| 摘要 |
<p>A method for extracting gold through low-temperature roasting is provided. The method includes the following steps: feeding the material to be roasted into a roasting furnace through feeder, uniformly supplying gas for the material layers, roasting at 350-550°C for 30-180 minutes, discharging the roasted material to obtain calcine, and extracting gold from the roasted product through common cyanidation process and metallurgy process. Through low-temperature roasting, some harmful minerals in gold-containing material are oxidized and removed, and excessive metal oxides generation can be prevented, so as to improve recovery rate and leaching rate of gold.</p> |
