五氧化二氮中的四氧化二氮含量控制研究
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摘要
五氧化二氮作为一种绿色硝化剂,容易分解为四氧化二氮和氧气。其中四氧化二氮对硝化反应有负面影响,降低其在硝化体系中的含量有着极其重要的意义。在不同温度下,选用不用溶剂的五氧化二氮溶液,在不同流速下通入臭氧气体,控制五氧化二氮中四氧化二氮的含量<1%,五氧化二氮纯度最高可达98.1%,达到纯化五氧化二氮的目的。
As a green nitrating agent,dinitrogen pentoxide tends to decompose and form dinitrogen tetroxide and oxygen. Since dinitrogen tetroxide has negative effect on nitrating reaction,reducing its content in nitrating system is of great significance. The purification of dinitrogen pentoxide was investigated at different temperature with different kinds of dinitrogen pentoxide solution. The influence of ozone flow rates on the purification process was investigated. Dinitrogen tetroxide in dinitrogen pentoxide was reduced to less than 1% and the highest purity of dinitrogen pentoxide was up to 98. 1%.
As a green nitrating agent,dinitrogen pentoxide tends to decompose and form dinitrogen tetroxide and oxygen. Since dinitrogen tetroxide has negative effect on nitrating reaction,reducing its content in nitrating system is of great significance. The purification of dinitrogen pentoxide was investigated at different temperature with different kinds of dinitrogen pentoxide solution. The influence of ozone flow rates on the purification process was investigated. Dinitrogen tetroxide in dinitrogen pentoxide was reduced to less than 1% and the highest purity of dinitrogen pentoxide was up to 98. 1%.
引文
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[9]何志勇,罗军,吕春绪.绿色硝化剂N2O5的制备方法及其应用进展[J].火炸药学报,2010,23(1):1-5.
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[11]DEVENDORF T E,STACY J R.Pilot-plant-scale continuous manufacturing of solid dinitrogen pentoxide[J].ACS Symp.Ser.,1996,623:68-72.
[12]张静,王莅,苏敏,等.四氧化二氮-五氧化二氮-硝酸体系组成的分析[J].分析化学,2006,34(5):741.
[13]张士国,刘明.四氧化二氮结构与性质研究[J].滨州学院学报,2005,21(6):78-82.
[2]吴强,谢洪涛,袁伟,等.硝酸脂绿色硝化工艺研究进展[J].化学推进剂与高分子材料,2004,2(3):5-10.
[3]曹端林,曹明保,李永祥.绿色硝解技术合成RDX酮[J].火炸药学报,2004,27(1):12-15.
[4]黄卫华.硝化剂五氧化二氮的合成与放大[J].上海航天,2003,20(2):56-59.
[5]韩珺,孙莲萍.绿色硝化剂N205的制备及其在含能材料合成中的应用研究进展[J].化学推进剂与高分子材料,2010,8(6):35-41.
[6]钱华,吕春绪,叶志文.绿色硝化剂五氧化二氮及其在硝化中的应用[J].精细化工,2006,23(6):620-624.
[7]任永利,王莅,米镇涛.清洁硝化工艺的研究与发展[J].含能材料,2003,11(1):50-54.
[8]葛忠学,李高明,洪峰,等.绿色硝化技术合成HMX的小试工艺研究[J].火炸药学报,2002,25(1):45-47.
[9]何志勇,罗军,吕春绪.绿色硝化剂N2O5的制备方法及其应用进展[J].火炸药学报,2010,23(1):1-5.
[10]吕春绪.硝化理论[M].江苏:科学技术出版社,1993.
[11]DEVENDORF T E,STACY J R.Pilot-plant-scale continuous manufacturing of solid dinitrogen pentoxide[J].ACS Symp.Ser.,1996,623:68-72.
[12]张静,王莅,苏敏,等.四氧化二氮-五氧化二氮-硝酸体系组成的分析[J].分析化学,2006,34(5):741.
[13]张士国,刘明.四氧化二氮结构与性质研究[J].滨州学院学报,2005,21(6):78-82.