METHOD AND PLANT FOR RECOVERING SCANDIUM Russian patent published in 2018 - IPC C01F17/00 C22B59/00 C22B3/42 B01J45/00 B01J47/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method for the reduction of scandium and scandium-containing ions from a feed stream, which can be, but is by no means limited to, a leach liquor or leach pulp. Method comprises reacting a feed stream with an ion exchange resin to sorb scandium or ions containing scandium, from the feed stream into the ion exchange resin under acidic conditions to form a loaded resin, wherein the ion exchange resin is an amphoteric resin, treating the loaded resin with a neutralising solution that deprotonates the loaded resin, wherein the neutralising solution after deprotonating the loaded resin is lean in scandium and ions containing scandium, and wherein the neutralising solution is an alkaline neutralising solution, treating the loaded resin with an alkaline neutralising solution so that the alkaline neutralising solution, which interacts with the loaded resin, has a final pH of 6 to 10, and treating of the loaded resin with a desorbing solution to desorb scandium or ions containing scandium from the resin and to form a product stream rich in scandium or ions containing scandium and a non-product resin.

EFFECT: invention provides a high scandium recovery ratio.

16 cl, 6 dwg, 3 tbl