用高温焙烧—盐酸浸出法从粉煤灰中浸出镓Leaching of Gallium From Fly Ash by High Temperature Roasting—Hydrochloric Acid Leaching Method
满剑奇;程立媛;李文慧;任川;赵昕;李彦恒;
摘要(Abstract)：
研究了采用高温焙烧—盐酸浸出工艺从粉煤灰中浸出镓,考察了助剂(Na_2CO_3,K_2CO_3)与粉煤灰混合比例、焙烧温度、焙烧时间对粉煤灰高温焙烧的影响及浸出温度、盐酸浓度、固液质量体积比对镓浸出的影响。结果表明:Na_2CO_3与K_2CO_3(质量比3/1)的混合助剂与粉煤灰按质量比0.5/1混合,在950℃下焙烧2 h后,再用3 mol/L盐酸溶液在60℃、固液质量体积比1/10条件下浸出2 h,镓浸出率达93.43%,浸出效果较好。
关键词(KeyWords)： 粉煤灰;助剂;镓;浸出
基金项目(Foundation): 河北省科技厅重点研发项目(18393810D)
作者(Authors): 满剑奇;程立媛;李文慧;任川;赵昕;李彦恒;
DOI: 10.13355/j.cnki.sfyj.2022.01.004
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