Lithium ore beneficiation process

The main component of this lithium ore is spodumene, but its mineral composition is relatively complex, and there are various types of minerals. The content of feldspar and mica in minerals is very high, and this type of gangue minerals has good buoyancy and serious mudification. Sorting of spodumene minerals can be severely disturbed. And because the distribution of spodumene ore is uneven and scattered, it is mostly replaced by albite and sericite alteration. At the same time, it is also affected by alteration and weathering, which makes the beneficiation of spodumene more difficult.

Lithium ore beneficiation process

The spodumene of this deposit type adopts the spodumene reverse flotation method, and its process is pre-deliming-tailing spodumene. Let's understand the beneficiation process of the spodumene together.

Spodumene pre-desliming process

The spodumene pre-desliming process adopts a grinding-coarse-sweeping process. Before the pre-deliming operation, the raw ore needs to be crushed and screened. After meeting the grinding conditions, it is sent to a ball mill for grinding. It is advisable to grind until the ore particle size is -0.074mm, accounting for 75%. Then perform a rough scan operation.

In this stage, sulfuric acid and laurylamine are added as collectors for gangue minerals, and sent to the flotation machine for roughing and desliming operations. After the first stage of flotation machine performs preliminary desliming, the tailings are sent to the second stage In the sweeping stage, desliming is carried out in depth, in which the concentrate part is impurity slime, and the tailings part is spodumene coarse ore.

Lithium ore grinding - flotation desliming process

The lithium tailings flotation process of the spodumene adopts a rough, two fine and two sweep process. After desliming the tailings slurry, by adding hydrooxidation + sodium carbonate as a spodumene regulator, calcium chloride, 731 and oleic acid as a collector, the tailings slurry is roughly separated to recover lithium minerals, and the rough separation concentrate The spodumene concentrate is obtained by adding sodium carbonate twice, and the tailings are returned to the roughing stage, and the roughing tailings are collected by adding different doses of hydrooxidation + sodium carbonate and calcium chloride, 731, oleic acid, etc. Sweeping operations are carried out twice with the collector, and the concentrate part returns to the tailings roughing stage, while the tailings are directly discharged for tailings treatment.

Spodumene tailings flotation process

The above is the introduction of the spodumene beneficiation process. The pre-deliming-tailing spodumene process scheme adopted has obtained a lithium concentrate with a lithium content of 6.15% and a recovery rate of 75.49%, with good beneficiation indicators. Xinhai Mining can design various types of spodumene beneficiation process flow and beneficiation construction plan, and can also customize complete sets of spodumene beneficiation equipment. Welcome to consult Xinhai Mining.