Ferrosilicon – Frequently Asked Questions

Ferrosilicon - Frequently Asked Questions - DMS Powders

What is Ferrosilicon?

Basically, Ferrosilicon (FeSi) is a ferroalloy of silicon and iron. The ratio in which the silicon and iron substances are combined differs, with the weight percentage of silicon ranging between 15% and 90%. 

Read more here - What is Ferrosilicon

How is Ferrosilicon produced?

The production process of ferrosilicon entails the reduction of silica, sand and coke, whilst in the presence or iron. Depending on the silicon content, this process will either take place within a blast furnace or electric arc furnace.

What Ferrosilicon products are available from DMS Powders?

DMS Powders supplies the following Ferrosilicon products:

  • Atomised ferrosilicon (which possesses a spherical shape) is available in the following ranges: Coarse, Fine, Cyclone 60, Cyclone 40 and DMS 70. Products are used in applications where the separating density is greater 3.0sg (specific gravity).
  • Milled ferrosilicon is widely used in applications where the separation medium is lower than 3.2sg. The range of milled ferrosilicon is produced directly related to the size distribution, namely 65D, 100D, 150D, 270D and 270F.

What are the physical properties of Ferrosilicon?

  • Melting point between 1210°C and 1380°C.
  • Boiling point: 2355°C.
  • Shape / appearance: Particles can be spherical or irregular.
  • Colour: Silver to dark grey.
  • Corrosion and abrasion resistant.
  • Odourless but harmful if inhaled.
  • Combustible dust particles.
  • Atomised FeSi

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

  • Milled FeSi

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

 

What is Ferrosilicon used for?

There are a number of uses of Ferrosilicon products, including, but not limited to:

  • Deoxidizing steel: Ferrosilicon is used in steelmaking industries, deoxidizing steel as well as other ferrous alloys. This helps to prevent loss of carbon from molten steel.
  • Dense media separation of diamonds: Ferrosilicon products are widely used in Diamond Processing plants, in the dense media separation process. Ferrosilicon powders in combined with a liquid base to form a pulp of the desired density. Diamond bearing material is the submerged into the pulp, which will ultimately separate the diamonds from other materials via gravity.
  • Heavy media separation: Ferrosilicon is widely used in the metallurgical industry for the processes of atomisation, melting and heavy media separation reactions.
  • Pre-alloys: Ferrosilicon is used in the manufacturing of pre-alloys such as Magnesium ferrosilicon and other.

What is Dense Media Separation?

Dense Media Separation is a sink-float method used within the coal, iron ore and especially diamond industries. The powdered ferrosilicon is suspended in water to form a very specific pulp density (heavy liquid), 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. Heavier minerals will then sink in the slurry, whilst the lighter materials will rise to the surface.

Does DMS Powders distribute Ferrosilicon products internationally?

DMS Powders is a leading distributor of Ferrosilicon products, distributing locally and internationally.

What package sizes of Ferrosilicon is available from DMS Powders?

Choose from different sized Ferrosilicon packaging including: 125kg steel drums on pallets, 250kg plastic drums on pallets and 1mt & 2mt bags loose or on pallets.

How do you select the right Ferrosilicon grade?

There are a few factors to consider when choosing the right Ferrosilicon grade for your application. This includes the Viscosity, Stability and Density of the medium DMS Powders will help you to obtain the best Ferrosilicon grade for your needs

Where can I get more information about DMS Powders and their products?

Contact the leading producer of Ferrosilicon products today for more information about our products and to place your order. Our professional consultants will assist. 

Packaging

Our packaging has been specifically designed for:

  • Ease of handling
  • Safety
  • Product integrity
  • Durability
  • Water resistance
  • 125kg steel drums on pallets

  • 250kg plastic drums on pallets

  • 1mt & 2mt bags loose or on pallets.

How is ferrosilicon produced?

The production of Ferrosilicon involves the reduction of sand or silica (Si) with coke / coal (C), and then reacting it with iron (Fe) which can be obtained from scraps. This process will usually happen blast furnace or electric arc furnace. The carbon in the coal is necessary to remove the oxygen, leaving a clean Silicon and Iron product as result. The perfect chemical composition needs to be reached to achieve ferrosilicon products with the desired densities and in the right grades.

What is the chemical composition of Ferrosilicon?

The usual chemical composition of Ferrosilicon is a Silicon content of 15%, 45%, 75%, or 90%. Most of the remaining compound are made up of iron, with about 2% of other elements, usually aluminium and calcium.

Is Ferrosilicon toxic?

Yes, ferrosilicon is quite toxic, and direct contact should be avoided. When exposed to moisture, ferrosilicon can produce toxic and flammable gasses, hazardous to human health. Ferrosilicon can cause irritation to the skin and eyes, and an irritated respiratory tract when inhaling the gasses. The necessary precautions should be made when handling the product, including personal protective equipment such as filter respirators, goggles, protective gloves and clothes. DMS Powders package ferrosilicon products effectively to ensure safe handling and management without posing a risk, in containers and packaging that are also waterproof.  

