligent adjusting device and an adjusting method thereof, and belongs to the technical field of hexogen preparation, the novel equipment comprises a bottom plate, a mounting rack, an adjusting barrel and two metering barrels, the mounting rack and the adjusting barrel are mounted on the bottom plate at intervals, the two metering barrels are fixedly arranged in the middle of the mounting rack at intervals, and the adjusting barrel is arranged in the middle of the mounting rack; the two metering barrels are both communicated with the adjusting barrel; liquid level plates and electric telescopic rods are arranged in the two metering buckets, the liquid level plates are arranged in the metering buckets in a sliding mode, feeding pipe openings and overflow pipe openings are formed in the liquid level plates in a spaced mode, and by arranging the liquid level plates and other components, when liquid in the metering buckets makes contact with the liquid level plates, liquid outlet pipe openings are closed, and in the process of closing the liquid outlet pipe openings, the liquid outlet pipe openings are closed; some adjusting solutions still enter the metering barrel due to inertia, and at the moment, redundant adjusting solutions can enter the overflow box through the overflow pipe orifice to be temporarily stored, so that the situation that the redundant adjusting solutions flow into the adjusting barrel to affect the PH value of the adjusted reaction solution can be avoided.

The application belongs to the field of synthesis of organic high-energy compounds, and particularly relates to two novel polynitro-pyrene energetic compounds and a synthesis method and application thereof. The two novel polynitro-pyrene energetic compounds are 1,2,3,6,8-pentanitro-pyrene (PNP) and 1,2,3,6,7,8-hexanitro-pyrene (HNP) respectively. The synthesis method is to use pyrene as a starting material, and to react with a nitration reagent under heating conditions to efficiently synthesize PNP and HNP in one step. PNP and HNP have significant application potential as high-energy explosives or energetic components. In addition, the polynitro-pyrene energetic molecules can also be applied to lithium primary batteries as positive active materials. The theoretical specific capacity of PNP and HNP is up to 1883 mAh g ‑1 and 2044 mAh g ‑1 , which is the highest level of all reported primary battery positive materials.

Production of acetone peroxide (TATP) with permission according to § 7 SprengG for the conditioning and training of explosive detection dogs (SSH) characterized by the fact that the TATP is synthesized, filtered and portioned in different quantities on site, in the respective training facility.

The invention discloses a drug-loaded ethanol gel RDX-based composite explosive as well as a preparation method and application thereof. The composite explosive is prepared from the following raw materials: cyclotrimethylene trinitramine (RDX), methyl cellulose (MC), ethanol, deionized water and a dispersing agent. Wherein the MC-ethanol gel is used as a'carrier ', the RDX is used as a'main drug', a'solution blending-gel method 'is adopted, RDX-ethanol slurry is added into the methyl cellulose-ethanol gel, and after stirring or shearing dispersion, the drug-loaded MC-ethanol gel RDX-based composite explosive is prepared, and the drug-loaded MC-ethanol gel RDX-based composite explosive shows a remarkable shear thinning behavior and a rapid structure recovery capability; compared with a traditional mechanical dry mixing method, the RDX-based composite explosive prepared through the method has the advantages that RDX crystals in the RDX-based composite explosive are evenly coated with a gel network, interface bonding is tight, micro-nano-scale uniform dispersion and coating of RDX in a binder can be effectively achieved, mechanical sensitivity is remarkably reduced, and meanwhile good detonation performance is kept.