近年来,国外在铬铁矿选矿方面,集中于研究低品位、微细嵌布铬铁矿的选别。有一种潜势,用浮选法代替传统的重选法来处理需要细磨的贫矿石。高场强湿式磁选机的设计日臻完善,不久,也有望用这种单元来选收铬铁矿。 G.V.沙利文(Sullivan)等,对许多矿床的铬铁矿的实验研究表明,对中、粗粒嵌布的矿石来说,采用重选——磁选,重选——电选联合流程明显地优于单一重选流程。 In recent years, foreign chromite ore dressing, focusing on the study of low-grade, fine mosaic chromite ore sorting. There is a potential, using flotation instead of the traditional re-election method to deal with the need to fine grinding of poor ore. High field strength wet magnetic separator design is improving, and soon, is also expected to use this unit to select the chromite. GV Sullivan et al., Conducted experimental studies on chromite in many deposits, show that for medium and coarse-grained ores, the combined process of re-selection, magnetic separation and re-election Better than a single reselection process.