To examine the recovery of gold by a combined biometallurgical and hydrometallurgical treatment, tests were conducted at laboratory scale using a refractory stibnite ore. After a long leach time, low recovery was obtained by direct cyanidation, while a gold extraction yield of about 80% was achieved combining biometallurgical and hydrometallurgical process. Experimental results show the technical feasibility of the biometallurgical pretreatment prior to the hydrometallurgical process.
Combined bio-hydrometallurgical process for gold recovery from refractory stibnite / S., Ubaldini; Vegliò, Francesco; Toro, Luigi; C., Abbruzzese. - In: MINERALS ENGINEERING. - ISSN 0892-6875. - 13:14-15(2000), pp. 1641-1646. [10.1016/s0892-6875(00)00148-5]
Combined bio-hydrometallurgical process for gold recovery from refractory stibnite
VEGLIÒ, FRANCESCO;TORO, Luigi;
2000
Abstract
To examine the recovery of gold by a combined biometallurgical and hydrometallurgical treatment, tests were conducted at laboratory scale using a refractory stibnite ore. After a long leach time, low recovery was obtained by direct cyanidation, while a gold extraction yield of about 80% was achieved combining biometallurgical and hydrometallurgical process. Experimental results show the technical feasibility of the biometallurgical pretreatment prior to the hydrometallurgical process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