How should you store ferrosilicon?

The ferrosilicon containers supplied by DMS Powders are suitable for storing. First ensure all containers are properly closed when being stored. The ferrosilicon containers should be kept in a dry and well-ventilated area.

Source: www.chemistrylearner.com

What is a DMS Plant?

A DMS plant, or Dense Media Separation plant, is where diamond recovery / processing takes place. The plant is designed to provide the ideal environment for the process of dense media separation of diamonds, using the law of gravity. Dense Media Separation requires the use of powdered Ferrosilicon, which is combined with water to reach a certain density. The diamond bearing material is added to the mixture, in order for Dense Media Separation to take place. Read more about what a DMS plant is.

Atomized vs. Milled Ferrosilicon

Not sure about Milled vs. Atomized Ferrosilicon for your process needs? Milled 15% Ferrosilicon is the most cost-effective option, but quality is however not always constant, leading to difficult operation and inconsistent consumption.  Finer grades of Ferrosilicon, leading to higher milling costs, yet causes higher loss. Atomized Ferrosilicon, although more expensive of the two Ferrosilicon ranges, offers lower (and more consistent)consumption. Let the team at DMS Powders assist you to find the correct grade of Ferrosilicon that will meet your application needs. Our team will offer you all the technical assistance you need.

How Ferrosilicon is used diamond processing plants

Ferrosilicon is used in a number of different applications and industrial processes, but mainly in diamond processing plants. Ferrosilicon is used to create a medium with a very specific density that will facilitate the separation of diamonds from diamond-bearing material, by means of dense media separation / the sink-float method. Ferrosilicon is manufactured in different grades, each with slightly different characteristics and properties, which makes it easier to select the right grade for use in diamond processing plants. Let a consultant at DMS Powders help you to find the best grade of Ferrosilicon for use in diamond processing plants. Read more about how Ferrosilicon is applied in diamond processing plants, or contact DMS Powders today for assistance.

Mineral processing product suppliers in South Africa

Mineral processing plants require the use of a number of products and equipment to facilitate Dense Media Separation.  DMS Powders is a leading mineral processing product supplier in South Africa, producing a selection of Ferrosilicon products in different grades for use in the mineral processing industry. Ferrosilicon in widely used by DMS plants across the world, offering users an effective method to separate diamonds and minerals from mineral bearing material. Contact the trusted mineral processing product supplier in South Africa to order your Ferrosilicon products.

Does DMS Powders distribute ferrosilicon products to clients across Africa?

DMS Powders is a leading distributor of Ferrosilicon products in Africa, and will provide your company / mineral processing plant in Africa with quality Ferrosilicon products. Talk to a consultant today about exporting the Ferrosilicon products you need to the location you are based in. DMS Powders will aim to assist as far as possible. Contact the leading distributor of Ferrosilicon products in Africa today to get the product you need for your specific application.

Diamond Recovery Products

DMS Powders is a leading producer and supplier of a diamond recovery product, namely Ferrosilicon, which is widely used in the diamond processing industry. Ferrosilicon provides an effective and cost-efficient method for mineral processing, which is why it is the most popular method when it comes to diamond separation techniques. Contact DMS Powers today for more information about our diamond recovery product, Ferrosilicon, and to place your order. There are various grades of Ferrosilicon available, including Milled and Atomised Ferrosilicon, to meet the different needs of our clients' processes.

 

Specifications and grades of Ferrosilicon

There are various grades of Ferrosilicon with different specifications, to meet the needs of different applications. DMS Powders supplies a wide range of Atomised and Milled Ferrosilicon products, with different specifications. If you are looking for a specific grade of Ferrosilicon that possesses certain specifications, talk to a consultant at DMS Powders today. We will advise you on the different grades of Ferrosilicon, and help you t select the best grade for your specific needs. Read more about the specifications of Ferrosilicon, or simply contact our company today. DMS Powders is a leading supplier of Milled and Atomised Ferrosilicon powders in Africa, supplying client across the globe with quality Ferrosilicon products that meet their specification needs.

 

International supplier of Ferrosilicon

Looking for an International supplier of Ferrosilicon? Let DMS Powders assist. As a reputable International supplier of Ferrosilicon, you can expect quality products supplied according to your specifications. Our Ferrosilicon products are packaged to ensure safe and easy transportation, and are available in various package sizes to meet your needs. Trust the leading producer of Ferrosilicon products to supply you with quality Atomised and Milled Ferrosilicon Powders. Read more about Ferrosilicon products from this International supplier of Ferrosilicon, or speak to a professional consultant today to place your order.

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