| abstract |
A process for the selective flotation of metal ores is described, wherein ionic organic collectors are utilized, which have the formula: <CHEM> where R and R1, like or different from each other, represents: H, a halogen, a straight or branched C1-9 alkyl group, an alkoxyl or hydroxyalkyl group in which the alkyl moiety contains from 1 to 9 carbon atoms, or a phenyl group; and M represents; H, Na, K, Li, Cs, NH4. |