Improving Germanium Recovering Technology in Zinc Hydrometallurgy

The influencing factors for the recovering technology of germanium in germanium-enriched oxide ore by hydrometallurgy are studied to decrease the loss of germanium and improve germanium recovery.According to the influencing factors of germanium recovering,such as the germanium leaching process,germanium precipitation with tannin,ignition process and so on,the pertinency measures are taken to control the influencing factors,the leaching rate of germanium can be 79.64%;germanium precipitation rate can be 99.08%;the main grade of germanium concentration can be 20.70%;the recovery can be 59.54%.