METHOD OF PRODUCING HOLLOW CERAMIC MICROSPHERES WITH CALCULATED PARAMETERS Russian patent published in 2015 - IPC C03B19/10 

FIELD: chemistry.

SUBSTANCE: according to the invention, a fraction with average effective particle diameter D₀ is separated from a starting powder with porosity P = 1-ρ₀/ρ_true, where ρ₀ is the bulk density of the particles of the starting micropowder, ρ_true is the true (theoretical) density of the material of the micropowder, said diameter being calculated using the mathematical relationship: where D₁ is the calculated diameter of the obtained hollow ceramic microspheres, ρ₁ is the calculated bulk density of the obtained hollow ceramic microspheres. Melting is then carried out in a stream of low-temperature plasma, followed by separation from the obtained hollow ceramic microspheres a fraction with average calculated diameter D₁, the density of which is equal to the calculated value ρ₁.

EFFECT: obtaining microspheres with a given external diameter, bulk density and shell thickness.

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