Electrolytic production of rare earth metals/alloys thereof
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United States of America Patent
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Mar 2, 1993
Issued Date -
N/A
app pub date -
May 4, 1992
filing date -
Dec 7, 1984
priority date (Note) -
Expired
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Abstract
The rare earth metals, or alloys thereof, are prepared in high yields in a specially designed electrolytic cell, by electrolyzing a melt comprising (i) at least one chloride of at least one rare earth, or at least one such chloride and at least one chloride of at least one transition metal, (ii) at least one alkali or alkaline earth metal chloride, and (iii) at least one alkali or alkaline earth metal fluoride.
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