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A new approach to separate britholite phase from the rare-earth-rich slag by super gravity was investigated. With the parameter of G = 500, t = 5 min, T = 1423 K, almost all britholite phase is enriched in the concentrate, while the tailing is made up of CaF 2  phase. Under the hypothesis that the RE exists in the slag in terms of RE 2 O 3 , with the gravity coefficient G = 500, t = 5 min and T = 1423 K, the mass fraction of RE 2 O 3  in the concentrate is up to 24.67%, while the mass fraction of CaF 2  in the tailing is 50.01%. Considering that the mass fraction of RE 2 O 3  is 12.01% in the parallel sample, the recovery ratio of rare earth in the concentrate is up to 76.47% by centrifugal separation.

Recovery Behavior of Separating Britholite (Ca 3 Ce 2 [(Si,P)O 4 ] 3 F) Phase from Rare-Earth-rich Slag by Centrifugal Casting