• Created: 30.11.2020
• Updated: 03.12.2020
• Read: 152

Method of gold recovery from refractory sulfide gold-arsenic ores

The technology of recovery of gold from refractory gold- sulfide ores is developed and successfully introduced in HMP- 3

The technology involves crushing, grinding, flotation of feed bacterial leaching of flotation concentrate at pH 1.5 - 1.8, countercurrent decantation washing of the pulp of bacterial leaching product with water.

It is suggested that pH of aqueous phase of the pulp be adjusted to certain pH level for reducing losses of gold recovery with discharge of pulp decantation washing.

The positive effect of the introduction of technology is reduced losses of gold with discharge of pulp decantation washing.

The technology is protected by the patent RUZ IAP 04489. "Know-how" is available

Transfer of technology and "Know-how" is possible only under the license agreement.

For acquisition of license contact Mr.Petuhov (Tel: +998-79-2276471 O.Petuhov@ngmk.uz )

27 Navoi St., Navoi 210100, Uzbekistan.

Key words: flotation concentrate, gold, arsenic, sulphides, bacterial leaching, decantation washing, recovery.