METHOD OF METALLIC COATING APPLICATION TO MICROSPHERES Russian patent published in 2018 - IPC C03C17/25 C03B19/10 

FIELD: technological processes.

SUBSTANCE: method of metallic coating application to microspheres by pyrolytic decomposition of organo-metallic compounds involves the interaction of organo-metallic compound vapours with the microsphere surface, heated up to a temperature below the softening temperature, stirring the microspheres. The microsphere stirring is performed in the presence of organo-metallic compound vapours. The quantity of the organo-metallic compound as related to the quantity of the microspheres is determined by the dependence on the required coating thickness where m_MS is the charging weight of microspheres, g; m_OMS is the weight of the organo-metallic compound, g; ρ_d is the coating density, g/cm³; is the specific surface of the microspheres, cm²/g; k₁ is the factor of conversion of the parent compound into the coating material, k₂ is the material utilisation rate and determined by the chamber volume and the ratio of the microsphere area to the chamber (varies from 0.30 to 0.95).

EFFECT: improvement of the method.

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