Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Dominik Weis"'
Publikováno v:
Powders, Vol 3, Iss 3, Pp 324-337 (2024)
The characteristics of powders on a bulk scale are heavily influenced by both the material properties and the size of their primary particles. Throughout the stages of storage and transportation in the powder processing industry, various forms of def
Externí odkaz:
https://doaj.org/article/ca666e76d6514f6fbac0d8756fa26280
Publikováno v:
Powder Technology. 378:667-679
In the production process of pharmaceutical pellets with a narrow size distribution and a high sphericity, a combined extrusion-spheronization technique is frequently used. The rounding of the wet cylindrical extrudates in the spheronizer after the e
Autor:
Siegfried R. Waldvogel, Till Opatz, Georg Steinkellner, Margit Winkler, Helmut Schwab, Karl Gruber, Alexander M. Nauth, Urska Pogorevcnik, Birgit Grill, Kai Donsbach, Sebastian Arndt, Dominik Weis
Publikováno v:
Green Chemistry. 23:388-395
Levetiracetam is an active pharmaceutical ingredient widely used to treat epilepsy. We describe a new synthesis of levetiracetam by a dynamic kinetic resolution and a ruthenium-catalysed ex-cell anodic oxidation. For the enzymatic resolution, we tail
Publikováno v:
Angewandte Chemie. 132:8112-8118
Autor:
Vasyl Skorych, Moritz Buchholz, Maksym Dosta, Helene Katharina Baust, Marco Gleiß, Johannes Haus, Dominik Weis, Simon Hammerich, Gregor Kiedorf, Norbert Asprion, Hermann Nirschl, Frank Kleine Jäger, Stefan Heinrich
Publikováno v:
Processes; Volume 10; Issue 10; Pages: 2140
Processes, 10 (10), Art.-Nr.: 2140
Processes 10 (10): 2140 (2022)
Processes, 10 (10), Art.-Nr.: 2140
Processes 10 (10): 2140 (2022)
The production of catalysts such as zeolites is a complex multiscale and multi-step process. Various material properties, such as particle size or moisture content, as well as operating parameters—e.g., temperature or amount and composition of inpu
Publikováno v:
Advanced Powder Technology. 30:2492-2502
Spherical pharmaceutical pellets are commonly produced by an extrusion-spheronization process. In the spheronizer, the wet cylindrical extrudates are rounded into spheres due to multiple collisions. In order to model this rounding, a suitable contact
Autor:
Isabell Behrendt, Sergiy Antonyuk, Paul Breuninger, Fabian Krull, Philipp Grohn, Dominik Weis
Publikováno v:
Particuology. 42:114-125
In this work, a coupled computational fluid dynamics–discrete element method (CFD–DEM) approach was employed to evaluate the spouting behavior of fine, cohesive powders in a cylindrical spouted bed with a conical base and equipped with a Wurster
Publikováno v:
Powder Technology. 404:117452
Publikováno v:
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V. 160
Previously published mechanisms of pellet formation during extrusion-spheronization include a transfer of material between different granules. This research aimed to specify the origin of this transfered mass, enabling further insight into the extrus
Publikováno v:
Angewandte Chemie International Edition. 59