Turn Waste Product into Other Uses by Using Mill Scale

Mill scale refers to a material that develops during the oxidation of steel with operations such as:

  • Hot press
  • Hot rolling
  • Hot forming
  • Continuous casting
  • Heating/reheating
  • Flame scarfing
  • Conditioning

Besides precious or semi-precious metals, all other types of metal can be found in environment as oxides. This corrosion of the surface of steel unstructured becomes ferrous oxide which results in the making of mill scale. While cast-off early in the process as an inevitable waste product that is made during the making of steel it is possible nowto remove the mill scale by processes of waters and gravity separation and using this by-product in several ways.


Mill scale by-product is able to be mixed with copper inthe hot rolling and forging procedures to produce the negative plates or electrodes in the alkaline batteries.



Mill scale can be used in chemical procedures as catalysts needs iron oxides for the production of acetic acid.

Cement clinker

By the addition of mill scale in the area that is combustion during the expansion of ‘cement clinker’ convert possibly-dangerous and unwanted hydrocarbon gases into products that are less explosive. Mill scale can be used as a raw material for making cement clinker by mixing it with feedstock ingredients prior to the introduction of the raw material into the heated rotary kiln.


Composite counterweights frequently used in industrial manufacturing procedures and machines consist of a by-product and waste-product in an industrial route that is processed with material of constant mass. Mill scale is part of the waste-products/by-products that is used in the making of counterweights. The product that is prepared in this way can then be used in the finished equipment or machines.

Mill scale is being used in place of concrete in washing machines as counterweights. The material after mixing with water can then be used as ‘filling’ material. The counterweights can then be used in the manufacturing procedure as well as for making general transportation machinery equipment.

Heat conservation

Use of mill scale for separation of volatile metals, slag, iron, and other impurities simplifies the heat conservation as well as improves the efficiency of energy. Processing waste materials in an ‘Electric Arc Furnace’may help improve output, productivity and reducing wastage. Heat conservation helps to avoid wastage of resources unnecessarily when processing waste materials.

Generation of exothermic power

The combination of waste products produced with the manufacturing procedure of metals that are heavy with mill scale results in a matter of low-density that can be put into the furnace to produce an exothermic reaction without any unnecessary use of raw materials.

Iron Feedstock

Mill scale is a waste creation that is very rich in iron. The material can be mixed with other industrial by-products and waste to make“iron feedstock” for the development procedure. Mill scale can be treated through leaching, roasting, and other processes.


The refinement of Ferro-alloys involves adding oxidizing agents that combine with the impurities sending them to rise to the surface. Or, the slag will detach or get dispersed as by the by-product gas. Mill scale is a suitable material for oxidation which removes impurities from the alloys.

Mixed fertilizers

Magnetic additives that are carriers can improve the efficacy and performance of fertilizers that are mixed. Mill scale is used as the magnetizing means to deliver added nutrients to the crop. Mill scale is also used as an agent of de-siliconization that is an imported part of the phosphate fertilizer manufacturing procedure.

Other uses

Mill scale can also be used in the making of chemicals for water-treatment that are used in forestry, agricultural, fishing, and other scientific actions connected to development and research.


Mill scale is a multipurpose by-product that can be used for binding, coloring, heat transfer, viscosity adjustment, lubrication, and as meansof absorbing or binding liquids and gases. If your company needs mill scale or other Fe materials research to see if mill scale is the best use for your purpose.


These are a few ways that a waste or by-product can be used in other matters. For further information you can contact http://mineralrecycling.com/