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:
Sep. 04, 2007
Filed:
Jun. 04, 2002
Hyon Soo Han, Taejon-si, KR;
Ul Jae Park, Taejon-si, KR;
Hyeon Young Shin, Taejon-si, KR;
Kwon MO Yoo, Taejon-si, KR;
Hyon Soo Han, Taejon-si, KR;
Ul Jae Park, Taejon-si, KR;
Hyeon Young Shin, Taejon-si, KR;
Kwon Mo Yoo, Taejon-si, KR;
Abstract
A method for distillation of sulfur for preparing radioactive phosphorous nuclide includes the steps of: charging powdered sulfur into a target tube designed to have an upper and a bottom neck; degassing the target tube to form a vacuum therein, followed by heating the upper neck to seal the target tube; irradiating neutrons into the sealed target tube to produce radioactive phosphorous nuclide; heating the distillation zone to distill the remaining unreacted sulfur; and cleaving the target tube at the bottom neck to separate the distillation and the cooling zone from each other, the separated zones containing the radioactive phosphorous nuclide and the unreacted sulfur, respectively, whereby the radioactive phosphorous nuclide of high purity can be prepared while the sulfur can be recovered at high efficiency.