{Reference Type}: Journal Article
{Title}: Leaching of liquation-feeding furnace dross as a first step for germanium recovery.
{Author}: Drzazga M;Ciszewski M;Kozłowicz S;Maj I;Ochmański M;Radoń A;
{Journal}: BMC Res Notes
{Volume}: 17
{Issue}: 1
{Year}: 2024 Jun 26
暂无{DOI}: 10.1186/s13104-024-06832-6
{Abstract}: <B>OBJECTIVE: </B>Germanium, an important component of electronics, is considered by many global economies as a critical raw material. Therefore, investigating its potential new sources is crucial for prospective technology development. This paper presents the investigation results on the leaching of liquation-feeding furnace dross using sulfuric and oxalic acid solutions.<BR><B>RESULTS: </B>The dross contained mostly zinc (68.0% wt.) but also elevated germanium concentration (0.68% wt.). The influence of temperature, time, initial acid concentration, and liquid-to-solid phase ratio (L:S) was examined. It was found that germanium availability via leaching is limited-maximum leaching yields using aqueous solutions of sulfuric and oxalic acids were 60% (80 °C, 2 h, 15% wt. H2SO4, L:S 25:1) and 57% (80 °C, 3 h, 12.5% wt. H2C2O4, L:S 10:1), respectively.