Flotation properties of unusual carbonates: huntite and hydromagnesite

In this study, effects of concentration of anionic collectors like KOl, Flotinor FS-2 and modifying reagents like MgCl2, CaCl2, Na2SiO3 · 5H2O and CMC on surface properties of huntite and hydromagnesite as unusual carbonates have been investigated. The results of microflotation tests have indicated that KOl is more efficient than Flotinor FS-2. And also, MgCl2, CaCl2 have a negative effect on the flotability of huntite and hydromagnesite. Na2SiO3 · 5H2O has no significant effect on the flotability of these unusual carbonates. On the other hand, CMC has acted as a depressant on huntite but there is no clear effect on hydromagnesite.