초록 ▼

A mixture of noble gases having desirable insulative properties for use as a window fill gas is derived from an air separation process without substantial further separation or concentration of the noble gases in the mixtures. The mixture of noble gases is processed to form the fill gas using relati

A mixture of noble gases having desirable insulative properties for use as a window fill gas is derived from an air separation process without substantial further separation or concentration of the noble gases in the mixtures. The mixture of noble gases is processed to form the fill gas using relatively economical catalytic oxidation processes and drying techniques to provide a suitable fill gas. The processed noble gas or fill gas may contain from about 89 to 95% krypton, 5 to 8% xenon and 0.5 to 2% contaminants including oxygen, nitrogen, hydrocarbons and other constituents typically found in air separation processing.

대표청구항 ▼

[ What is claimed is:] [17.] A window having a window gas space filled with a fill gas formed of a rare gas stream from an air separation process containing krypton and xenon, said krypton and xenon being concentrated in said rare gas stream to form said fill gas without substantially exceeding the

[ What is claimed is:] [17.] A window having a window gas space filled with a fill gas formed of a rare gas stream from an air separation process containing krypton and xenon, said krypton and xenon being concentrated in said rare gas stream to form said fill gas without substantially exceeding the maximum concentration of krypton and xenon beyond that in the rare gas stream, said fill gas consisting essentially of from about 92% to about 98% krypton, from about 2% to about 8% xenon and less than 0.05% contaminants.