(长沙矿冶研究院， 长沙 410012)
摘 要: 由黄钾铁矾渣在焙解过程的化学变化，确定回收锌铟的适宜焙解温度为421.5 ～670 ℃。 实验表明黄钾铁矾渣中铁酸锌转化为可溶硫酸锌的转化率随焙解温度升高而增加，可浸出的铟由焙解温度和时间决定。当温度为 560～620℃、时间为30～10min时， 锌的浸出率为80%，铟为90%。
关键字: 黄钾铁矾 锌 铟
（Changsha Research Institute of Mining and Metallurgy, Changsha 410012）
Abstract:The chemical reactions for the jarosite residue in the roasting decomposition process were investigated by thermal methods. For recovering zinc and indium from jarosite residue, the suitable temperature range of roasting decomposition was determined to be from 412.5 ℃ to 670 ℃. It was showed that the ratio of coverting ZnO·Fe2O3 into soluble ZnSO4 increases with increasing temperature. The leaching of indium depends on the temperature and time. Within temperature from 560 ℃ to 620 ℃ and time from 30 min to 10 min, the leaching rate of Zinc and ind ium was 80%, 90% respectively.
Key words: jarosite zinc indium
