高铁磷复杂稀有金属矿中回收铁磷合金的探索实验  

Exploratory experiment of recovery iron-phosphorus alloy from high iron-phosphorus complex rare metal mineral

作　　者：杨德华 刘志强 

机构地区：[1]广东富远稀土新材料股份有限公司,广东平远514600 [2]广东省稀有金属研究所,广东省稀土开发及应用重点实验室,广东广州510650

出　　处：《材料研究与应用》2016年第1期57-60,共4页Materials Research and Application

基　　金：广东省科技计划项目(2015B010105010)

摘　　要：探索了采用"高温还原-磁选分离-熔分"工艺从高铁磷复杂稀有金属矿中回收铁磷合金的影响因素.研究结果表明:在温度1450℃、保温时间4h、m(碳酸钙)︰m(活性碳)︰m(原矿)=10︰12︰100的条件下将矿石还原,然后破碎至-0.178mm,在磁场强度0.1T下磁选,获得磁性产品和尾矿(稀有金属富集物).其中磁性产品中铁回收率为82.78%、磷回收率为64.49%,尾矿(稀有金属富集物)中稀土回收率为93.4%,铌回收率为45%,钛回收率达92.08%.磁性产品熔分后得到铁磷合金的主要指标达到GB3210-82FeP16牌号.The paper studied the factors of recovery iron-phosphorus alloy from high iron-phosphorus complex rare metal mineral by ＂high temperature reduction-magnetic separation-melting＂ process. Under the reaction conditions of reducing the ore at temperature of 1450℃, holding time for 4 hours, mass ratio of Ca to carbon and ore was 10 ： 12 ： 100, crushing the reduction burden to - 0. 178mm, and magnetic separating being in 0.1T magnetic field, magnetic products and rare metal enrichment were gained. The recovery of iron from magnetic products was 82.72 %, the recovery of phosphorus from magnetic products was 64.49%, the recovery of rare earth from rare metal enrichment was 93.4% ,the recovery of niobium from rare metal enrichment was 45 %. Main index of iron-phosphorus alloy is fulfilled with requirement of GB3210-82FeP16.

关 键 词：高温还原 磁选 磷铁合金 稀有金属 

分 类 号：TD983[矿业工程—选矿]