The primary coexisting mineral with galena is sphalerite. Hence, it critical to selectively separate from sphalerite by flotation. In this work, thiourea and related derivatives as potential flotation collectors for separating were investigated. Thiourea its found be effective selective in batch studies of a single mineral, 1,1-diphenylthiourea (11DTA) emerging the best choice. Galena has super...

In the present work, the extraction of zinc from a sphalerite concentrate using sodium nitrate as an oxidant in a sulfuric acid solution was investigated. The effective parameters such as the temperature, sulfuric acid and sodium nitrite concentrations, stirring speed, particle size, and solid/liquid (S/L) ratio were analyzed. The dissolution rate increased with increase in the sulfuric acid an...