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:
Aug. 04, 1981
Filed:
Oct. 01, 1979
Kazunori Fujita, Ibaraki, JP;
Shigeo Uno, Hitachi, JP;
Seizi Takeuchi, Hitachiota, JP;
Hisao Yamashita, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An inorganic particulate adsorbent of a titania-alumina system for treating a superheated water containing radioactive materials such as cobalt ions, which is free from release of corrosive impruities, and which has a high adsorption capacity of radioactive materials and a high mechanical strength is prepared by hydrolyzing a titanium alkoxide and an aluminum alkoxide, thereby forming a hydrous titanium oxide and a hydrous aluminum oxide, respectively; precalcining the hydrous titanium oxide and aluminum oxide, mixing and molding the resulting titania and alumina into a particulate mixture thereof having a titania mole fraction of 0.2-0.9, and calcining the particulate mixture at 500.degree.-700.degree. C. This absorbent is effectively used in treating boiling water-type nuclear reactor core-circulating water to remove radioactive substances therefrom.