专利号:US-2003089435-A1 优先权日:2000-03-23 标题:Method of synthesizing diglycerol tetranitrate, and solid rocket motor propellant containing the same 发明人:SANDERSON ANDREW J; MARTINS LAURA J 摘要:Diglyercol tetranitrate is an energetic nitrate ester plasticizer having no freezing point, making the nitrate ester plasticizer especially suited for use in solid rocket motor propellants that are subjected to low temperature storage and operational environments, which can reach as low as −54° C. in temperature. In order to avoid problems associated with fume-off that characterize the conventional synthesis method of making diglycerol tetranitrate, synthesis is performed in a medium including a mixed acid phase and an inert organic phase. The mixed acid phase contains, as ingredients, at least one nitronium ion source and at least one acid having sufficient strength to generate nitronium ions from the nitronium ion source. The nitronium ions in the mixed acid nitrate diglycerol to form diglycerol tetranitrate, which is then received into the organic liquid. The organic liquid, which preferably is a chlorocarbon such as dichloromethane, is insoluble with diglycerol but soluble with diglycerol tetranitrate. The inert organic phase is then treated to neutralize any acid contained in the inert organic phase, and the diglycerol tetranitrate is separated from the inert organic phase.
专利号:WO-2023001318-A1 优先权日:2021-07-22 标 题 :Apparatus and method for acoustic resonance enhanced chemical reaction 发明人:CHEN SONG; LIAN PENG; ZHANG SHENGLONG; WANG XIJIE; ZHANG ZHE; KANG CHAO; ZHANG YAOXUAN; MA NING 权利人:XIAN MODERN CHEMISTRY RES INST 摘要:Disclosed in the present invention is a method for an acoustic resonance enhanced chemical reaction, comprising: step 1, adding reaction material components into a reactor, the reactor being fixed on an acoustic resonance reaction platform; step 2, by means of the phase difference, adjusting the acceleration G of the acoustic resonance reaction platform, and performing frequency sweep in the low frequency range to determine that the frequency corresponding to peak value acceleration G is the resonance frequency; step 3, reacting the reaction material components under the conditions of the resonance frequency and a set acceleration G1, and sequentially filtering, and drying, and heat drying the suspension obtained from the reaction, so as to obtain a reaction product; wherein the acceleration G and the acceleration G1 are all fixed values, the value range is 1g ≤ G ≤ 90g, 1g ≤ G1 ≤ 90g, G is the gravity acceleration, and the value is 9.8 m/s 2 . The method in the present invention is suitable for various reaction systems including gas-liquid, liquid-liquid, solid-liquid and heat-release systems, has mild reaction conditions, and is particularly suitable for the synthesis of dangerous chemicals with high sensitivity to mechanical stimulation.
专利号:CN-105037274-A 优先权日:2015-07-14 标题 :A kind of method for continuous synthesis of benzimidazole compounds
专利号:CN-1249024-C 优先权日:1999-06-28 标题 :Intermediate for synthesis of benzimidazole compound and process for producing the same
专利号:CN-101223157-B 优先权日:2005-05-17 标 题 :Process for the synthesis of heterocyclic compounds
专利号:CN-101687779-A 优先权日:2007-07-02 标 题:Process for the synthesis of carbamates using CO2
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合成参考文献
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