working principle
Desorption electrowinning equipment including: desorption column, electrolytic cell, electric heater, desorption fluid tank, filter, electric control cabinet, rectifier cabinet, circulating pump, activated carbon regeneration furnace, etc.
When the desorption system is added with anions which are more easily absorbed by activated carbons, Au(CN)2 is replaced by anion and the gold desorption is achieved. After the carbons loaded with gold are desorbed, pregnant solution is process via ionization. At last, solid gold is attained.
Parameters
| Desorption electrowinning equipment |
Model
| Suitable size | Operating parameter |
| Mine scale(t/d) | Crudes quality(g/t) |
| GKJD-200 | ＜150 | 2--8 | Temperature：150±2OC
(Na0H)PH：≥13.5
Desorption pressure tank：0.5(Mpa)
Electrolytic tank pressure：0.45(Mpa)
|
| GKJD-300 | 150-300 | 2--8 |
| GKJD-500 | 300-500 | 2--8 |
| GKJD-700 |
| GKJD-1000 | 500-1000 | 2--8 |
| GKJD-1500 |
| GKJD-2000 | 1000-2000 | 2--20 |
| GKJD-2500 |
| GKJD-3000 |
| GKJD-3500 | 2000-3000 | 2--20 |
| GKJD-4000 |
| GKJD-5000 |
| GKJD-8000 | 3000-5000 | 2--20 |
| Electrical heater |
Model
| Temperature(℃) | Working medium | Electro-thermal power(KW) | Voltage(V) | Weight(kg) | Note |
| JDDR6 | 40 | NH4SCN | 2x3 | 380 | 80 | Resin electrowinning |
| JDDR18 | 98 | 1%NaOH+2%NaOH | 6x3 | 380 |
|
| JDDR24 | 98 | 1%NaOH+2%NaOH | 8x3 | 380 | 147 |
| JDDR36 | 98 | 1%NaOH+2%NaOH | 6x6 | 380 |
|
| JDDR48 | 98 | 1%NaOH+2%NaOH | 8x6 | 380 | 138 |
| Desorption column |
| Model | Volume(m3) | Pressure(Pa) | Temperature(℃ )
| Working medium |
| φ300×2000 | 0.14 | Ordinary | 95～98 | NaOH2%+NaOH1% |
| φ450×2000 | 0.4 | Ordinary | 95～98 |
| φ500×2500 | 0.49 | Ordinary | 95～98 |
| φ500×3000 | 0.55 | Ordinary | 95～98 |
| φ500×3720 | 0.7 | Ordinary | 95～98 |
| φ518×3880 | 0.82 | Ordinary | 95～98 |
| φ600×3000（2500） | 0.85（0.71） | Ordinary | 95～98 |
| φ600×4300 | 1.2 | Ordinary | 95～98 |
| φ700×3000 | 1.08 | Ordinary | 95～98 |
| φ700×3800（2800） | 1.585（1.08） | Ordinary | 95～98 |
| φ800×4000 | 2 | Ordinary | 95～98 |
| φ900×4200 | 3 | Ordinary | 95～98 |
Heat exchanger
|
| Model | Specification | Heat exchange area(㎡) | Pressure(Pa) | Weight (kg) |
| JDRJ0413 | φ400×1300 | 6.25 | 0.35 | 325 |
| JDRJ0417 | φ400×1700 | 8 | 0.35 | 344 |
| JDRJ0418 | φ400×1800 | 9 | 0.35 | 490 |
| JDRJ0618 | φ600×1800 | 16 | 0.35 | 868 |
| JDRJ0830 | φ800×3000 | 38 | 0.35 | 1495 |
| Electrolytic cell |
| Model | Effective volume(m3) | Cathode plate number | Anode plate number | Homopolar distance
(mm) | Temperature(℃) | Voltage(V) | Electric current(A) | Note |
| DJC0.2 | 0.2 | 9 | 10 | 105 | 90～95 | 0～6 | 0～1000 | Resin Desorption |
| DJC0.4 | 0.4 | 7 | 8 | 105 | 90～95 | 0～6 | 0～1000 |
| DJC0.6 | 0.6 | 11 | 12 | 105 | 90～95 | 0～6 | 0～1000 |
| DJC0.8 | 0.8 | 15 | 16 | 105 | 90～95 | 0～6 | 0～1000 |
| DJC1 | 1 | 20 | 21 | 105 | 90～95 | 0～6 | 0～1000 |
| DJC0838 | 0.838 | 24 | 25 | 80 | 65±5 | 1.5～3 | 300～350 |
| Storage tank of electrolytic solution |
| Model | Specification | Filtration volume(m3) | Weight (kg) | Note |
| JDYC650 | φ400×1300 | 0.22 | 126 | rectangle |
| JDYC900 | φ900×900 | 0.57 | 229 |
| JDYC1000 | φ1000×1200 | 0.94 | 252 |
| JDYC1200 | φ1200×1200 | 1.36 | 308 |
| JDYC1350 | φ1350×1400 | 2 | 368 |
| JDYC1500 | φ1500×1500 | 2.65 | 558 |
| JDYC2250 | φ2250×1500 | 5.96 | 951 |
| JDYC2 | 2280×1188×888 | 2 | 490 |
| Storage tank of Gold charcoal |
| Model | Specification | Thickness（mm） | Weight (kg) |
| JDCC600 | φ600×1050 | 5 | 104 |
| JDCC900 | φ900×1805 | 5 | 242 |
| JDCC1000 | φ1000×2005 | 5 | 334 |
| JDCC1200 | φ1200×2390 | 5 | 384 |
| Filter |
| Model | Volume（m3） | Temperature(℃) | Pressure(Pa) | Weight (kg) |
| JDG600 | 2 | 135 | ≤0.5 | 349 |
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