CL-20 Evaporative Crystallization under Reduced Pressure
Paweł Maksimowski , Tchórznicki Paweł
AbstractThe effect of parameters of the CL-20 crystallization process carried out by solvent removal by evaporation in vacuo on shape, polymorph type, crystal size, and on their shock sensitivity was studied. The CL-20 crystallization process by this technique was shown to allow a precise control of the crystallization process parameters and of the process run. The o-xylene/ ethyl acetate system proved to be highly effective. Selecting suitable values of the parameters such as: pressure, process time, temperature, stirring rate, CL-20 crystals were obtained in the e form (even with no need for inoculation of the crystallization system with polymorph e seeds) and of the shape close to a spherical one. The crystal growth modifiers added allowed to additionally control the shape and size of the CL-20 crystals formed and to produce crystals of reduced impact and friction sensitivity.
|Journal series||Propellants, Explosives, Pyrotechnics, ISSN 0721-3115|
|Publication size in sheets||0.5|
|Keywords in English||Solvent evaporation, e-CL-20, Evaporative crystallization, Reduced sensitivity, Shape and size of crystals|
|Score|| = 25.0, 28-11-2017, ArticleFromJournal|
= 25.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2016 = 1.908 (2) - 2016=1.913 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.