Nowadays, high-quality synthetic graphite is required for a whole range of applications, including semiconductor production (substrates, crucibles), industrial furnace construction (graphite felts and heaters), glass and quartz production (molds, tools, etc.), for electrical abrasives and brushes, electrodes for electric steel production and aluminum electrolysis or in metal casting (molds, crucibles, etc.).glass and quartz production (molds, tools, etc.), for electrical grinding pieces and brushes, electrodes for electric steel production and aluminum electrolysis or in metal casting (molds, crucibles). Graphitization processes require temperatures of up to 3,000 °C and are therefore very energy-intensive. Targeted optimization of energy and material efficiency has so far only been possible to a limited extent because the high temperatures can only be monitored indirectly and therefore imprecisely, and because no measurement methods are yet available for determining the degree of graphitization in situ.
The overall aim of the project is to develop innovative ultra-high temperature measurement methods and use them to optimize two different graphite production processes in terms of energy and material efficiency:
(1) the classic Acheson process,
(2) a continuous process for powder graphitization
At the end of the project, the energy-saving potential in the production of synthetic graphite will be demonstrated in combination with the methods developed.
Project Duration | 01.06.2024 - 31.05.2028 |
Sponsor | Federal Ministry for Economic Affairs and Climate Action (FKZ 03EN2114A) |
Funding Amount HTL | 460,000 Euro |
Project partner | SGL Carbon, Onejoon GmbH |
Project coordination | Fraunhofer Center for High Temperature Materials and Design (PD Dr. Gerhard Seifert) |
Project management at HTL | Dr. Kirsten Schulze |