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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Advances in Powder and Ceramic Materials Science
Presentation Title F-19: Purity Improvement According to Batch and Continuous Hot Chlorination Processes of Natural Quartz Powder
Author(s) Jong Ho Kim
On-Site Speaker (Planned) Jong Ho Kim
Abstract Scope Natural quartz powder is the main ingredient in the crucible of solar and semiconductor silicon monocrystal growth. In general, natural quartz powders are manufactured through crushing and acid leaching processes using quartzite as the starting material. To achieve better purity, chlorine gas can be used at high temperatures to reduce the content of alkali element impurities. In this work, we compare the degree of purity improvement by applying batch and continuous processes. The batch process is easy to implement in a simple way and has the advantage of being easy to control purity, while the continuous method has the advantage in terms of productivity. In this work, we propose an optimal process variable to obtain improved purity when applying each process. Finally, quartz glass was manufactured through a melting process and its properties were verified as a product.
Proceedings Inclusion? Planned:
Keywords Ceramics, Powder Materials, Process Technology

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