PTMS magnetic separator adding sodium hexametaphosphate as inhibitors flotation process can desorption adsorption on the surface of the quartz oleate ions, and can prevent the amine ion collector adsorbed on the surface of quartz, and feldspar impact is not big, this leads to sodium potassium feldspar and quartz flotability to expand in the pulp, sodium potassium feldspar with bubbles rise together to become a concentrate, Finally, potassium feldspar concentrate with K2O content of 10 ~ 14% and recovery of 70 ~ 88% can be obtained.
In step 1, when the particle size of potash feldspar material reaches 60% -0.074mm, potassium feldspar pulp can be made directly; When the particle size of potassium feldspar material is coarser, it is best to crush and grind the potassium feldspar material to 60% of the particle size of -0.074mm, and then make potassium sodium feldspar pulp for PTMS magnetic separator separation. Controlling the particle size of potash feldspar material in this range is helpful to the dissociation of potash feldspar and quartz, and the grinding cost is more economical.
In step 1, the best concentration of solid phase in potassium-bearing albite pulp is 30-45wt %, For example, it can be 30wt %, 31wt %, 32wt %, 33WT %, 34wt %, 35wt %, 36wt %, 37wt %, 38wt %, 39wt %, 40WT %, 41wt %, 42wt %, 43WT %, 44WT %, 45wt % or a specific point value between the above values, For the sake of space and brevity, this list will not be exhaustive. PTMS magnetic separator can remove iron (FE2O3) inside.
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