摘要
以青海某铟业公司的中间产物氧化锌为试样,利用超声逐级化学提取法研究了氧化锌中稀散元素镓、铟、锗的赋存状态。超声波的空化作用促进了提取剂与氧化锌粒子的接触,强化了溶解过程,提高了提取效率;逐级化学提取法所得稀散元素的量与从氧化锌中直接测定所得稀散元素的量接近,说明逐级化学提取实验设计合理;氧化锌中的稀散元素镓、铟、锗主要以铁锰氧化物结合态存在,硫化物结合态也占有较大的比例,少量的镓、锗以铝硅酸盐结合态存在。稀散元素赋存状态的确定可为青海铅锌矿资源中稀散元素的综合回收利用提供理论依据。
In this paper,the occurrence of the scattered elements such as gallium,indium and germanium in zinc oxide was studied by ultrasonic sequential chemical extraction of the zinc oxide sampled from the intermediate product of an indium company in Qinghai Province.It was found that ultrasonic cavitation facilitated the contact between the extracting agent and zinc oxide particles,intensified the dissolution process and improved the extraction efficiency.The content of scattered elements in zinc oxide,resulted from the sequential chemical extraction was approximate to that from the direct determination with the zinc oxide sample,which indicates that the design of the sequential chemical extraction experiment was workable.The scattered elements such as gallium,indium and germanium contained in zinc oxide occurs mainly in binding form of ferromanganese oxides as well as in the binding form of the sulfides in a large proportion,while a small amount of gallium and germanium are found in the binding form of aluminum silicates.The determination of the occurrence of scattered elements provided a theoretical basis for the recovery and comprehensive utilization of scattered elements in lead-zinc ores resources in Qinghai Province.
作者
李磊
万俊峰
马生奎
Li Lei;Wan Junfeng;Ma Shengkui(College of Chemistry and Chemical Engineering,Qinghai University for Nationalities,Xining Qinghai 810007,China)
出处
《化工矿物与加工》
CAS
2021年第5期9-11,共3页
Industrial Minerals & Processing
基金
国家自然科学基金(51364039)。
关键词
氧化锌
稀散元素
赋存状态
超声逐级化学提取
铁锰氧化物
硫化物
zinc oxide
scattered elements
occurrence
ultrasonic sequential chemical extraction
ferromanganese oxides
sulfides
