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:
Feb. 01, 1977
Filed:
Oct. 25, 1974
Applicant:
Inventors:
Fausto Calderazzo, Ghezzano, IT;
Marco Pasquali, Pisa, IT;
Pierpaolo Garibaldi, San Donato Milanese, IT;
Assignee:
Snam Progetti S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2604291 ;
Abstract
A chelated compound of uranium (IV) or thorium is prepared by reacting an anhydrous halide of uranium (IV) or thorium with a chelating agent such as acetylacetone in the presence of an anhydrous solvent and gaseous ammonia in the temperature range of 10 to 60.degree. C.