Gravity Separation Mineral Processing Technique

Gravity Separation Mineral Processing Technique

Gravity separation is an effective method that is used to separate diamonds and minerals from diamond-bearing material. This technique is used by diamond and mineral processing plants across the globe, due to its simplicity, cost-effectiveness and effective results.

Read more below about what gravity separation processes entail, or get the best Ferrosilicon products to facilitate your gravity separation process from DMS Powders today – leading supplier of Ferrosilicon for Gravity Separation Processes.

Atomised FeSi: Coarse, Fine, Cyclone 60, Cyclone 40, DMS 70
Milled FeSi: 65D, 100D, 150D, 270D, 270F

What is a Gravity Separation Process?

Gravity Separation is an industrial process used to separate two components from a suspension medium, through the use of gravity. One popular Gravity Separation method that is used in diamond and mineral processing, is Dense Media Separation. Dense Media Separation involves the use of Ferrosilicon powder, which is mixed with water to achieve a mixture of a very specific density. The mineral bearing material is immersed into the tank with the mixture (cyclone), to start the separation process. The cyclonic movement will initiate the separation of the minerals and diamonds from the material, by pushing the diamonds and minerals to the sides or bottom of the tank. This is because the two components have different densities, making the heavier material sink, and letting the lighter material float. This process is also referred to as the ‘sink-float’ method. Gravity Separation is also used in a number of other applications such as recycling, separating steel / metals from waste, slag re-processing, the recovery of precious metals and many more.

The gravity separation mineral processing technique has been used for centuries, as it is low cost and effective.


Our packaging has been specifically designed for:

Ease of handling
Product integrity
Water resistance

125kg steel drums on pallets

250kg plastic drums on pallets

1mt & 2mt bags loose or on pallets

Ferrosilicon for Dense Media Separation

DMS Powders is a reputable manufacturer of Ferrosilicon powders, specifically for use in the Dense Media Separation of diamonds. Ferrosilicon (FeSi) is a ferroalloy of silicon and iron. Ferrosilicon powder is available in different grade and types, and DMS Powders manufacture the following Ferrosilicon products:

  • Atomised Ferrosilicon: Coarse, Fine, Cyclone 60, Cyclone 40 and DMS 70.
  • Milled Ferrosilicon: 65D, 100D, 150D, 270D and 270F.

DMS Powders distributes Ferrosilicon products to customers across the globe. Our products are available in different packaging sizes, and are packaged with ease of transportation, safety and easy handling in mind.

If you require quality Ferrosilicon products for your Gravity Separation Mineral Process, get the products and advice you need from DMS Powders. Contact us today to speak to a professional consultant, and to place your order.

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