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Electrolytic production of neodymium without perfluorinated carbon compounds on the offgases

Patent ·
OSTI ID:871851
 [1];  [2]
  1. Export, PA
  2. Pittsburgh, PA
+ Show Author Affiliations

A method of producing neodymium in an electrolytic cell without formation of perfluorinated carbon gases (PFCs), the method comprising the steps of providing an electrolyte in the electrolytic cell and providing an anode in an anode region of the electrolyte and providing a cathode in a cathode region of the electrolytic cell. Dissolving an oxygen-containing neodymium compound in the electrolyte in the anode region and maintaining a more intense electrolyte circulation in the anode region than in the cathode region. Passing an electrolytic current between said anode and said cathode and depositing neodymium metal at the cathode, preventing the formation of perfluorinated carbon gases by limiting anode over voltage.

Research Organization:
EMEC Consultants, Export, PA (United States)
DOE Contract Number:
FC07-91ID13104
Assignee:
EMEC Consultants (Export, PA)
Patent Number(s):
US 5810993
OSTI ID:
871851
Country of Publication:
United States
Language:
English

References (2)

Preparation of cobalt-rare-earth alloys by electrolysis journal January 1969
Electrochemistry of rare earth fluoride molten salts journal March 1993

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Related Subjects

/205/
anode
anode region
carbon
carbon compound
carbon compounds
carbon gases
cathode
cell
circulation
compound
compounds
comprising
current
depositing
dissolving
electrolyte
electrolyte circulation
electrolytic
electrolytic cell
electrolytic production
formation
gases
intense
limiting
maintaining
metal
method
method comprising
neodymium
offgases
oxygen-containing
passing
perfluorinated
perfluorinated carbon
pfcs
preventing
producing
production
providing
region
steps
voltage