绿色矿冶

In order to solve the problems of long process flow and high consumption of auxiliary materials in the recovery of valuable metals from ternary high magnetic materials, a low cost purification and recovery process for high magnetic materials was proposed. The effect of stirring speed and magnetic field intensity of permanent magnet rods on the adsorption effect of metal foreign particles in the leaching solution of high magnetic materials were studied. The effects of different additives such as polymerized iron sulfate and ferrous sulfate on the iron removal effect were also studied, as well as the use of manganese powder. The effect of removing iron from precursor accident materials as a neutralizer on the introduction of impurities. The experimental results show that the use of permanent magnetic rods to adsorb metal foreign particles in the leaching solution of high magnetic materials has a good effect, with a metal particle removal rate of 91%, and the stirring speed has no significant impact on it; The greater the magnetic field intensity of the permanent magnet rod, the stronger the adsorption capacity. The introduction of polymeric iron sulfate and ferrous sulfate during neutralization and hydrolysis for iron removal has poor iron removal efficiency, and it is difficult to filter after adding polymeric iron sulfate; Adding precursor accident materials has the best iron removal effect, with an iron removal rate of over 90%, and no other impurities will be introduced to affect the solution quality.