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In the metallurgical industry, mainly for the production of ferrochrome ore ferrochrome and chromium. Ferrochromium alloy is used as a steel additive to produce a variety of high-strength, corrosion-resistant, wear-resistant, high-temperature, oxidation-resistant special steels, such as stainless steel, acid-resistant steel, heat-resistant steel, ball bearing steel, spring steel, tool steel and so on. Metal chromium is mainly used to smelt special alloys with elements such as cobalt , nickel and tungsten. These special steels and special alloys are indispensable materials for aerospace, aerospace, automotive, shipbuilding, and defense industries for the production of guns, missiles, rockets, and ships.
On the refractories, chromite used to make chrome brick, magnesium, chromium and other special refractory brick.
Chromite is mainly used in the chemical industry to produce sodium dichromate, which is used to prepare other chromium compounds for use in industries such as pigments, textiles, electroplating, and tanning, as well as catalysts and catalysts.
Chromite is a shortage of minerals in China, with low reserves and low output. More than 80% of annual consumption depends on imports.
SUMMARY Chromium is an important strategic material, since it has a hard, wear-resistant, high temperature resistance, corrosion resistance and other characteristics, has been widely used in the metallurgical industry, chemical industry, and refractories.