发明名称 |
High temperature crystallization of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,903,11]-dodecane |
摘要 |
A method of crystallizing an epsilon-polymorph of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0<SUP>5,9</SUP>0<SUP>3,11</SUP>]-dodecane (CL-20). The method comprises combining the CL-20, at least one organic solvent, and at least one nonsolvent to form a crystallization solution. The crystallization solution is saturated and heated to a temperature greater than about 60° C., such as from about 71° C. to about 94° C. The organic solvent is removed from the crystallization solution while retaining a sufficient amount of the nonsolvent to crystallize the CL-20 as the epsilon-polymorph. The nonsolvent is separated from the epsilon-polymorph of CL-20. A composition of CL-20 comprising the epsilon-polymorph having a particle density of 2.035 g/ml is also disclosed.
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申请公布号 |
US7288648(B2) |
申请公布日期 |
2007.10.30 |
申请号 |
US20030636373 |
申请日期 |
2003.08.06 |
申请人 |
ALLIANT TECHSYSTEMS INC. |
发明人 |
HAMILTON R. SCOTT;MANCINI VINCENT;NELSON CLINT;DRESSEN SHARON YEUNG |
分类号 |
C07D487/22;C06B25/34;C07B45/00 |
主分类号 |
C07D487/22 |
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