Abstract: A process is described for separation of oxidic minerals, such as phosphate. The process is a froth flotation process utilizing a novel collector, which is comprised of:1. tall oil or any other commercial fatty acids that may contain rosin;2. fuel oil;3. N-substituted-N-mixed alkyoxy-propylmaleimic acid derivative;4. fatty acid sulfonate;5. alkyl alcohol ether sulfate;6. alkyl alcohol sulfate;The collector is added to the aqueous slurry of phosphate ore to be conditioned in a conventional manner. The conditioning reagents include alkaline pH modifiers, such as sodium hydroxide, sodium carbonate or ammonia. The conditioning pH value is controlled at 7.0-11.5. After conditioning, the reagentized slurry is transferred into a flotation cell and flotation is conducted in a traditional process.