Cov qauv ore yog ib qho oxidized kub ore sau los ntawm ib tug concentrator ntawm ib tug kub mine nyob rau hauv Burundi. Qib kub ntawm cov ore raw yog 0.81 g / t, kev sib tsoo fineness yog -0.074 mm 90%, lub pulp concentration yog 40%. Txiv qaub yog siv los ua pH adjuster. Lub leaching concentrations ntawm Sodium cyanide thiab ib puag ncig tus phooj ywg kub extractant yog ob qho tib si 0.1%. Leaching yog nqa tawm ntawm chav tsev kub rau 24 teev. Tom qab pom thiab ntxuav, qib kub ntawm cov tailings raug kuaj pom, thiab cov leaching tus nqi yog xam. Kev sib piv ntawm cov txiaj ntsig ntawm cyanide leaching thiab environmentally friendly kub extractant leaching yog qhia nyob rau hauv cov lus hauv qab no.
| Leaching lub sijhawm (h) | Leaching residue Au (g/t) | Tus nqi xa tawm (%) | Dosage of CaO (g/t) | Pulp pH | Kev siv tus neeg sawv cev (g / t) | Kub leaching agent |
| NaCN | 0 | 0.81 | / | 3000 | 12 | 500 |
| 4 | 0.3 | 62.96 | 3000 | 11 | ||
| 24 | 0.22 | 72.84 | 3000 | 9 | ||
| Environmental Gold Extracting Agent | 0 | 0.81 | / | 3000 | 12 | 500 |
| 4 | 0.27 | 66.67 | 3000 | 11 | ||
| 24 | 0.2 | 75.31 | 3000 | 9 |
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