Beneficiation process for efficiently recovering micro-fine particle specularite

The invention discloses a beneficiation process for efficiently recovering micro-fine particle specularite. The technology mainly comprises the steps that in the pretreatment process of ore pulp, dispersion treatment is conducted on the ore pulp through ultrasonic waves, so that micro-fine particle minerals in the ore pulp are fully dispersed; after the pre-gelatinized cassava starch is added, iron minerals in the ore pulp are selectively flocculated into clusters by utilizing the selective flocculation effect of the pre-gelatinized cassava starch on the micro-fine particle specularite; and the pretreated ore pulp is subjected to high-intensity magnetic separation operation through a periodic pulse high-gradient magnetic separator, and a high-intensity magnetic separation concentrate product is obtained. The process can effectively solve the problem that micro-fine particle specularite is lost along with tailings in the magnetic separation process, and the recovery rate of magnetic concentrate is increased; c