|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Perfluorocarbon Generation and Emissions from Industrial Processes
||An Estimation of PFC Emission by Rare Earth Electrolysis
||Hanno Vogel, Bernd Friedrich
|On-Site Speaker (Planned)
Molten salt electrolysis with oxide feed is the reduction step in the process chain of most rare earth metals. It was industrialized in China in the 1980s. The research and development has been concentrated in China since then as well. The production of neodymium and praseodymium increased with the rapid development of NdFeB magnets from 2000 on. An intensive literature search has been conducted in Chinese media to gather data about the size, technology, location and perfluorocarbon (PFC) emission of the process. Consequently, the electrolysis of neodymium was analyzed under various conditions in laboratory scale with continuous FTIR off-gas measurement. Based on these findings combined with an estimate of the metal production, the annual amount of PFC emission is calculated in three scenarios. This paper wants to act as an incentive for further research and for collecting real industry data of PFC emission from rare earth smelting.
||Planned: Light Metals