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:
Jun. 24, 2025
Filed:
Aug. 16, 2020
Sck.cen, Brussels, BE;
Dominic Maertens, Westerlo, BE;
Thomas Cardinaels, Mol, BE;
SCK.CEN, Brussels, BE;
Abstract
A method for producing Pb-212 and Ac-225 isotopes includes irradiating a Ra-226 containing target with charged particles and producing an irradiated target having at least Ac-225 isotope particles. Following irradiation and a cooling period, actinium isotopes are separated from a residual radium-containing fraction using chromatography. Subsequently, after an additional waiting period, lead isotopes are separated from the remaining radium fraction through extraction chromatography. The extraction process employs a resin containing an 18-crown-6 ether or an equivalent in a nitric acid (HNO3) and/or hydrochloric acid (HCl) medium to isolate Pb-212 and Ac-225 isotope particles.