CL-20 Evaporative Crystallization under Reduced Pressure

Paweł Maksimowski , Tchórznicki Paweł


The 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.
Author Paweł Maksimowski (FC / DH-EM)
Paweł Maksimowski,,
- Department Of High-Energetic Materials
, Tchórznicki Paweł (FC / DH-EM)
Tchórznicki Paweł,,
- Department Of High-Energetic Materials
Journal seriesPropellants, Explosives, Pyrotechnics, ISSN 0721-3115
Issue year2016
Publication size in sheets0.5
Keywords in EnglishSolvent evaporation, e-CL-20, Evaporative crystallization, Reduced sensitivity, Shape and size of crystals
ASJC Classification1500 General Chemical Engineering; 1600 General Chemistry
Languageen angielski
wdpb_publikacje_pliki_plik_publikacja_2734_org.pdf 1.05 MB
Score (nominal)25
Score sourcejournalList
ScoreMinisterial score = 25.0, 01-02-2020, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 01-02-2020, ArticleFromJournal
Publication indicators Scopus Citations = 5; WoS Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.247; WoS Impact Factor: 2016 = 1.908 (2) - 2016=1.913 (5)
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