Patents Examined by Stephen L. Lechert, Jr.
  • Process for solidifying radioactive waste
    Patent number: 4581162
    Abstract: A solid radioactive waste can be solidified by a process comprising packing a solid radioactive waste in a container, adding to the container an aqueous solution comprising an alkali silicate, a hardening agent and a fluidity-improving agent for the aqueous solution and conducting the solidification of the alkali silicate, the resulting solidified radioactive waste being excellent in weather resistance, showing no cracks and having sufficient strength.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: April 8, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Fumio Kawamura, Tetsuo Fukasawa, Naohito Uetake, Kiyomi Funabashi