Encapsulation of radioactive waste using a sodium silicate...

Details Encapsulation of radioactive waste using a sodium silicate... Encapsulation of radioactive waste using a sodium silicate...

2007-07-10

2007-07-10

Langel, Wayne A. (Department: 1754)

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

By fixation in stable solid media

C588S015000, C588S019000

Reexamination Certificate

active

10485926

ABSTRACT:
The present invention relates to an immobilizing medium for the encapsulation of radioactive waste. The waste immobilizing medium has a sodium silicate based glass matrix in which there is contained radioactive waste wherein the waste comprises one or more inert metal components and one or more fission products. At least a portion of the inert metal components are dissolved in the glass matrix and increase its durability. As a result, the waste immobilising medium is highly durable and leach resistant and is suitable for long term storage of radioactive waste. The inert metal components preferably comprise iron, nickel and chromium.

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Patent Abstracts of Japan, Publication No. 07270596, Application No. 06060714 (1 page).
International Search Report (4 pages).

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