• Slag

  • Slag

Slag

Slag is a by-product of the ore-smelting process. There are two types, namely electro slag and converter slag, each of which can be used in various applications, such as an insulation material, as an abrasive, or in the construction of roads. It is also widely utilized in the cement industry which makes it particularly useful. Both types of slag are produced at FENI Industries in Kavadarci and NewCo Ferronikeli in Drenas. Our Slags are registered under REACH regulation.

PRODUCT Electric-furnace slag FENI Converter slag FENI Granulated EF slag Ferronikeli Converter slag NewCo Ferronikeli
REACH registration nb 01-2119557919-18-0001 01-2119557919-18-0001  
Producer FENI Industries – Macedonia FENI Industries – Macedonia NewCo Ferronikeli – Kosovo NewCo Ferronikeli – Kosovo
SiO2 (%) 40-50 0.2-1.0 60 1.0-2.0
Fe total (FeO) (%) 15-20 (19-26) 50- 60 (64–77) 14 (18) 50- 55 (64–70)
MgO (%) 18 1.0 - 5.0 8 1.0 - 5.0
CaO (%) 3 15-22 9 17-22
Cr2O3 (%) 2.5 0.4 - 0.8 1.4 0.5 - 1.5
Al2O3 (%) 2.8 0.1 - 0.6   0.1 - 0.6
S (%) 0.1 0.3-0.5   0.4-1.0
Ni (%) 0.06 0.3-0.6 0.04 0.3-0.6
Chemical family Iron oxides and other oxides Iron oxides and other oxides Iron oxides and other oxides Iron oxides and other oxides
Moisture (%) < 0.1 0.5 – 2.0 3 0.5 – 2.0
LOI (%) < 0.1 < 0.1 < 0.1 < 0.1
Leaching (%) < 0.1 < 0.1 < 0.1 < 0.1
Ecotoxicity None None None None
Specific density (t/m3) 3.3 4.0 – 4.6 3.3 3.9 – 4.2
Bulk density loose (t/m3) 2.3   1.4  
Bulk density compacted (t/m3) 2.5      

Sandblasting / High density submarine oil and gas pipe coating aggregate / Additional iron to clinker (Substituting the raw material in cement industries with our slag allows deduction of the ton of CO2 that plants would otherwise have accounted in their carbon balance) / Railway ballast / High strength concrete / Beach aggregate / Granular base for road construction.

Check the other products

FeNi Granules (22% Ni)

FeNi Granules (16% Ni)

REACH and CLP