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The effect of the temperature of formation of metallic cobalt on its reactivity during the process of carbonyl formation

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Summary

Increase in temperature of the thermal decomposition of carbonyls reduces the reactivity of the metallic cobalt so formed. Metallic cobalt formed at 280–320°C is converted into carbonyls approximately at one-seventh of the rate of that applicable to metallic cobalt formed at 170–180°C.

Metallic cobalt obtained by reduction of carbonate at 400°C and slow cooling, is converted into carbonyls at approximately one-tenth of the rate applicable to metallic cobalt formed through thermal decomposition of carbonyls at 170–180°C.

Increase in temperature during the thermal decobaltization of the oxo-product on a stationary carrier considerably increases the uniformity of the subsequent carbonyl formation process by reducing the rate of reaction in the initial period. The time necessary for the process is only slightly reduced in such a case. Under these conditions, raw material from the cobaltization stage may be directly transferred to the carbonylization, which greatly simplifies the oxo-synthesis process.

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Gankin, V.Y., Krinkin, D.P., Rudkovskii, D.M. et al. The effect of the temperature of formation of metallic cobalt on its reactivity during the process of carbonyl formation. Chem Technol Fuels Oils 1, 760–763 (1965). https://doi.org/10.1007/BF00718677

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Keywords

  • Cobalt
  • Carbonyl
  • Thermal Decomposition
  • Formation Process
  • Initial Period