PURPOSE: To easily produce ultrafine oxide particles with extremely high efficiency with an extremely simple device by burning metallic powder in oxygen (contg. gas).
CONSTITUTION: A carrier gas ejected from a nozzle 11 forces the metallic gas in a powder storage vessel 1 to solar up and conveys the powder by the gaseous flow through a transport pipe 2. The gas is then ejected from a combustion nozzle 3 into a combustion pipe 4. The oxygen can be further replenished thereto through an oxygen nozzle 61 provided to the periphery of the nozzle 3. The smoke-like ultrafine oxide particles are formed when the metallic powder ejected into the combustion pipe 4 is ignited and burned by a pilot burner 41 attached to the pipe 4. The formed ultrafine oxide particles are collected by the collector 5. The quality of the ultrafine oxide particles obtd. by such extremely simple device is approximately equal to the quality of the particles obtd. by the conventional dry process. The production of the ultrafine oxide particles with the extremely high efficiency is thus made possible without using costly raw material, device and fuel.
IIJIMA SUMIO
HIRAYAMA TSUKASA
IIJIMA SUMIO
| JP38007707A | ||||
| JP39010306A | ||||
| JPS6071037A | 1985-04-22 | |||
| JPS60255602A | 1985-12-17 | |||
| JP37008045A |