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Journal of Nanomaterials
Volume 2012, Article ID 678581, 10 pages
http://dx.doi.org/10.1155/2012/678581
Research Article

Simulation of Magnetophoretic Separation Processes in Dispersions of Superparamagnetic Nanoparticles in the Noncooperative Regime

1Materials Simulation and Theory Department, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
2Departament de Física, Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra, Spain

Received 15 December 2011; Accepted 30 January 2012

Academic Editor: Carlos Martinez-Boubeta

Copyright © 2012 Jordi S. Andreu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Magnetic separation has gained much attention due to its implications in different fields, becoming feasible as an alternative to existent technologies at the industrial and lab scale. Substantial efforts are focused to improve the magnetic particles used in these applications. Here we show how a relatively simple and low-cost simulation strategy (tracer simulations) can be employed to predict the effect of various key factors in magnetic separation processes, namely, particle properties and magnetic separator designs. For concreteness, we consider here specific problems in magnetic separation. The first one is the effect of different profiles of the magnetic field in the separation of magnetic nanoparticles, and the second one is the magnetophoresis of colloidal particles in a dispersion of magnetic nanoparticles.