Flotation Research on Recovery of Lithionite from Ta-Nb Tailing in Jiangxi

This is an essay in the field of mineral processing engineering. The main minerals in tantalum niobium tailings in Jiangxi Province are feldspar, quartz, lithionite and topaz, containing a small amount of spodumene and sericite, among which the main available minerals are lithionite. For a long time, the tailings lack a comprehensive utilization and recycling process. This test study studies the flotation test of the main available mineral lithium mica in the tailings, determines the reasonable beneficiation recovery process, and provides a technical basis for the comprehensive utilization of the tailings. According to the process mineralogy properties of the ore, the lithium mica was recovered. Through a series of flotation condition tests, HZ-00 and dodecylamine are used as the combination catcher, Na₂CO₃ is pH value adjustment agent, water glass as the inhibitor, the flotation process of "one coarse, one sweep and one fine", the flotation closed circuit test can obtain Li₂O grade of 4.3.02%, the recovery rate of 72.41%, and the test results are relatively ideal.