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:
Mar. 09, 1999
Filed:
Dec. 24, 1997
Applicant:
Inventors:
Sotaro Miyano, Miyagi, JP;
Nobuhiko Iki, Miyagi, JP;
Fumitaka Narumi, Miyagi, JP;
Naoya Morohashi, Miyagi, JP;
Hitoshi Kumagai, Saitama, JP;
Assignees:
Cosmo Research Institute, Tokyo, JP;
Cosmo Oil Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C22B / ; C22B / ; C01F / ;
U.S. Cl.
CPC ...
423-8 ; 423-9 ; 423 215 ; 423 22 ; 423 24 ; 423 49 ; 423 54 ; 423 63 ; 423 70 ; 423 99 ; 423139 ;
Abstract
A composition for extracting a transition metal which comprises as an active ingredient a cyclic phenol sulfide represented by the following formula (1): ##STR1## wherein X represents a hydrogen atom, a hydrocarbon group, an acyl group, a carboxyalkyl group, or a carbamoylalkyl group; Y represents a hydrocarbon group; Z represents a sulfide group, a sulfinyl group, or a sulfonyl group; and n is an integer of 4 to 8; and a method for extracting a transition metal using the composition