A method for recovering gold cyanide complexes from the pregnant solution by placing activated carbon into a series of connected adsorption columns. The solution flows sequentially through the suspended carbon bed, minimizing wear on the carbon without the need for carbon transfer. The carbon adsorption columns are available in open and closed designs, allowing mines to choose based on their specific conditions.
| Type | Model | Tower Dimensions (mm) | Liquid Supply Pressure (MPa) | Carbon Load (kg) | Adsorption Liquid Volume (m³/h) | Weight (kg) |
| Open Type | XFZK0340 | φ300×4000 | ≤0.2 | 300 | 8 | 385 |
| XFZK0528 | φ500×2800 | 300 | 8 | 670 | ||
| XFZK1524 | φ1500×2400 | 1000 | 50 | 1680 | ||
| XFZK2046 | φ2000×4600 | ≤0.4 | 5000 | 300 | 3220 | |
| XFZK3060 | φ3000×6000 | 6000 | 600 | 8121 | ||
| Closed Type | XFZB1025 | φ1000×2500 | ≤0.2 | 500 | 40 | 1100 |
| XFZB1030 | φ1000×3000 | 500 | 40 | 1173 | ||
| XFZB1230 | φ1200×3000 | 600 | 40 | 1509 | ||
| XFZB1236 | φ1200×3600 | 1000 | 50 | 1617 | ||
| XFZB1530 | φ1500×3000 | 1000 | 50 | 3400 | ||
| XFZB2045 | φ2000×4500 | ≤0.4 | 5000 | 300 | 4190 | |
| XFZB2250 | φ2200×5000 | 5000 | 300 | 3714 | ||
| XFZB2256 | φ2200×5600 | 5000 | 300 | 6224 | ||
| XFZB2460 | φ2400×6000 | 10000 | 600 | 6140 |

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