Challenges in electrolysis of neodymium in chloride melts at 500 °C View Full Text


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Article Info

DATE

2018-07

AUTHORS

Johannes Öhl

ABSTRACT

This work is concerned with the electrolysis of neodymium chloride produced in hydro- or pyrometallurgical recycling processes of NdFeB magnets. Due to the high temperature, the energy consumption is huge in today’s industrial reduction processes. In a LiCl–KCl electrolyte with approx. 2 wt% NdCl3, neodymium can be electrolyzed at a moderate temperature of 500 °C. The deposition of a solid layer of neodymium from similar electrolytes has already been described for very small amounts of deposited neodymium. In continuing electrolysis, instead of a thick layer of neodymium at the cathode, fine neodymium crystals were found inside the electrolyte. The results were attributed to a change in reaction mechanism from electrodeposition to the disproportionation of intermediate Nd2+. More... »

PAGES

765-772

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10800-018-1192-4

DOI

http://dx.doi.org/10.1007/s10800-018-1192-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1103925054


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