Leaching of brannerite in the ferric sulphate system. Part 3: The influence of reactive gangue minerals

Fluorite (10 g/L) had a positive effect on uranium and titanium extraction. This was attributed to the formation of hydrofluoric acid during the dissolution of fluorite. Brannerite particles were heavily pitted and corroded after leaching in the presence of fluorite, with near complete dissolution occurring in 2-3 h.