摘要
研究从含61.26%TFe、0.30%REO及78.20g/t Sc2O3的稀有金属伴生铁精矿中回收稀土和钪的熔炼工艺。结果表明,在熔炼温度1 500℃、熔炼时间60min,熔剂为2.24%石灰和0.06%石英,还原剂石墨用量为10%的实验条件下,可从铁精矿中获得含92.61%TFe的生铁和含2.64%REO、673.11g/t Sc2O3的熔炼渣;生铁中Fe回收率为97.99%,熔炼渣中REO和Sc2O3的回收率分别为96.98%和94.86%。
The smelting process was studied of rare earth and scandium recovery from rare metal associated iron concentrate with 61.26% TFe,0.30% REO and 78.20 g/t Sc2 O3.The results indicate that the proper smelting process parameters are as follows：smelting temperature of 1 500 ℃,smelting time of 60 min,the flux of 2.24%lime and 0.06% quartz,and graphite dosage of 10% as the reducing agent.Under the above conditions,the pig iron with 92.61% TFe and smelting slag with 2.64% REO and 673.11 g/t Sc2 O3 are obtained,the iron recovery of pig iron is 97.99%,and the recoveries of REO and Sc2 O3 of smelting slag are96.98% and 94.86%,respectively.
作者
刘牡丹
刘勇
刘珍珍
LIU Mu-dan;LIU Yong;LIU Zhen-zhen(The Key Laboratory for Mineral Resources R~D and Comprehensive Utilization of Guangdong,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Institute of Resources Comprehensive Utilization,Guangzhou 510650,China)
出处
《稀有金属与硬质合金》
CAS
CSCD
北大核心
2018年第4期6-10,共5页
Rare Metals and Cemented Carbides
基金
国家自然科学基金(51304055)
广东省自然科学基金(S2013040015625)
广东省科学院创新能力建设专项(2017GDASCX-0109)
广东省科技厅公益研究与能力建设专项(2017A070701020)
广东省科技厅重点实验室运行专项(2017B030314046)
关键词
稀有金属伴生铁精矿
稀土
钪
熔炼
回收
rare metal associated iron concentrate
rare earth
scandium
smelting
recovery
