Understanding API Static Drying with Hot Gas Flow: Design and Test of a Drying Rig Prototype and Drying Modeling Development

Autor: Alastair Barton, Mariam Siddique, Chris John Price, Sara Ottoboni, Marine Fraissinet, Simon Coleman, Paul A. Mulheran, Audrey Laux, Christopher Steven, Paul Firth, Marion Joannes
Rok vydání: 2020
Předmět:
Zdroj: Organic Process Research & Development
ISSN: 1083-6160
Popis: Developing a continuous isolation process to produce a pure, dry, free-flowing active pharmaceutical ingredient (API) is the final barrier to the implementation of continuous end-to-end pharmaceutical manufacturing. Recent work has led to the development of continuous filtration and washing prototypes for pharmaceutical process development and small-scale manufacture. Here, we address the challenge of static drying of a solvent-wet crystalline API in a fixed bed to facilitate the design of a continuous filter dryer for pharmaceutical development, without excessive particle breakage or the formation of interparticle bridges leading to lump formation. We demonstrate the feasibility of drying small batches on a time scale suitable for continuous manufacturing, complemented by the development of a drying model that provides a design tool for process development. We also evaluate the impact of alternative washing and drying approaches on particle agglomeration. We conclude that our approach yields effective technology, with a performance that is amenable to predictive modeling.
Databáze: OpenAIRE