The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 17, 1989

Filed:

Aug. 23, 1988
Applicant:
Inventors:

Masami Shino, Wakayama, JP;

Hideaki Takano, Wakayama, JP;

Jitsuo Nakata, Wakayama, JP;

Katsuhiko Noro, Wakayama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; C01B / ;
U.S. Cl.
CPC ...
423262 ; 55 28 ; 55 66 ; 55 68 ; 4232453 ;
Abstract

This invention provides a manufacturing process which produces highly purified Xenon economically and safely with high recovery efficiency. In this invention liquid oxygen containing Xenon, which is vented from the main condenser in the upper rectification column of the air separating unit, is sequentially fed into multiple adsorptive columns filled with an adsorbent to selectively adsorb the Xenon. By a sequence of adsorbing-desorbing steps, Xenon is gradually condensed and, at the final state, highly purified Xenon is recovered. Hydrocarbons (CmHn) are removed from the product gas by a catalytic process. Xenon at a purity as high as 99.995% and at a yield as high as 95% is obtained by use of the present process.


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Shino, Masami. (1989). Production process of xenon (U.S. Patent No. 4874592). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4874592

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