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％。
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·Fe 2O 3 into soluble ZnSO 4 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 indium was 80%, 90% respectively.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1997年第3期56-58,共3页
The Chinese Journal of Nonferrous Metals
