Positive flotation method of low grade refractory phosphate ores
A positive flotation, low-grade technology, used in flotation, solid separation and other directions, can solve the problems of difficult industrial application, high beneficiation cost, complex process flow, etc., and achieves significant separation effect, good sorting index, and easy to use. Effect
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Embodiment 1
[0034] Embodiment 1: Phosphate rock raw ore contains P 2 o 5 9.82%, according to the pharmaceutical system listed in Table 1, after adding sodium carbonate and high modulus water glass to make the slurry, then add the collector ZJ oleic acid composition, stir for 2 minutes, and go through 1 time of rough selection and 3 times of fine selection , 2 times of sweeping, fine sweeping combined with middle ore grinding and 1 time of positive flotation roughing to obtain P-containing 2 o 5 27.28%, the recovery rate is 84.97% phosphorus concentrate.
Embodiment 2
[0035] Embodiment 2: Phosphate rock raw ore contains P 2 o 5 14.12%, according to the medicament system listed in Table 1, after adding sodium carbonate and high modulus water glass to make the slurry, add the collector ZJ oleic acid composition, stir for 2 minutes, and go through 1 time of rough selection, 3 times of fine selection, 2 Sweeping for the first time, fine sweeping and merging of medium ore and grinding again, and then 1 time of positive flotation and roughing to obtain P-containing 2 o 5 Phosphorus concentrate with 30.77% and 88.28% recovery rate.
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