Selection of Ion Exchange Resins for Tungsten and Molybdenum Separation

Guang Sheng Huo; Qiong Song; Chun Hua Liao

doi:10.4028/www.scientific.net/AMR.997.363

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 997Selection of Ion Exchange Resins for Tungsten and...

Selection of Ion Exchange Resins for Tungsten and Molybdenum Separation

Abstract:

A solution containing tungsten and molybdenum was acidified using hydrochloric acid, and the ability of several commercial ion exchange resins to separate tungsten and molybdenum was evaluated. The results from the acidification test indicate that when the pH of the solution is adjusted to 7.0, WO₄^2- is polymerized into HW₆O₂₁^5-, while MoO₄^2- is not. The test results of resins selection show that the D213 resin and the D308 resin are superior to other resins in separating low concentrations of tungsten and molybdenum, whereas the D201 resin and the D309 resin are suitable for separating high concentrations of tungsten and molybdenum. The results from the column test indicate that weak-base anion exchange resins are better than strong-base anion exchange resins for both low and high concentrations of tungsten and molybdenum.

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Periodical:

Advanced Materials Research (Volume 997)

Pages:

363-367

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.997.363

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Online since:

August 2014

Authors:

Guang Sheng Huo*, Qiong Song, Chun Hua Liao

Keywords:

Ion Exchange Resin, Molybdenum, Separation, Tungsten

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