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Spodumene is one of the main raw materials for lithium-ion batteries. The development and utilization of spodumene resources is important to meet the growing global demand for lithium.
In spodumene ores, there are often some magnetic iron minerals, such as magnetite (magnetite, magnetite, etc.), so magnetic separation technology can be used to separate these iron minerals from spodumene. The following will introduce you to the general process of spodumene magnetic separation and the factors that affect magnetic separation.
The raw spodumene ore is transported to the crusher through a belt conveyor for processing. The raw ore will be broken from larger blocks into smaller particles, which can increase the surface area of the ore and facilitate subsequent grinding and magnetic separation.
Crushing is usually done using a jaw crusher, which uses pressure to crush the ore into the desired particle size. The crushed spodumene needs to enter the grinding equipment for further refinement and grinding to obtain a particle size suitable for magnetic separation. Grinding is usually done using a ball mill. The ore is ground by a rotating cylinder and grinding stones or balls inside.
Crushing and grinding is one of the key steps in the magnetic separation process of spodumene ore. Its purpose is to crush the original spodumene ore into suitable particle size to improve the effect and efficiency of magnetic separation. By increasing the ore surface area and refining the ore particles, the separation effect of the magnetic separator on spodumene and magnetic minerals can be increased, and the recovery rate of lithium can be improved. .
The ground spodumene is fed into a magnetic separator, which is equipped with magnetic rollers or magnetic materials to generate a strong magnetic field. Under the action of the magnetic field, the iron minerals with strong magnetism will be magnetically adsorbed and adsorbed on the magnetic roller or magnetic material, while the spodumene is not affected by the magnetic force and is discharged through the discharge port of the magnetic separator. The concentrate containing iron minerals obtained from the magnetic separator requires further processing.
After the magnetic separation process, the obtained magnetic concentrate contains the separated magnetic minerals and spodumene. First, the magnetic concentrate is processed to remove residual magnetic minerals and improve the purity of the spodumene. Magnetic concentrate may require further crushing and grinding. This can further refine the ore particles and improve the purity and recovery of spodumene.
Depending on the specific requirements of the spodumene ore and product specifications, further processing of the concentrate may be required. This may include repeated processes of grinding, magnetic separation and flotation to further improve the grade and purity of the spodumene. The specific concentration process will vary based on the characteristics of the ore and product requirements.
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