The invention discloses a
beneficiation technology for rock-type primary
ilmenite. The technology includes the steps of pretreatment, low-intensity
magnetic separation, high-intensity
magnetic separation, classification and aftertreatment. The method includes the specific steps that raw ore is completely crushed, and closed-circuit
grinding is conducted; a low-intensity
magnetic separator is used for conducting
magnetic separation, and after a ferromagnetic mineral is removed, low-intensity magnetic separation
tailings are obtained; the low-intensity magnetic separation
tailings are subjected to magnetic separation through a high-gradient high-intensity
magnetic separator, so that high-intensity magnetic separation concentrate and high-intensity magnetic separation
tailings are obtained; the high-intensity magnetic separation concentrate is classified into a coarse fraction product, a medium fraction product and a fine fraction product; final
ilmenite concentrate and final tailings of the
beneficiation technology are obtained through aftertreatment. According to rock-type primary
ilmenite ore which is not industrially used at present, the above technical scheme is used for
beneficiation, and the technological process is simple. According to the reselection and magnetic separation technological processes, no
drug is needed, the policy requirements of
cleaner production and
circular economy of China are met, and the purposes of energy saving, emission reduction, consumption reduction and comprehensive utilization of resources are achieved.