Back to results
US 5,326,737 AGranted
Cerium oxide solutions for the desulfurization of gases
AssigneeGas Desulfurization Corporation
InventorsD. Alan R. Kay, William G. Wilson
Life of this patent
Estimating the term…
Abstract
A solid solution for the desulfurization of sulfur containing gases is provided in which the solution contains oxides having oxygen ion vacancies provided therein. The solid solution has a solvent which has at least one lanthanide oxide which crystallizes in the fluorite habit. The solid solution has a solute which contains a second oxide having a valence which differs from the valence of the lanthanide oxide present in the solvent.
Claims9
A solid solution of oxides containing oxygen ion vacancies for the desulfurization of sulfur containing gases consisting essentially of:
- (a) no greater than 99.95 mole percent of a solvent having at least one lanthanide oxide which crystallizes in the fluorite habit;
- and
- (b) between 0.05 and about 15 mole percent of a solute having at least one second oxide capable of forming a solid solution with said at least one solvent lanthanide oxide, wherein the valence of said second oxide differs from the valence of said at least one lanthanide oxide, said at least one solvent lanthanide oxide being selected from one of the group of lanthanide oxides which do not crystallize in the fluorite habit and the group of oxides of the alkaline earth elements.
Dependencies are inferred from the claim text.