A PROCESS FOR ENRICHMENT OF ANATASE MECHANICAL CONCENTRATES IN ORDER TO OBTAIN SYNTHETIC RUTILE WITH

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A process for the enrichment of anatase mechanical concentrates, in order to obtain synthetic rutile with low contents of rare earth and radioactive elements, comprising the steps of : calcination of the anatase concentrate; reduction of the calcined product; dry or wet low-intensity magnetic separation of the reduced product; dry, high- intensity, high-gradient magnetic separation of the non-magnetic fraction from the low-intensity separation; leaching of the high-intensity magnetic fraction; oxidation of the dried product : leaching of the quenched product : filtering of the product from the second leaching : drying of the filtered product : and dry, high-intensity, highgradient magnetic separation of the product of the second leaching.