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.:
Date of Patent:
Nov. 23, 1999
Filed:
Jun. 30, 1998
Applicant:
Inventors:
Kazuhiko Motoba, Ibaraki, JP;
Katutoshi Narita, Ibaraki, JP;
Assignee:
Nippon Mining & Metals Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210634 ; 210638 ; 210670 ; 210688 ; 205586 ; 205705 ; 423 87 ;
Abstract
In a method for recovering antimony from the electrolyte of copper electro-refining process, the antimony is adsorbed on the chelating resin and is then eluted by acid. The eluate is then neutralized to recover antimony. In a conventional method, a large amount of acid and alkali is used. In the inventive eluting method, the antimony concentration in the acidic eluting solution is adjusted to 4 g/L or more in the first step and 3 g/L or less in the second step.
Motoba, Kazuhiko. (1999). Method for eluting antimony adsorbed on chelating resin (U.S. Patent No. 5989430). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5989430
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile