Skip to Main Content
The online publications platform for American Nuclear Society members.
191
Views
7
CrossRef citations to date
0
Altmetric
Technical Papers

Parameter Surveys on Glass-Bonded Sodalite Synthesis Conditions from Spent Salt Generated in Pyroprocess

, &
Pages 261-271 | Received 05 Jan 2018, Accepted 16 Mar 2018, Published online: 30 Apr 2018
 

Abstract

A parameter-based survey of the synthesis conditions by a so-called pressureless consolidation method to fabricate glass-bonded sodalite waste form for stabilizing fission products generated in pyrometallurgical reprocessing of spent metal fuel was performed. The maximum temperature, the heating duration at the maximum temperature, the glass fraction in the initial material, and the weight load used for pressing the material were chosen as the variable parameters. Accordingly, modified conditions to reduce the maximum temperature and increase the weight load were selected for reducing the volatilized-salt ratio during the heating and the free-salt ratio in the product. By fabricating a simulated waste under the modified conditions, the effect of changing the conditions was confirmed. Leaching tests in pure water using the consolidated products fabricated under both reference and modified conditions showed that the stability of the products was not significantly deteriorated by modifying the heating conditions.

Acknowledgments

The authors acknowledge the unfailing assistance of K. Kobayashi, N. Tanaka, and M. Tsushima of Electric Power Engineering Systems Company, Ltd., for sample analysis and microscopic observation of the consolidated products. The present study was conducted as a part of SACSESS (Safety of Actinide Separation Processes) of the 7th Framework Program supported by EURATOM (European Atomic Energy Community).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.