Procedimiento para separar el metal ag, au, pt, pd, rh, ru, ir, os, cu, mo, ni, mn, zn, pb, te, sn, hg, re, v y mezclas de estos, desde una escoria, que comprende triturar la escoria, contactar con al menos una particula magnetica y separar los aglomerados de la mezcla mediante aplicación de un campo magnetico; y uso de por lo menos una particula magnetica.

摘要

The present invention relates to a process for the separation of at least one metal from a slag, comprising that at least one metal and further components, comprising at least step (A) grinding the slag, (B) if appropriate, contacting the ground slag of step (A) with at least one surface-active substance and/or at least one magnetic particle, if appropriate in the presence of at least one dispersant, resulting in formation of agglomerates of the at least one metal and the at least one magnetic particle, (C) if appropriate, addition of at least one dispersant to the mixture obtained in step (B) to give a dispersion having a suitable concentration, and (D) separation of the agglomerates from the mixture of step (B) or (C) by application of a magnetic field, and to the use of at least one magnetic particle for the separation of slag.