Comparison among different extractants, AS (2-ethylhexyl)-mono (2-ethylhexyl) ester phosphonic acid (p507), secondary-octyl phenoxy acetic acid (CA-12) and BIS(2, 4, 4-trimethylpentyl)phosphinic acid (CYANEX272), in the separation of heavy rare earths via hydrometallurgical processes

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Abstract

A comparison among (2-ethylhexyl)-mono (2-ethylhexyl) ester Phosphonic acid (P507), Secondary-octyl phenoxy acetic acid (CA-12) and Bis(2, 4, 4-trimethylpentyl) phosphinic acid (Cyanex272), in heavy rare earths separation via hydrometallurgical processes has been investigated. The separation coefficients, β, were obtained and the extraction selectivity has been evaluated using a mixture of heavy rare earths from Samarium to Ytterbium. The experimental results indicated that P507 and Cyanex 272 display a greater affinity for heavier rare earths while CA12 proved to be more effective for the lighter rare earth metals.
Original languageEnglish
Publication statusPublished - 2014
EventRare Metal Technology 2014 - TMS 2014 143rd Annual Meeting and Exhibition - , United States
Duration: 1 Jan 2014 → …

Conference

ConferenceRare Metal Technology 2014 - TMS 2014 143rd Annual Meeting and Exhibition
CountryUnited States
Period1/1/14 → …

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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