Methods of preparing spectrographically pure praseodymium salts

Date
1951-06-01
Authors
Spedding, F.
Butler, T.
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Ames Laboratory
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Abstract

An ion-exchange process was developed for the separation of spectrographically pure praseodymium salts in kilogram amounts from commercially available concentrates. The application of either 0.5% or 0.1% citrate solutions as eluting agents was show to result in excellent separations of praseodymium from samarium, neodymium, and lanthanum when the mixed rare earths were eluted from Amberlite IR-100 or Nalcite HCR cation-exchange resins.

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Ames Laboratory
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