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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.

Patent No.:

US 5082602 B1

PDFFull Text
Date of Patent:
Jan. 21, 1992

Filed:

Aug. 20, 1986

Process and apparatus for regenerating spent reprocessing extraction

Applicant:
Inventors:

Naohito Uetake, Hitachi, JP;

Ietsugu Sekine, Hitachi, JP;

Haruo Hasimoto, Hitachi, JP;

Tetsuo Fukasawa, Hitachi, JP;

Hajime Iba, Katsuta, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry, Stout & Kraus

Primary Examiner:

Howard J Locker

Int. Cl.
CPC ...
G21C / ; G21F / ; C01G / ; C01G / ;
U.S. Cl.
CPC ...
252627 ; 21050023 ; 210638 ; 210649 ; 210682 ; 210683 ; 252364 ; 252626 ; 252631 ; 376313 ; 423-6 ; 423-7 ; 423 70 ; 4236585 ; 558150 ;
Abstract

Cations and anions contained as impurities in a spent organic solvent can be removed by an alkaline aqueous solution passing through inside of hydrophobic porous membrane such as hollow fibers for capturing anions and by an acidic aqueous solution passing through inside of hydrophobic porous membrane such as hollow fibers for capturing cations at the same time so as to regenerate the organic solvent. An apparatus suitable for removing cations and anions simultaneously from the spent organic solvent is also provided.

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Uetake, Naohito. (1992). Process and apparatus for regenerating spent reprocessing extraction (U.S. Patent No. 5082602). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5082602

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