New classifier technology recovers 20% iron otherwise sent to waste

FLSmidth secures order for new REFLUX™ Classifier technology for treatment of iron ore fines in Norway.

Rana Gruber operating an iron ore mine and concentrator close to the Arctic Circle in Norway decided to order the two REFLUX™ Classifier RCTM-3000-HY-SS units following successful pilot trials. The new REFLUX™ Classifier technology is rapidly gaining popularity in coal and iron ore processing applications around the world because of its high separation efficiency and the ability to easily handle varying feed conditions compared to traditional gravity separation technology.

In the pilot trials at Rana Gruber, the Reflux Classifier technology demonstrated consistent separation and high separation efficiency in the 0-150µm size fraction from material currently discarded to tailings. While the iron grade of the feed to the Reflux Classifier is around 10% the concentrate produced by the Reflux Classifier was more than 60% Fe, and a yield of more than 20% of the iron in the 0-150µm size fraction that is currently lost to waste.

Sales Director EMENA, Andrew Dixon, explains the successes achieved with the RC™ technology with greater process flexibility in operation and high recovery compared with available alternatives: “The RC™ incorporates a ‘laminar high shear rate’ mechanism, which represents the latest in fine particle gravity based separation technology. The lamella section enhances the REFLUX™ Classifier’s capacity, producing a more compact, higher efficient separation unit when compared to competing iron ore and mineral processing equipment such as spirals, up-current classifiers and teeter bed separators.”

Media Contact

Mimi Sofie Stabell
Strategic Marketing Manager, +45 3093 2685,

Andrew Dixon, Sales Director Europe and Middle East, Minerals Division, Phone: +44 (0) 1788 555 777,