EAF dust is a waste produced during the steel production process in the Electric Arc Furnace. Each ton of steel can produce around 10-20 kg of EAF dust.

Economic value:

Although EAFD is considered to be a valuable material as it contains iron and Zn in high concentrations that can be recovered to use in different industrial fields, it’s classified as hazardous waste as it contains leachable heavy metals such as lead or cadmium and thus cannot be disposed of in ordinary landfill sites. Therefore researches have been made on recycling EAFD to reduce the negative effects on the environment and the waste disposal costs, and to recover the valuable metals in it.

Industrial Applications:

The main purpose of recycling EAF dust is to recover iron that can be used in steel or pig iron production and also to recover valuable Zn that has a wide range of applications in different industrial fields such as; Paints, Pigments, Coatings, Pharmaceuticals, Glass and Ceramics.

How the EAF dust is formed:

EAF dust is a result of the melting processes inside the Electric arc furnace. The dust is formed during the melting processes due to; the emissions from the vaporization of molten iron with other non-ferrous materials contained in the scrap, CO bursting bubbles from the decarburization process and the ejection and dragging of particles from the metal bath, slag and other materials in the oven. These emissions are converted into dust by agglomeration and physio-chemical transformations while transporting within the furnace and finally in the fume extraction system the formed dust is collected in bag filters.

Characteristics of EAF dust:

Physical characteristics:

Red-Brown solid powder, has no odor and in-soluble in water.

Chemical characteristics:

EAFD is stable under normal conditions. Major components of EAF dust are iron (25-50%), Zinc (30%) and chlorine (5%). There are other elements that can be found in lower concentrations, such as Calcium, lead, silicon, aluminum, manganese, chromium, magnesium, nickel, copper and cadmium. The concentrations of these elements may change mainly due to variations in the scrap quality and the amount charged in the electric-arc furnace. Most of these elements appear combined with oxygen. Additionally there are also fluorides, sulphates and sulphides.

Our product:

We at Dahab logistics are ready to supply EAF dust worldwide, with full customer support to ensure that all the customers’ requirements are met including quality, quantity, packaging and shipment to fulfil customers’ satisfaction.

For Specifications and Quotation Contact us.