6 results about "TATB" patented technology

The invention relates to a toluene solvent recovery method in chlorine-containing triaminotrinitrobenzene production. The method comprises the following steps: washing mother liquor obtained after TATB production with water, wherein the content of removed inorganic chlorine is less than or equal to 2.15 mg / kg; carrying out activated carbon and molecular sieve adsorption operation on the washed feed liquid, wherein the content of removed organic chlorine is less than or equal to 4.95 g / kg; pumping the material adsorbed by the molecular sieve into a reduced-pressure vacuum continuous rectifying tower to separate methylbenzene from solute; connecting a tower kettle material stream to a filter to filter out solid from residual liquid obtained from the tower kettle of the rectifying tower, and enabling filtrate to flow back to the vacuum tower again through a circulating pump; and the high-purity toluene solvent obtained at the top of the rectifying tower is recycled and continuously used. According to the recovery method provided by the invention, an intermittent feeding mode is adopted, so that the purity of the recovered solvent can be effectively improved. And the dechlorination efficiency reaches 78-80%. And meanwhile, the solvent is recovered in a vacuum distillation manner, so that the energy consumption required by solvent recovery can be reduced, and the requirements of energy conservation and consumption reduction are met.

The invention discloses a method for high and low temperature gradient dissolution of hydrogen-bond-rich explosives, and belongs to the field of TATB application. The method sequentially comprises the following steps: preparing a tetrabutylammonium fluoride / aqueous solution, namely a deep eutectic solvent A, with the molar ratio of 10: 0.5-10: 1.5; the method comprises the following steps: adding excessive TATB powder into a deep-eutectic solvent A, stirring at room temperature, and heating to the boiling point of water in stages; and measuring the TATB content at each section of temperature, and converting the TATB content into the solubility of the TATB at different temperatures. According to the method provided by the invention, gradient dissolution of the TATB at high and low temperatures can be realized, the solubility of the TATB at the high temperature is more than two times that of the TATB at the low temperature, the high and low temperature solubility difference (delta S) reaches 70mg / mL, a solvent solution can be provided for cooling recrystallization of the TATB, and the method has important application value in weapon systems. In addition, the invention further discloses application of the method for high and low temperature gradient dissolution of the hydrogen-bond-rich explosive in a weapon system.

The invention relates to the technical field of material crushing devices, aims to solve the problem that in the prior art, a device for pre-crushing large materials obtained after TATB-based explosives are kneaded is lacked, and provides a pre-crushing treatment device for TATB-based explosive kneading granulation materials, the pre-crushing treatment device comprises a rack, and a crushing bin and a lifting mechanism are installed on the rack; a crushing stirring shaft is arranged in the crushing bin, one end of the crushing stirring shaft is connected with a stirring driving device, the stirring driving device is used for driving the crushing stirring shaft to rotate, and the other end of the crushing stirring shaft is connected with a crushing paddle; the crushing and stirring shaft is connected with a spiral blade; the lifting mechanism is connected with the stirring driving device and can drive the stirring driving device and the crushing stirring shaft to lift together; the pre-crushing treatment device can be used for pre-crushing large-block materials after kneading of TATB-based explosives, the crushing range is large, the crushing effect and efficiency are high, the materials are granulated after being crushed, and normal proceeding of the granulating process is facilitated.

The invention discloses a preparation method of a low-chlorine TATB crystal with a uniform pore structure, which comprises the following steps: dissolving crude TCTNB in toluene, and filtering to remove toluene insoluble substances to obtain a TCTNB solution; introducing nitrogen to discharge air in the reactor, transferring the TCTNB solution into the reactor, adding deionized water, sealing and heating, then introducing ammonia gas for reaction, cooling to room temperature after the reaction is completed, and filtering to obtain crude TATB; adding the crude TATB into hot water, and carrying out ultrasonic dispersion to obtain a suspension; and carrying out ultrasonic-assisted boiling washing on the suspension, filtering, alternately washing with acetone and hot water, and drying to obtain the low-chlorine TATB crystal with a uniform pore structure. The pore size of the TATB crystal obtained by the preparation method provided by the invention is concentrated in the range of 60-100 nm, the position distribution is uniform, and the chlorine content is less than or equal to 0.35%. The method is simple in technological process, mild in condition and suitable for industrial preparation of high-quality insensitive explosives for nuclear weapons and conventional weapons, and has both safety and magnification.

A method for preparing spherical TATB-based explosives based on TNT as a binder comprises the following steps: adding a surfactant to water, heating and stirring to obtain an aqueous dispersion; heating the binder in a water bath to melt, adding TATB and stirring until uniform, obtaining a mixture, then adding the mixture to the aqueous dispersion, continuing to stir until stable, then stopping heating, gradually cooling, and cooling to room temperature; filtering, washing, and drying to obtain spherical TATB-based explosives. The process flow is simple, the preparation cost is low, and the environment is friendly; the particle size of the obtained TATB-based explosives is 200-1500 mu m, the particle size distribution is concentrated, the flowability is excellent, the crystal structure remains unchanged, the compatibility of TNT and TATB is good, the thermal decomposition performance is stable, and at the same time, the energy component TNT is used as a binder, which effectively avoids the reduction of the energy density of the system, providing a new technical path for the engineering preparation and application of TATB-based explosives.

The invention discloses a high-energy super-heat-resistant explosive and a synthesis method thereof. The high-energy super-heat-resistant explosive is characterized in that the high-energy super-heat-resistant explosive is N2-(5-amino-4-nitro-1H-pyrazole-3-yl)-N6-(3-amino-4-nitro-1H-pyrazole-5-yl)-3, 5-dinitropyridine-2, 4, 6-triamine, and 2, 6-dichloro-3, 5-dinitropyridine-4-amine and 4-nitro-1H-pyrazole-3, 5-diamine are subjected to a substitution reaction, so that the high-energy super-heat-resistant explosive is obtained. The UH-1 shows the highest detonation velocity which can reach 8889 m s <-1 > as the super-heat-resistant explosive, meanwhile, the comprehensive performance of the UH-1 is superior to that of a classic super-heat-resistant explosive TATB, and the UH-1 has the application potential of replacing heat-resistant explosives TATB and HNS.