Table of Contents
Magnetic and Electrical Separation
Volume 9 (1998), Issue 2, Pages 95-108
http://dx.doi.org/10.1155/1998/48731

Contribution of Cryomagnetism to Separation of Non-Ferrous Metals From Waste Products

1lNPL-ENSG, Laboratoire Environnement et Minéralurgie, Rue du Doyen Roubalt BP 50 – 54501 Vandoeuvre les Nancy, France
2Bureau de Recherches Géologiques et Miniéres, SMN/DPEA BP 6009 – 45060 Orleans Cedex 2, France

Received 18 April 1998; Accepted 3 June 1998

Copyright © 1998 Hindawi Publishing Corporation. 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

The authors have studied the use of the cryomagnetic separation techniques for the processing of non-ferrous waste since 1989. This paper presents: – the superconducting magnetic separator and the adapted processing installation; – the main results achieved by tests with synthetic and industrial effluents containing Ni, Cr, Zn, Cu or V. The research work confirmed the assumption that a cryomagnetic separation can be applied to non-ferrous waste materials. Technical difficulties of implementing this technique are understood. A patent containing the innovative process seems to be ofcommon interest for the processing of fluids charged with small amounts of dissolved metals. As a result of the investigations such an installation appears to be a new way to extract metals from fluids before they are discharged into nature. This is important in view ofmore stringent controls in the future.