Process of crystallizing 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12,-hexaazatetracyclo [5.5.0.0.5,903,11]- dodecane
원문보기
IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0991432
(1997-12-16)
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발명자
/ 주소 |
- Johnston Harold Eugene
- Wardle Robert B.
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| 출원인 / 주소 |
- Cordant Technologies Inc.
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| 대리인 / 주소 |
Pillsbury Madison & Sutro LLP
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| 인용정보 |
피인용 횟수 :
17 인용 특허 :
11 |
초록
▼
A process of crystallizing CL-20 is disclosed. In the process, a wet CL-20 solvent/CL-20 solution is dried by azeotropic distillation of a CL-20 solvent/water azeotrope. Removal of water from the CL-20 solution permits crystallization of high density CL-20. A low density, CL-20 non-solvent is added
A process of crystallizing CL-20 is disclosed. In the process, a wet CL-20 solvent/CL-20 solution is dried by azeotropic distillation of a CL-20 solvent/water azeotrope. Removal of water from the CL-20 solution permits crystallization of high density CL-20. A low density, CL-20 non-solvent is added to the resulting dry CL-20 solvent/CL-20 solution to cause precipitation of .epsilon.-polymorph CL-20. The CL-20 crystals are separated from the non-solvent and the solvent by adding sufficient water to displace the non-solvent and the solvent from the surface of the CL-20 crystals. In this fashion, the .epsilon.-polymorph CL-20 is made wet for later handling, packaging, and shipping.
대표청구항
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[ What is claimed is:] [1.] A process of crystallizing .epsilon.-polymorph CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0.sup.5,9 0.sup.3,11 ]-dodecane) comprising the steps of:(a) drying a wet CL-20 solvent solution containing a quantity of CL-20 dissolved therein, thereby f
[ What is claimed is:] [1.] A process of crystallizing .epsilon.-polymorph CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0.sup.5,9 0.sup.3,11 ]-dodecane) comprising the steps of:(a) drying a wet CL-20 solvent solution containing a quantity of CL-20 dissolved therein, thereby forming a dry solvent solution containing the CL-20, wherein solubility of CL-20 in the solvent is greater than 20% weight/volume (g/ml);(b) adding a low density, CL-20 non-solvent to the dry solvent solution to cause precipitation of .epsilon.-polymorph CL-20 crystals, wherein the solubility of CL-20 in the non-solvent is less than 1% weight/volume (g/ml); and(c) separating the precipitated .epsilon.-polymorph CL-20 crystals from the non-solvent and the solvent by adding a sufficient quantity of a polar dense solvent to displace the non-solvent and the solvent from the surface of the .epsilon.-polymorph CL-20 crystals.
이 특허에 인용된 특허 (11)
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Fels Gregor (Haltern DEX) Ewald Gerhard (Haltern DEX), Apparatus for reduction of the grain size of crystalline explosive.
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Nielsen Arnold T. (Santa Barbara CA), Caged polynitramine compound.
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Svensson Leif (Karlskoga SEX) Nyqvist Jan-Olof (Karlskoga SEX) Westling Lars (Stengungssund SEX), Crystallization method for HMX and RDX.
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Levinthal Michael L. (Marshall TX), Crystallization of beta HMX.
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Schmitt William J., Finely divided solid crystalline powders via precipitation into an anti-solvent.
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Felder Ernst (Rive S. Vitale CHX) Musu Carlo (Milan ITX) Fumagalli Luciano (Milan ITX) Uggeri Fulvio (Milan ITX), Macrocyclic chelating agents and chelates thereof.
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Heinemeyer Klaus (Leverkusen DEX) Redecker Klaus (Nuremberg DEX) Sassmannshausen Ulrich (Bruhl DEX), Process for producing fine-grained
b
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