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Title: Magnetic separation of Dy(III) ions from homogeneous aqueous solutions

The possibility to enrich paramagnetic dysprosium(III) ions in a magnetic field gradient is proved by means of interferometry, which may open the route for a magnetic separation of rare earth ions from aqueous solutions. The separation dynamics are studied for three different concentrations of DyCl{sub 3} and compared with those found recently in a sulphate solution of the 3d ion Mn(II). In view of the similar-sized hydration spheres for Dy(III) and Mn(II), the slower separation dynamics in DyCl{sub 3} is attributed to both a higher densification coefficient and the strong impact of Brownian motion due to the absence of ion-pair clusters.
Authors:
; ; ; ;  [1]
  1. Institute of Fluid Mechanics, Chair of Magnetofluiddynamics, Measuring and Automation Technology, Technische Universit├Ąt Dresden, Dresden 01069 (Germany)
Publication Date:
OSTI Identifier:
22395482
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AQUEOUS SOLUTIONS; BROWNIAN MOVEMENT; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; DYSPROSIUM; DYSPROSIUM CHLORIDES; DYSPROSIUM IONS; HYDRATION; INTERFEROMETRY; MAGNETIC FIELDS; MANGANESE IONS; PARAMAGNETISM; SULFATES