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Cadmium Cadmium

Zinc Refinery, Ust-Kamenogorsk Metallurgical Complex, produces some small amounts of cadmium. This metal is by-product of zinc feed treatment.

Product Name:

Cadmium

Production Site

Zinc Refinery, Ust-Kamenogorsk Metallurgical Complex

Process Flowsheet

Leaching, 2 stage Cd cementation, Cd powder briquetting, melting, vacuum refining of cadmium sponge (Zn feed treatment product)

Production output per year:

1200 tpa

Application

  • jewellery
  • Cadmium is used in jewellery in binary gold alloys (green), three-component alloys with gold and silver, etc. Cadmium imparts diverse hues to precious metals.
  • nuclear reactors
  • Cadmium is good at absorbing neutrons and is therefore used to make control rods that adjust the nuclear reaction rate
  • fire extinguishers
  • The melting point of low-melting alloys of cadmium with lead, tin and bismuth is lower than water. These alloys are used for electric fuses, fire detectors, plugs for automatic fire extinguishers and steam boilers.
  • paints
  • Cadmium sulfide is used in oil paint and color wash. Has high covering capacity, resistant to hydrogen sulfide, sulfur dioxide gas and other impacts.

Cd (min)

99.960%

Zn (max)

0.004%

Pb (max)

0.020%

Fe (max)

0.0020%

Cu (max)

0.010%

Tl (max)

0.003%

Impurities, max

0.040%

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