| Titre : | Synthesis and kinetics of highly energetic intermediates by micromixers : direct multistep synthesis of sodium nitrotetrazolate (2010) |
| Auteurs : | Nikolay Zaborenko, Auteur ; Edward R. Murphy, Auteur ; Jason G. Kralj, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 9, Mai 2010) |
| Article en page(s) : | pp. 4132–4139 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Kinetics Micromixers |
| Résumé : | A modular silicon micromixer is designed and fabricated for high-flow rapid mixing at a wide range of reaction conditions. The mixer operates by splitting two inlet flows into a large number of channels, interdigitating them, and constricting the laminated flow to create submicrometer diffusion lengths. Mixing is quantified using the Villermaux−Dushman method, with UV−vis detection of the photoactive species, and compared against a commercial micromixer. Micromixers and tubing are then used to perform a quantitative kinetic study of the direct two-step synthesis of sodium nitrotetrazolate (NaNT) by a Sandmeyer type reaction via a reactive diazonium intermediate. Orders of reactions and temperature dependence of both steps, as well as pH and ionic strength dependence of the second step, are evaluated. Successful production of 4.4 g/h of NaNT in solution is ultimately achieved in a compact footprint using the kinetic data, verifying the potential for scaling to typical production amounts. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie100263p |
