Germanium Co-Precipitation with Ferric Hydroxide: A Lab-Scale Study
Lab-scale germanium co-precipitation with ferric hydroxide in dilute sulfuric acid media was studied. The experiments of co-precipitation of germanium and ferric hydroxide were performed by neutralization of the germanium-ferric sulfate solution via adding calcium hydroxide powder. The variables affecting the germanium precipitation yield were investigated. The experimental results show that high initial germanium concentration, high ferric/germanium molar ratio, high final solution pH, low ion strength and slow temperature will contribute to high germanium precipitation yield.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
K. Y. Chen et al., "Germanium Co-Precipitation with Ferric Hydroxide: A Lab-Scale Study", Advanced Materials Research, Vols. 581-582, pp. 1050-1053, 2012