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. 04, 1992
Filed:
Oct. 25, 1990
Applicant:
Inventors:
Shiunkichi Ueda, Izumiootsu, JP;
Tomoe Suita, Ibaraki, JP;
Masahiko Murakami, Osaka, JP;
Mitsutomo Tsuhako, Nishinomiya, JP;
Assignee:
Tayca Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423308 ; 210682 ; 423309 ; 502400 ;
Abstract
A process for preparing a crystalline layered hydrogenphosphate in a shortened period of time in high efficiency, which comprises reacting a tetravalent metal compound with phosphoric acid or its salt at an elevated temperature with introducing steam into the reaction system. Crystalline layered cerium(IV) bis(hydrogen-phosphate), particularly cerium(IV) bis(hydrogen-phosphate) dihydrate prepared by the above process, has an excellent ability of selectively adsorbing cesium ion, and is useful as a cesium ion adsorbent.