摘要
用XRD来分析炉渣中铁的赋存状态,同时利用反浮选法、磁选法对其进行回收探索试验。虽然铁的回收率较高,但其品位不高。用XRD、DSC/TG、SEM-EDS、Mossbauer等方法研究了反射炉水淬渣的工艺矿物学,结果表明:此炉渣总铁占41.32%,其中32.5%的Fe以Fe_(3)O_(4)的形式存在,53.5%的Fe以2FeO·SiO_(2)的形式存在,Fe、Si、O元素紧密共生,相互交织。找到常规选矿法不能有效回收浮选尾矿中铁的原因,并提出解决方法。
The occurrence state of iron in furnace slag was analyzed by XRD,and the recovery probe trial was carried out by using of anti-flotation method and magnetic separation method.The recovery rate of Iron is high,but its grade is not high.The process mineralogy of water-quenched slag in reverberatory furnace was studied by XRD,DSC/TG,SEM-EDS,Mossbauer and the other methods,the results show:the total iron in the furnace slag is 41.32%,32.5%Fe was existed in Fe_(3)O_(4)form,5.35%Fe was exissted in 2FeO·SiO_(2)form,Fe,Si,O were coexisted and interwined closely.Therefore,the reason that iron in water-quenched slag can not be effectively recycled by conventional beneficiation method were found out,and the solutions were proposed.
作者
刘缘缘
林安川
蒋玉波
LIU Yuan-yuan;LIN An-chuan;JIANG Yu-bo(Kunming Vocational and Technical College of Industry,Kunming,Yunnan 650302,China;Kunming Iron and Steel Co.,Ltd.,Wuhan Iron and Steel Group,Kunming,Yunnan 650302,China)
出处
《云南冶金》
2022年第6期38-44,共7页
Yunnan Metallurgy
基金
云南省科技人才与平台计划(202105AF150020)。
关键词
水淬渣
反浮选
磁选
铁
water-quenched slag
reverse flotation
magnetic separation
iron
作者简介
刘缘缘(1986-),女,湖北秭归人,高级工程师,从事冶金工业分析、冶金环保技术研发;通讯作者:林安川(1973-),男,云南文山人,正高级工程师,从事资源利用、冶炼及智能化技术研发,Email:kmlac@163.com。
