【摘要】：以氧化鋅煙塵為原料、硫酸為浸出劑,研究了含鍺氧化鋅煙塵的浸出過程。最佳工藝條件為:煙塵用量50g、硫酸用量20mL、反應(yīng)溫度80℃、反應(yīng)時(shí)間2h、液固比4妣1,在該條件下,鋅、鍺的浸出率分別為89.12%和89.75%。將浸出液的pH調(diào)至2.5,在沉淀溫度60℃,攪拌時(shí)間30min的條件下,采用浸出液中鍺量40倍的單寧酸進(jìn)行沉鍺,鍺的沉淀率達(dá)97.2%,得到含鍺0.809%的單寧渣,該沉淀渣在600℃灼燒1h后得到品位為14.55%的鍺精礦。沉鍺后液可返回鋅生產(chǎn)。
[Abstract]:The leaching process of zinc oxide dust containing germanium was studied by using zinc oxide dust as raw material and sulfuric acid as leaching agent. The optimum technological conditions are as follows: dust dosage 50 g, sulfuric acid dosage 20 mL, reaction temperature 80 鈩，

本文編號(hào)：2516989