摘要
采用氧压酸浸技术对铅冶炼富铟烟尘进行浸出试验研究,详细考察了硫酸用量、氧分压、温度、液固比、时间、粒度等因素对铟浸出效果的影响,确定了氧压酸浸的最佳条件。结果表明,在下述最佳条件下:初始硫酸浓度180g/L、氧分压0.8MPa、温度150℃、液固比5∶1、时间120min、反应物粒度0.15～0.12mm,铟和锌的浸出率分别达到96.74%和99.19%,渣含铟小于0.02%。
Indium bearing dust from lead reverberatory furnace was leached with oxygen pressure acid leac-hing process. The effects of H2SO4 initial concentration, oxygen partial pressure, leaching temperature, ratio of liquid to solid （L/S）, leaching time, and particle size of dust on the leaching were investigated, and the optimum conditions for oxidic-acidic pressure leaching were obtained. The results show that the leaching rate of indium and zinc reaches 96.74% and 99.19% respectively, and the content of indium in slag is reduced to less than 0.02% under the optimum conditions including H2SO4 initial concentration of 180 g/L, oxygen partial pressure of 0.8 MPa, leaching temperature of 150 ℃, L/S of 5 ： 1, leaching time of 120 min, and particle size of dust of 0.15-0.12 mm.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2012年第11期47-51,共5页
Nonferrous Metals（Extractive Metallurgy)
关键词
氧压酸浸
含铟烟尘
铅
反射炉
浸出
oxygen pressure acid leaching
indium bearing dust
lead
reverberatory furnace
leaching
