摘要
采用包头２号矿体的重选粗精矿（含Ｎｂ２Ｏ５１．６％～１．８％），用磁化焙烧─磁选，交流等离子冶炼工艺流程，可获得低磷中级铌铁（含铌２２％～３２％，Ｎｂ／Ｐ＞３０），铌收率６１．ｌ％．同时获得含铌铁精矿（ＴＦｅ＞６０％，Ｎｂ２Ｏ５～１．０％），流程短效率高而经济。
A new combined magnetizing roasting-separation-smelting process of niobium enrichment from No.2 ore body of Baotou niobium-bearing iron ore has been developed. Using magnetizing roasting-magnetic separation-plasma smelting, a kind of middle grade ferroniobium of 22%～32% Nb and Nb/P>30 has been obtained and total niobium recovery ratio is 61.l%. This combined process has great economical potential because of its shorter flowsheet and more efficient operation.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1995年第3期218-223,共6页
Journal of University of Science and Technology Beijing
基金
国家八.五攻关项目
关键词
磁化焙烧
铁矿物
磁力选矿
经济效益
magnetizing roasting, magnetic separation, plasma smelting, ferroniobium, niobium metallurgy
