Selective leaching of a copper ore by an electromembrane process using ammonia solutions

摘要: Abstract A new method of copper extraction from its ore is examined in this paper. Based on the electrokinetic processes used for soil remediation, technique envisaged consists dissolution by ammonia solution using an electric field. The mixed with NH 4 + / 3 and it inserted a five compartment cell between two ion exchange membranes. Then system acts as electrodialyser where represents which should be demineralised. Moreover, ammonium crosses membrane adjacent to increase giving rise 98% yield after 400 h. role current transport mechanisms have been through interesting process reduces number operation units saves energy fact that does not need oxygen pressure alkaline leaching.