Buffer material composed of bentonite modified with layered double hydroxide(LDH) and method of preparing the same
AssigneePostech Research and Business Development Foundation
InventorsJu Eun Kim, Seok Ju Hong, Woo Yong Um
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Abstract
The present invention relates to a method of preparing a buffer material composed of bentonite modified with a layered double hydroxide (LDH) as a buffer material used for deep geological disposal of radioactive waste, the method including a step (a) of producing a first mixture by adding a compound containing a divalent cationic material, aluminum nitrate (Al(NO3)3), and bismuth nitrate (Bi(NO3)3) to a reactor.
Claims13
A method of preparing a buffer material used for deep geological disposal of radioactive waste, the method comprising:
- a step (a) of producing a first mixture by adding a compound containing a divalent cationic material, aluminum nitrate (Al(NO3)3), and bismuth nitrate (Bi(NO3)3) to a reactor;
- and
- a step (b) of producing a second mixture by adding bentonite to the first mixture produced in the step (a).
A buffer material used for deep geological disposal of radioactive waste, the buffer material comprising bentonite having a surface modified with a LDH,
- wherein the LDH includes aluminum (Al) and bismuth (Bi).
Dependencies are inferred from the claim text.