This type of chromite contains significant magnesium oxide (MgO) in addition to iron and chromium oxides. It is commonly found in ultramafic rocks such as dunite and peridotite.
USES
Chromite is a versatile mineral with several important uses across various industries. Some of the key uses of chromite include:
Stainless Steel Production
Chromite is a primary source of chromium metal, which is a crucial alloying element in the production of stainless steel. Stainless steel is widely used in construction, automotive, aerospace, kitchenware, and other applications due to its corrosion resistance, durability, and aesthetic appeal.
Alloy Production
Chromite is also used in the production of various alloy steels, including tool steels, high-strength low-alloy (HSLA) steels, and heat-resistant alloys. These alloys find applications in manufacturing, machinery, infrastructure, and aerospace industries.
Refractory Materials: Chromite is utilized in the manufacture of refractory bricks and shapes for lining high-temperature furnaces and kilns. Chromite-based refractories offer excellent thermal and chemical resistance, making them suitable for use in steelmaking, glassmaking, cement production, and other industries.
Chemical Industry
Chromium compounds derived from chromite are used in the chemical industry for various purposes. Potassium dichromate, sodium dichromate, and chromic acid are examples of chromium compounds used in pigments, dyes, wood preservatives, tanning, electroplating, and other chemical processes.
Foundry Sands
Chromite sands are used as molding sands and core sands in foundry applications. They provide excellent thermal stability, resistance to heat and abrasion, and help produce high-quality castings in metal foundries.
Chrome Plating
Chromium metal derived from chromite is used for electroplating applications to impart a decorative, corrosion-resistant chrome finish to various metal objects, such as automotive parts, plumbing fixtures, and consumer goods.
Catalysts
Chromium-based catalysts, derived from chromite, are employed in several industrial processes, including petroleum refining, polymerization, and environmental remediation.
Agriculture
Chromium compounds are sometimes used as micronutrient supplements in agriculture to improve plant growth and health.
Overall, chromite plays a critical role in various industrial sectors, contributing to the production of essential materials and products that are integral to modern society.
