Molybdenum

The Molybdenum (The element molybdenum, whose name is derived from the Greek word "Molybdos" meaning "lead-like" (its ore is often mistaken for lead), is located in the fifth period of the periodic table with the chemical symbol Mo and atomic number 42 and has many applications. This element is not found freely. Molybdenum is usually obtained as a by-product from porphyry copper mines where molybdenite (molybdenum sulfide) is a minor constituent. The sources of molybdenum are minerals such as wulfenite (PbMoO₄), powellite (CaMoO₄), and molybdenite (MoS₂). The physical properties of molybdenum include a greyish-white color, with a shiny silver-white appearance in its bulk form and dark- gray in its powder form.

Molybdenum application

 

Molybdenum is used to enhance corrosion resistance, hardenability, and thermal stability. The highest amounts of molybdenum are utilized in the production of high-strength alloys and special steels and in the stainless steel, aerospace and foundry industries

Due to molybdenum's high resistance to heat and corrosion, it is mostly used as an alloying metal in steel, cast iron, and superalloys to increase hardness and rust resistance.

  • Chemical industries:
    Molybdenum is used as a red, bright red, orange and yellow pigment in the ink, paint, rubber and plastics industries. Molybdenum disulfide is also a good lubricant at high temperatures.

  • Catalyst:
    In the petroleum industry, this element is used in catalysts, especially catalysts for removing organic sulfur from petroleum products.

  • Electronics:
    Molybdenum is of great importance in the electronics industry due to its high temperature resistance and low coefficient of thermal expansion. Molybdenum is used in electronics, especially in conducting metal layers in thin film transistors. It was also used in the lamp industry in the past and has found very wide application today.
    Other applications of molybdenum in the electronics industry include the manufacture of heating elements, thermal radiation shields, and furnace tools made of molybdenum in hot isostatic presses and in thermal treatment furnaces.

  • Glass Manufacturing:
    Molybdenum is used as an electrode material in glass melting furnaces because it is resistant to corrosion by most glasses. It is noteworthy that products produced in such furnaces are of higher quality than glass produced in fuel furnaces. Furthermore, the glass production process using molybdenum is less harmful to the environment.

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