聚氨酯泡塑吸附法提取粉煤灰中镓的实验研究  

Experimental study on recovery of gallium from fly ash by adsorption with polyurethane foam

作　　者：高依[1] 王英滨[1] 申万 

机构地区：[1]中国地质大学(北京)数理学院,北京100083 [2]神华科学技术研究院,北京102209

出　　处：《现代化工》2015年第12期62-66,共5页Modern Chemical Industry

基　　金：矿物材料国家专业实验室资助(B05002);神华科学技术研究院有限责任公司委托项目(3-4-2014-140)

摘　　要：在对粉煤灰中镓的回收工艺进行系统研究的基础上,开发了利用泡塑法分离回收粉煤灰中镓的湿法冶金工艺路线,并通过实验确定了最佳工艺条件。在最优条件下利用泡塑回收粉煤灰中的镓可得到镓质量浓度为1.35μg/m L的溶液,并可直接用于后续工业电解生产纯镓。整个流程中镓的总回收率达75.3%。该工艺流程简单,操作条件温和,可实现对粉煤灰中镓、铝和硅元素的提取和综合利用。A new technology of recovering gallium from fly ash by polyurethane foam plastics process is studied. The optimal technical conditions are measured by experiments. Under the optimal conditions, 1.35μg/mL of gallium solution can be obtained, which can be further used to produce purified gallium through industrial electrolysis. The total recovery rate of gallium from fly ash is up to 75.3%. The recovery of gallium by foam plastics process is simple and is under mild operating conditions. At the same time, aluminum and silicon from fly ash can also be utilized, which has significant social and economic benefits.

关 键 词：粉煤灰 镓 泡塑 回收 

分 类 号：TF843.1[冶金工程—有色金属冶金]