Diamond Extraction & Processing – DMS Powders

DMS Powders

Diamond Extraction & Processing – DMS Powders

Although there are various methods used world-wide for the recovery and extraction of diamonds, one of the main methods used is a process called Dense Media Separation. Dense Media separation is a process that requires the use of Ferrosilicon, an alloy of iron and silicon, to facilitate the separation process.

DMS Powders produces a range of Ferrosilicon powders, for use in Dense Media Separation processes. It is essential that the right grade of Ferrosilicon powder is used in order to facilitate effective separation of diamonds and minerals from diamond-bearing material. The characteristic of different Ferrosilicon grades differ in terms of Density, Viscosity and Stability, which are all interrelated. DMS Powders will supply you with the best Ferrosilicon grade for your Dense Media Separation process, to ensure satisfying results.

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

DMS Powders

The dense media separation process for diamond extraction

Dense Media Separation, also called the ‘sink-float’ method, requires the use of Ferrosilicon powders.

The Ferrosilicon is mixed with water to form a fine suspension until it reaches the desired density (close to the density of diamonds). The diamond or mineral bearing material is the submerged into the pulp mixture (in a cylindrical tank), in order for dense media separation to take place. Particles that are denser than the medium will report to the process underflow as sinks, while less dense particles will report to the process overflow as floats. Dense Media Separation is widely used as a diamond extraction method, due to the effectiveness of the process, and because it is cost-efficient.



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 Products for Diamond Extraction from DMS Powders

DMS Powders uses a highly sophisticated production process to produce a range of Ferrosilicon powders for dense media separation processes. The range of Ferrosilicon products from DMS Powders include:

DMS Powder packages Ferrosilicon products with easy handling, safety, durability, product integrity and the resistance against water in mind. The following sizes and packaging are available: 125kg steel drums on pallets, 250kg plastic drums on pallets and 1mt / 2mt bags loose or on pallets. Enquire today about the amounts and packaging you require.

Place your order for the Ferrosilicon products you require today

Contact DMS Powders today for more information about our Milled and Atomised Ferrosilicon products. We will supply you with the best Ferrosilicon products, suitable for diamond extraction and processing. At DMS Powders we pride ourselves in customer satisfaction, and will provide a professional and efficient service to clients in need of ferrosilicon products. Contact us today for more information or to place your order.

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+27 (0)16 360 5200