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:
Jul. 22, 2014
Filed:
Sep. 11, 2009
Joti Nath Sharma, Mumbai, IN;
Ritesh Ruhela, Mumbai, IN;
Smitha Manohar, Mumbai, IN;
Piaray Kishen Wattal, Mumbai, IN;
Ashok Kumar Suri, Mumbai, IN;
Joti Nath Sharma, Mumbai, IN;
Ritesh Ruhela, Mumbai, IN;
Smitha Manohar, Mumbai, IN;
Piaray Kishen Wattal, Mumbai, IN;
Ashok Kumar Suri, Mumbai, IN;
Secretary, Department of Atomic Energy, Mumbai, Maharashtra, IN;
Abstract
The novel lipophilic metal extractants of the class dialkyldiaza-tetraalkyloctanediamide (DADA) useful to selectively separate trivalent americium (sup. 241 Am) from trivalent lanthanides are represented by the formula 1: Wherein R is a Cto Cnormal alkyl and R' is a Cto Cnormal and branched alkyl group. The compounds are synthesized at high yield and purity by the reaction of corresponding N,N′-dialkylethylenediamine and N,N-dialkyl-2-chloroacetamide. The separation is achieved by utilizing the soft-soft interaction between the trivalent actinides and 'N' atoms of the extractant. Both soft donor 'n' and hard donor 'O' sites are incorporated in the molecule for better extraction of trivalent actinides over trivalent lanthanides. Thus, this molecule can be used as selective extractant to separate trivalent actinides from trivalent lanthanides.