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METHODS AND DEVICES FOR ENHANCING CONTAMINANT REMOVAL BY RARE EARTHS

  • US 20110309017A1
  • Filed: 04/13/2011
  • Published: 12/22/2011
  • Est. Priority Date: 04/13/2010
  • Status: Abandoned Application
First Claim
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1. A method, comprising:

  • (a) receiving a feed stream comprising a target material and an interferer, the target material and interferer being different;

    (b) contacting the feed stream with an upstream treatment element to remove at least most of the interferer while leaving at least most of the target material in an intermediate feed stream; and

    (c) thereafter contacting the feed stream with a downstream treatment element to remove at least most of the target material, wherein the interferer interferes with removal of the target material by the downstream treatment element, wherein the upstream treatment element is one of a rare earth-containing treatment element and a non-rare earth-containing treatment element, and wherein the downstream treatment element is the other of a rare earth-containing treatment element and a non-rare earth-containing treatment element.

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