Formation of Spherical Agglomerates in Cooling Crystallization of Hexahydro-1,3,5-trinitro-1,3,5-triazine
| Autor: | Hyoun-Soo Kim, Kee-Kahb Koo, Jae-Kyeong Kim, Jae-Eun Lee |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Chemical Engineering Induction period Nucleation Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Industrial and Manufacturing Engineering law.invention chemistry.chemical_compound law Acetone medicine Crystallization Number density Polyvinylpyrrolidone Economies of agglomeration General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering Agglomerate 0210 nano-technology medicine.drug |
| Zdroj: | Chemical Engineering & Technology. 40:2197-2203 |
| ISSN: | 0930-7516 |
| DOI: | 10.1002/ceat.201700144 |
| Popis: | The present work describes the production of spherical agglomerates of Hexahydro-1,3,5-trinitro-1,3,5-triazine(RDX) from acetone by cooling crystallization with polyvinylpyrrolidone (PVP). It was found that PVP suppresses the nucleation of RDX at initial stage, but tremendous nucleation of RDX is occurred abruptly after induction period. The rapid nucleation may be associated with the primary nucleation by the presence of PVP. Thus, it can be concluded that the addition of PVP results in the formation of RDX particles with sufficient number density for spherical agglomeration. It was found that such spherical agglomeration propagates very rapidly after nucleation within a minute and size of spherical agglomerates is affected by cooling rate. |
| Databáze: | OpenAIRE |
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