Process for preparation of water-free oxychloride material
AssigneeHughes Aircraft Company
InventorsRicardo C. Pastor, Antonio C. Pastor, Luisa E. Gorre, Remedios K. Chew
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Abstract
The specification discloses a process for forming a water-free rare earth oxychloride powder by exposing a water-containing rare earth oxide powder to a reactive atmosphere of chlorine and oxygen at 1000.degree. C. for 24 hours to remove water impurities from the oxide powder and to simultaneously convert the oxide powder to the oxychloride powder.
Claims2
A process for the preparation of a water-free rare earth oxychloride powder from a water-containing rare earth oxide powder comprising the step of exposing said water-containing rare earth oxide powder to a gas phase reactive atmosphere comprising chlorine and oxygen at 1000.degree. C. for 24 hours to produce a chemical reaction with and removal of water and water-derived impurities in said oxide powder and to simultaneously convert said rare earth oxide powder to said rare earth oxychloride powder.
Dependencies are inferred from the claim text.