Experiment on Precision Microbubble Flotation Machine at a Gold Smelter in Shandong Province
| element | productivity% | Feed grade | Concentrate grade | tailings grade | Enrichment ratio | rate of recovery |
| Au g/t | 12.19 | 51.16 | 260.58 | 22.1 | 5.09 | 62.07 |
Micro bubble flotation of raw ore: Concentrate products can directly enter the selection operation of separation flotation, achieving early and fast collection, reducing the pressure of subsequent operations and labor intensity of workers。 |
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| mineral species | project | D10 | D50 | D90 |
| Raw ore flotation | Ore feeding | 2.08 | 16.65 | 65.54 |
| Micropermia | 1.45 | 9.92 | 29.80 | |
| tailings | 2.21 | 16.83 | 65.65 | |
| Mechanical precision | 1.92 | 15.07 | 70.13 | |
| Reconcentration of tailings | Ore feeding | 1.61 | 9.04 | 42.60 |
| concentrate | 0.54 | 4.40 | 22.33 |
| project | productivity％ | Raw ore taste | Concentrate grade | tailings grade | Enrichment ratio | rate of recovery |
| Ag/g/t | 9.85 | 6.80 | 27.77 | 5.410 | 4.08 | 40.21 |
| Ag/g/t | 9.47 | 19.56 | 63.99 | 14.910 | 3.27 | 31.00 |
| Cu% | 10.98 | 0.07 | 0.29 | 0.044 | 4.08 | 44.83 |
| Pb% | 11.11 | 0.13 | 0.37 | 0.100 | 2.85 | 31.65 |
| Zn% | 8.74 | 0.04 | 0.23 | 0.024 | 5.48 | 47.85 |
| S | 8.75 | 6.46 | 36.09 | 3.620 | 5.59 | 48.86 |
Tailings micro bubble flotation: concentrate yield of 10%, recovery rate of 40%. |
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