Doubleview Gold Corp. announced that proprietary metallurgical testwork on mineralized core samples from the Hat Polymetallic deposit, located in Northwest British Columbia, successfully demonstrated the recovery of scandium to secondary scandium and aluminum phosphate precipitates, and that the total scandium recovery was greater than 90%. The Metallurgical testwork is now advancing to the next level of producing a final scandium product.

Metallurgical Process: Earlier testwork had shown that geologic materials derived from the HAT project contained scandium at elevated levels above that normally associated with crustal rocks. This testwork also showed scandium reported to the flotation tailings product, as per news release from August 09, 2022. Recent testwork has focused on the treatment of flotation tailings for the recovery of scandium into an intermediate product for further processing and ultimate scandium recovery.

The testwork demonstrated that 94% of the iron can be rejected as a primary precipitate product (Stage 1) and that scandium and aluminum can be recovered into secondary phosphate precipitates (Stages 3 and 4), which can be treated either separately or combined. Total scandium recovery into secondary products was greater than 90%. Metals accountability was generally good with Sc 108%, Al 103%, and Fe 100%.