Details:

Personal Author:
Chambers, M. F. (Michael F.) ; Murphy, J. E. (Jim E.)
Chambers, M. F. (Michael F.) ; Murphy, J. E. (Jim E.) Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"The U.S. Bureau of Mines conducted experiments on electrowinning of neodymium metal by using a molten-metal cathode at 650 deg. C and an electrolyte of 50 mol pct ndcl3 (neodymium chloride) and 50 mol pct kcl (potassium chloride). The molten-metal cathodes were alloys of magnesium and zinc or magnesium and cadmium. Current efficiencies were 90 pct with a mg-zn cathode and 80 pct with a mg-cd cathode. The mg-cd cathode was easily separated from the electrolyte. In contrast, the mg-zn cathode tended to mix with the electrolyte, making separation difficult. The cathode metals were separated from the neodymium by distillation at 1,100 deg. C under a vacuum of 10-3 torr. Neodymium metal of 99.9 + Purity was recovered from the mg-cd alloy cathode after 30 min distillation time. The neodymium recovered from the mg-zn system contained almost 2 pct zn after vacuum distillation. Continuous operation using the mg-cd alloy cathode was demonstrated." - NIOSHTIC-2

NIOSHTIC no. 10011011


Subject:
[+]
Chlorides.
Electrolyte Solutions.
Neodymium -- Electrometallurgy.

Series:
Report of investigations (United States. Bureau of Mines) ; 9391
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:922964a7953bc65178e5bdb86c71ffe3f52d249436ef8c5ef3240511121bc3c4
File Type:

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