| 重结晶制备奥克托今（HMX）粒径及晶形的研究 |
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| 引用本文： | 马东旭,梁逸群,张景林.重结晶制备奥克托今（HMX）粒径及晶形的研究[J].西北轻工业学院学报,2009,27(1):54-57. |
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| 作者姓名： | 马东旭 梁逸群 张景林 |
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| 作者单位： | 中北大学化工与环境学院,山西,太原,030051
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| 摘 要： | 采用溶剂-非溶剂重结晶法制备出奥克托今（HMX）并对其粒径及晶形进行了研究，通过单一改变溶剂、温度、溶剂-非溶剂混合速率和搅拌速度研究了HMX重结晶过程中的动力学行为．实验表明：在25℃时，用二甲亚砜（DMSO）作溶剂，非溶剂与溶剂质量比为100：1，将两者迅速混合所结晶出的HMX晶体平均粒径为462nm，且其分布均匀呈短柱状团聚；用丙酮作溶剂时，结晶不均匀多呈长条状；用68wt％硝酸作溶剂时，结晶呈立方块状．
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| 关 键 词： | 奥克托今(HMX) 重结晶 溶剂-非溶剂 粒径 晶形 |
STUDY ON PARTICLE SIZE AND CRYSTAL FORM OF HMX PREPARED BY RE-CRYSTALLIZATION |
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| MA Dong-xu,LIANG Yi-qun,ZHANG Jing-lin.STUDY ON PARTICLE SIZE AND CRYSTAL FORM OF HMX PREPARED BY RE-CRYSTALLIZATION[J].Journal of Northwest University of Light Industry,2009,27(1):54-57. |
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| Authors: | MA Dong-xu LIANG Yi-qun ZHANG Jing-lin |
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| Affiliation: | (School of Chemical Industry and Ecology, North University of China, Taiyuan 030051,China) |
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| Abstract: | The particle size and crystal form of HMX prepared by re-crystallization using solvent-nonsolvent method was studied. The kinetics behaviors of HMX re-crystallization were studied by respectively changing solvents, temperatures, mixture speeds of solvent and nonsolvent and the stirring speed. The experimental results show. when dimethyl sulfoxide is selected as solvent, the mean diameter of HMX is 462 nm and its pattern appears short column crystal aggregate which is acquired at these conditions, temperature keeping at 25 ℃, the weight ratio between solvent and non-solvent is 100 ： 1, and solvent is diluted rapidly; when acetone is used as solvent, the crystal is non-homogeneous and majority appears long strips; while 68 wt% nitric acid as solvent, the crystal appears cube-like blocks. |
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| Keywords: | HMX re-crystallization solvent-nonsolvent particle size crystal form |
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