摘要 |
<p>The present is a hydrometallurgical process for nickel and cobalt recovery, which involves leaching with ammonia-ammonium carbonate solution of the nickel and cobalt bearing mineral material, using a tubular reactor (4) with air or oxygen injection (5), said mineral material is previously submitted to selective reduction and cooling. The new ammonia leaching process, followed by liquid/solid separation (7) and/or nickel and/or cobalt extraction by solvent or ion-exchange resin, allows the recovery of all the extractable nickel and up to the 130 % cobalt extraction reported by the standard ammonia-ammonium leaching.</p> |
申请人 |
CENTRO DE INVESTIGACIONES PARA LA INDUSTRIA MINERO-METALURGICA, CIPIMM;CASTELLANOS SUAREZ, JOSE;ALVAREZ VILLANUEVA, GERMAN A.;DE LA CRUZ FUXA, ANA MARIA;MARTIN GONZALEZ, PILAR;LOBAINA URTAFE, ISABEL;PEREZ LAURENCIO, OSCAR;ESCALONA RODRIGUEZ, MILAGROS |
发明人 |
CASTELLANOS SUAREZ, JOSE;ALVAREZ VILLANUEVA, GERMAN A.;DE LA CRUZ FUXA, ANA MARIA;MARTIN GONZALEZ, PILAR;LOBAINA URTAFE, ISABEL;PEREZ LAURENCIO, OSCAR;ESCALONA RODRIGUEZ, MILAGROS |