摘要
采用氧压酸浸工艺处理高硅富铟渣,系统考察了始酸浓度、氧分压、反应温度、反应时间和液固比等对浸铟沉硅效果的影响。试验结果表明:在始酸浓度120g/L、液固比5∶1、釜内压力0.6MPa、反应温度160℃、反应时间1.5h的条件下,铟浸出率高达97.3%,硅沉淀率为98.5%;高压高温工艺能抑制富铟渣酸浸过程中硅胶的形成,浸出矿浆的过滤性能良好。
Indium-rich slag was treated by oxygen pressure acid leaching process.Effects of initial acid concentration,pressure in autoclave,temperature,time and L/S on indium leaching and silicon precipitation were investigated.The results show that indium leaching rate is 97.3%and silicon precipitation rate is 98.5%under the conditions including initial acid concentration of 120g/L,L/S=5/1,pressure in autoclave of 0.6 MPa,reaction temperature of 160℃,and reaction time of 1.5h.High pressure and high temperature process can inhibit formation of silica gel during acid leaching of indium-rich slag,and leaching slurry has good filtration performance.
作者
贺山明
吴鑫
梁勇
廖春发
HE Shan-ming;WU Xin;LIANG Yong;LIAO Chun-fa(Faculty of Metallurgical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)
出处
《有色金属(冶炼部分)》
CAS
北大核心
2020年第1期56-59,共4页
Nonferrous Metals(Extractive Metallurgy)
基金
国家自然科学基金青年基金资助项目(51704133)
江西省省级研究生教改研究项目(JXYJG-2018-127)
江西理工大学清江青年英才支持计划项目(JXUSTQJBJ2017004)
江西理工大学校级大学生创新创业训练计划项目(DC2018-015)
关键词
富铟渣
氧压酸浸
硅胶
浸出率
indium-rich slag
oxygen pressure acid leaching
silica gel
leaching rate