Development of an efficient production technology for the synthesis of high-purity, stoichiometrically and morphologically defined nanopowders
The production of transparent and optoceramics but also active materials for battery storages or oxide ceramics for medical devices increasingly requires powder materials characterized by nanoscale grain sizes, high purity and a defined phase composition. However, high prices and, in many cases, the still severely limited availability of suitable powders make it considerably more difficult to establish products based on them, which is primarily due to limitations in the synthesis technologies available today.
Against this background, innovative technical concepts for powder synthesis are needed to overcome today’s limiting process and quality constraints and thus, for the first time, create the conditions for the industrial production of highly sophisticated powder materials. The novel technology of flameless pulsating spray pyrolysis (“powder synthesis”) developed by Glatt Ingenieurtechnik has, in principle, a particularly high potential for the production of high-purity powder raw materials. However, the process temperatures of well over 1,000 °C required for such material syntheses lead to extremely high energy consumption and, at the same time, only low product yields, and are not marketable or competitive with the current plant engineering solutions.
However, in order to be able to use this fundamentally promising synthesis technology in the future for economical production processes for the manufacture of novel nanopowders, the following objectives are being pursued in the project applied for here:
- Process and plant concept for energy-efficient high-temperature powder syntheses
- Model approaches for energy-efficient design and scaling of high-temperature syntheses
- Research into novel filtration concepts for high product yields
- High-temperature synthesis of high-purity optoceramic nanopowders
The work program pursued by Glatt Ingenieurtechnik focuses on the modeling and model-based scaling of high-temperature powder synthesis as well as the plant engineering implementation and evaluation of efficiency-optimized synthesis processes using defined reference powders.
- Fraunhofer Institut für Keramische Technologien und Systeme (IKTS)
- Glatt Ingenieurtechnik GmbH
The project “PulsON” is funded by the Free State of Thuringia within the framework of the joint project number 2021 VF 0015.
Funding period: 01.08.2021 – 30.06.2023
Further information on this topic and related topics can also be found in the following publications: