Kinetic role of diethylenetriaminepentaacetic acid added to stripping phase in permeation of rare earth metal ions through a supported liquid membrane

Masahiko Matsukata, Tokuo Shimokoshi, Chikako Nakayama, Toshinori Kojima

Research output: Contribution to journalArticle

Abstract

The effects of addition of diethylenetriaminepentaacetic acid (DTPA) to the stripping phase on the permeation rates of rare earth metal ions (Ln3+) through a supported liquid membrane (SLM) were investigated. It was note worthy that in the presence of DTPA Ln3+ permeated through the SLM even in the range of high pH in the stripping phase where permeation of these ions was not detectable without DTPA. By measurement of the concentrations of Ln in the SLM, the formation of DTPA-Ln chelates led to an improvement in the permeation rates at high pH in the stripping phase.

Original languageEnglish
Pages (from-to)121-123
Number of pages3
JournalJournal of Alloys and Compounds
Volume192
Issue number1-2
DOIs
Publication statusPublished - 1993 Feb 23
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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