METHOD OF PRODUCING ULTRA-DISPERSED ZINC POWDER Russian patent published in 2015 - IPC B22F9/16 

Abstract RU 2548357 C2

FIELD: process engineering.

SUBSTANCE: invention relates to production of ultra-dispersed zinc powder. This process comprises zinc wire feed to continuous laminar gas flow and heating it in HF field of counter-current inductor to fusion point. Fused drops are formed at wire end suspended in inductor field. Saud fuse drop is evaporated by said laminar gas flow with vapour condensation to metal zinc particles. Said particles are discharged, cooled and caught by filter. Said laminar gas flow represents a downstream reducing agent gas flow. Said reducing agent consists of hydrogen or its mix with inert gas to allow reduction of refractory zinc oxide to metal on drop surface.

EFFECT: continuous production of said powder in free bulky state.

6 dwg, 5 ex

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RU 2 548 357 C2

Authors

Lejpunskij Il'Ja Ovseevich

Zhigach Aleksej Nikolaevich

Kuskov Mikhail Leonidovich

Berezkina Nadezhda Georgievna

Dates

2015-04-20Published

2013-07-03Filed