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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Authors
Dates
2015-04-20—Published
2013-07-03—Filed