基于绿色低共熔溶剂CS-1的TATB新型纯化方法与机理OA北大核心CSTPCD
The Method and Mechanism of TATB Purification Based on Green Solvent
为了解决TATB因溶解性差不适用于常规纯化方法的问题,采用反萃取技术,选用对TATB具有良好溶解性的新型绿色低共熔溶剂(CS-1),以水为反萃取剂,进行了TATB的纯化;对比了该法与其它纯化方法的不同,系统优化了该法中反萃取剂加入量、洗涤次数及干燥方式等条件对TATB的纯化影响,构建了纯度为(99.7±0.2)%,回收率为92.5%的TATB高效分离与绿色纯化方法.研究同时采用光谱过程监测和理论计算模拟,基于CS-1溶剂的TATB纯化动力学,探讨了基于氢键竞争和络合物解离的TATB纯化机制.
Traditional methods are difficult for the purification of TATB due to its poor solubility.Green deep eutectic solvent(CS-1)displays good solubility toward TATB,so CS-1 was used as the solvent with water as back extractant to develop a new purification method for TATB in this study.The difference between this method and other methods were investigated for the puri-fication of TATB.Purification conditions including the amount of back extractant,washing times and drying methods were com-prehensively optimized to improve the purity of TATB.Finally,a new method has been established for highly efficient separation and green purification of TATB.Through this method,high-purity TATB was obtained with the purity of(99.7±0.2)%and good recovery of 92.5%.Further,spectroscopic monitoring was combined with theoretical simulation to study the kinetics of the purifi-cation of TATB,and then a purification mechanism has been proposed,which is based on the dissociation of TATB's complexes through the competition of hydrogen bonding between CS-1 and water.
左依文;陈建波;刘晓峰;刘渝;索志荣
西南科技大学材料与化学学院,四川 绵阳 621010中国工程物理研究院化工材料研究所,四川 绵阳62199
武器工业
1,3,5-三氨基-2,4,6-三硝基苯CS-1溶剂反萃取技术纯化机制
1,3,5-triamino-2,4,6-trinitrobenzeneCS-1 solventback-extractionpurification mechanism
《含能材料》 2024 (007)
745-753 / 9
国家自然科学基金(22275176),中物院创新发展基金(CX20210028) National Natural Science Foundation of China(No.22275176),Innovation&Development Fund of CAEP(No.CX20210028)
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