Method of decalcifying rare earth metals formed by the reduction-diffusion process
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United States of America Patent
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Oct 15, 1991
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N/A
app pub date -
Aug 9, 1990
filing date -
Aug 9, 1990
priority date (Note) -
Expired
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Abstract
Mixtures of a rare earth and an intermetallic compound comprising the rare earth and a ferromagnetic metal selected from the group consisting of iron and cobalt which are formed by the reduction-diffusion process are decalcified by reacting the product of the reduction-diffusion reaction with neodecanoic acid and dissolving the calcium neodecanoate formed thereby in an organic solvent to remove it from the metallic components of the reaction product.
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