Preparation of spheroidized particles

Details Preparation of spheroidized particles Preparation of spheroidized particles

1975-02-24

1978-02-28

Pianalto, Bernard D.

Compositions

Electrolytes for electrical devices

75 5B, 75 10R, 264 15, 427127, C21C 552, H05B 718

Patent

active

040766403

ABSTRACT:
A method of manufacturing spheroidized beads comprising the steps of introducing raw ore particles in the presence of an inert non-oxidizing carrier gas to a carbon arc plasma flame assembly to which is fed a controlled amount of oxygen and argon gas, melting the ore particles to form spheroidized droplets thereof, allowing the spheroidized droplets to fall by gravity in a substantially closed chamber having a controlled atmosphere wherein the droplets cool and solidify into beads, and collecting the beads.

REFERENCES:
patent: 3239465 (1966-03-01), Rheinfrank
patent: 3247014 (1966-04-01), Goldberger et al.
patent: 3417167 (1968-12-01), Kizer et al.
patent: 3556998 (1971-01-01), Steiner
patent: 3558492 (1971-01-01), Proskow
patent: 3576672 (1971-04-01), Harris et al.
patent: 3627682 (1971-12-01), Hall et al.
patent: 3742585 (1973-07-01), Wentzell
patent: 3989512 (1976-11-01), Sayce

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