应用SLon磁选机提高选钛回收率的回顾与展望

我国攀枝花和承德等地区拥有丰富的钒钛磁铁矿资源，早期的选钛以重选和电选为主，大量的细粒钛铁矿损失在尾矿中，TiO₂的选矿回收率只有10%左右。自1994年以后，SLon立环脉动高梯度磁选机开始在钛铁矿选矿工业中应用，使细粒级和微细粒级钛铁矿得到了较好的回收。随着SLon磁选机的应用和浮选新技术的发展，我国钛铁矿选矿技术水平得到了迅速的提高，目前选钛生产回收率已可达到40%。然而，我国选钛回收率还有较大的提高潜力，通过优化选矿流程和设备，选钛回收率有可能达到50%~60%，若能在-20 μm钛铁矿选矿技术方面取得突破并从强磁选和浮选尾矿中再选出一部分次钛精矿，则选钛回收率有望达到70%。

Review and Prospect of SLon Magnetic Separators on Raising Ilmenite Recovery

There are abundant deposits of magnetite associated with vanadium and titanium in Panzhihua region,Chengde region and other places in China.In the early days,ilmenite is mainly recovered by gravity separation and electric separation.TiO2 recovery can only reach about 10% and enormous fine ilmenite particles are lost in the tails.From 1994,SLon vertical ring and pulsating high gradient magnetic separators are applied into ilmenite processing industry,which can effectively recover fine ilmenite particles.The ...