Home Product Knowledge What are the beneficiation processes of spodumene?

What are the beneficiation processes of spodumene?

2023-04-17 Xinhai (247)

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Spodumene is a lithium-bearing mineral that is commonly used as a source of lithium. The beneficiation of spodumene is generally carried out by a combination of gravity, magnetic, and froth flotation methods. The specific beneficiation process used depends on the composition of the ore, as well as its physical and chemical properties.

Gravity Separation:

Gravity separation is a commonly used method for spodumene beneficiation. The main advantage of this method is that it does not require any chemicals or reagents, making it a more environmentally friendly option. In this process, heavy liquid separation or jigging is used to separate the spodumene from gangue minerals based on their density differences.

Magnetic Separation:

Magnetic separation is another common method for spodumene beneficiation. This method is based on the magnetic properties of minerals. The spodumene is separated from other minerals using a magnetic separator. This process is often used to remove iron-bearing minerals from spodumene ore.

Froth Flotation:

Froth flotation is the most widely used method for spodumene beneficiation. In this process, the spodumene is selectively separated from other minerals using froth flotation reagents. The ore is first ground to a suitable size and then mixed with water and flotation reagents. The mixture is then agitated, and air is bubbled through it. The spodumene particles attach to the bubbles and are carried to the surface, where they can be collected.

Acid Roasting:

Acid roasting is a process used to treat spodumene ores that are difficult to beneficiate using conventional methods. In this process, the ore is heated with sulfuric acid at high temperatures to convert the spodumene into a water-soluble form. The soluble lithium compounds are then separated from the gangue minerals using water.

Alkaline Roasting:

Alkaline roasting is another process that can be used to treat spodumene ores. In this process, the ore is heated with a mixture of sodium hydroxide and sodium carbonate at high temperatures. The spodumene is converted into a water-soluble form, and the lithium compounds are then separated from the gangue minerals using water.

In summary, the beneficiation of spodumene is a complex process that involves a combination of physical and chemical methods. The specific beneficiation process used depends on the composition of the ore, as well as its physical and chemical properties.


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