Title: Method of preparing magnesium oxide spheroids

Abstract: A method of making sized refractory spheroids of magnesium oxide having consistent electrical resistance properties directly from particulate magnesium ore without crust and substantially free from contaminates by feeding particulate magnesium ore from a supply reservoir into a plasma zone of a plasma generator capable of melting particulate solids from the outside inwardly. The melted particles of the refractory magnesium ore are collected directly from the plasma zone in individual particulate and substantially spherical forms.

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Inventors: Dickey, Clarence A. (Atlanta, GA, US)
Smoot, Thomas W. (Atlanta, GA, US)

Application Number: 368725
Filing Date: 1973-06-11
Publication_date: 1976-03-09
Assignee: Glasrock Products, Inc. (Atlanta, GA)
Primary Class(es): 264/15 65/142
Other Classes:
US Patent Ref:

3171714	Mar, 1965	Jones et al.	264/15.
3645894	Feb, 1972	Krystyniak	264/15.

Other Refs:
Primary Examiner: White, Robert F.
Assistant Examiner: Hall, J. R.
Attorney: Lane, Aitken, Dunner & Ziems