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:
Apr. 30, 1985
Filed:
Jul. 06, 1982
Applicant:
Inventors:
Hajimu Wakabayashi, Kawanishi, JP;
Ryohei Terai, Ibaraki, JP;
Hiroshi Yamanaka, Ikeda, JP;
Shigeo Hara, Osaka, JP;
Assignee:
Agency of Industrial Science & Technology, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21F / ; G21F / ;
U.S. Cl.
CPC ...
252629 ; 252632 ; 501 12 ;
Abstract
A process for vitrifying liquid radioactive waste is provided. In this process, a solution of a water-soluble vitrifying-facilitating inorganic compound in liquid radioactive waste is mixed with a solution obtained by hydrolyzing an alkyl silicate and then the solution mixture is left to gel. Thereafter, the resulting gel is irradiated with microwave to calcine the gel, and the calcined gel is further heated to melt and then cooled to obtain a vitrified product.