What is Heavy Media Gravity Separation?

DMS Powders

What is Heavy Media Gravity Separation? – DMS Powders


Gravity separation is a method used to separate two components (in industrial applications). The process involves either a suspension, or a dry granular mixture that will allow the separation of the components to take place.

The components of the suspension or mixture require a different specific gravity in order for separation to take place. In essence, heavy media gravity separation is a process to separate products with different densities. The term sink-float separation is also widely used, as this basically explains how the process works. Components with a higher density than the slurry will sink to the bottom, while components with a lower density will rise to the top – ultimately separating the different components effectively.

DMS Powders:

The role of Ferrosilicon in heavy media gravity separation in mineral processing

The mineral processing industry widely makes use of heavy media gravity separation, as this offers an effective en economical method to process minerals, separating minerals from other material. In the case of heavy media separation of diamonds, Ferrosilicon powders are used in the heavy media separation process, also called dense media separation.

The Ferrosilicon powder is mixed with water to form the slurry in which the diamonds will be separated from the other components and material. There are a number of different Ferrosilicon products available featuring different specifications, in order for the correct density to be achieved for the process.  

In the process of heavy media gravity separation of diamonds, a powdered ferrosilicon is mixed with water to form a defined pulp / suspension with a specific density. This heavy liquid’s density is close to the density of diamonds (3.52 g/cm3). The diamond bearing material is then added to the fluid, which will start the separation process of the heavier minerals from the lighter material.

Ferrosilicon is an alloy of iron (FeSi), which is formed by melting silicon with quarts, and some scrap iron, usually in an arc furnace. DMS Powders is a leading supplier of Ferrosilicon products for use in the process of Dense Media Separation of diamonds.

DMS Powders will supply you with the right grade of Ferrosilicon powders. There are a number of different grades of Ferrosilicon available including:

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

What We Stand For

Our Vision
DMS Powders will continue to be a world class market leader in the production, distribution and marketing of dense media ferrosilicon powders.
Our Mission Elements
  • Profitably maintain our core business through excellence in production, distribution and marketing.
  • Develop and enhance global alliances and external relationships to secure optimal market knowledge and increase strategic and operational flexibility.
  • Empower employees with knowledge and resources to act in accordance with core values.
  • Create industry benefit by providing opportunities for shared technical knowledge and skills.
  • Actively manage and build our portfolio of high-quality assets and services.
  • Continue the drive towards a high-performance organisation, in which every individual accepts responsibility and is rewarded for results.
  • Earn the trust of employees, customers, suppliers, communities and shareholders by being forthright in our communications and consistently delivering on commitments.
Our Values
  • Ethics: Uncompromising honesty, integrity, trust and reliability in our dealings with each other.
  • Excellence: Setting high standards in every aspect of business and continuously striving to outperform them.
  • Prosperity: Pursuance of productivity and effectiveness to create a fair value proposition for shareholders, customers, employees and suppliers.
  • Sustainability: An overriding commitment to safety, environmental responsibility and sustainable development.
Key Principles
Automised FeSi

Coarse, Fine, Cyclone 60, Cyclone 40, DMS 70

Milled FeSi

65D, 100D, 150D, 270D, 270F

DMS Powders

Packaging


Our packaging has been specifically designed for:

Ease of handling

Safety

Product integrity

Durability

Water resistance

Contact DMS Powders for more information about our ferrosilicon products

DMS Powders will help you to select the best Dense Media Separation Powders (Ferrosilicon) to get the best products for your application needs. Talk to a consultant today about our atomised and milled ferrosilicon products for your heavy media gravity separation process. DMS Powders has gained extensive experience in the production and application of Ferrosilicon in heavy media separation processes. Our professional team will ensure you obtain the best ferrosilicon products and supply the technical support you need for a successful process.