VDEPIC has developed the new generation of equipment to extract gold and silver from electronic wastes material and other gold contented materials.
The system is using cyanide solution to striping gold plating layer. Then the washing solution transports to the diaphragm electrowinning cell. In the cell, the Au ion can be reduced to Au powder to be collected., and the cyanide solution can be regenerated, so that the system is closed and friendly to environment.
the washing reaction can be writen as below:
4Au+8NaCN+2H2O+O2→4NaAuCN2+4NaOH
The electrowinning reaction can be writen as below:Anode: AuCN2-+e-→Au+2CN-
Cathode: 4OH--4e-→O2+2H2O
The diaphram electrowinning technology can effectively and continuously extract the gold from the solution. And the equipment is stable, highly automated, and simple to operate.
| No. | Item | Unit | Data |
| 1 | Capacity | tpd | 2-3 |
| 2 | Au recovery rate | % | ≥95% |
| 3 | Agent consumption | g/d | 30-50 |
| 4 | Power consumption | kwh/h | 3000-3100 |
Add:25F, B-4, Guanming Business Center, No. 798 Zhongyi Rd, Yuhua, Changsha, Hunan, China
Tel:86 0731 65152558
Mobile:86 173 0849 3887
Whats/Wechat：173 0849 3887
Email：[email protected]
Add：No.3 Puxinhu Center 4 Rd, Tangxia, Dongguan, Guangdong, China
Tel：86 0769 86959488
Fax：86 0769 86959398
Mobile：173 0849 3887 (Whatsapp/Wechat)
Email：[email protected]
