Radioactive liquid waste removal system
US-2026051417-A1 · Feb 19, 2026 · US
Solidifying-agent composition containing alumina cement for solidifying radioactive waste and method for solidifying radioactive waste using same
US11200995B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11200995-B2 |
| Application number | US-201816035011-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2018 |
| Priority date | Jan 13, 2016 |
| Publication date | Dec 14, 2021 |
| Grant date | Dec 14, 2021 |
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Abstract
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This invention relates to a solidifying agent for solidifying radioactive waste, and more particularly to a solidifying-agent composition for solidifying radioactive waste, including alumina cement and a gypsum powder. The solidifying-agent composition including alumina cement and a gypsum powder is capable of effectively minimizing an increase in the volume of a solidified radioactive waste product to a level satisfying physical and chemical safety regulations upon the solidification of radioactive waste.
First claim
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The invention claimed is: 1. A solidifying-agent composition for solidifying radioactive waste, comprising alumina cement, a gypsum powder, and a defoaming agent. 2. The solidifying-agent composition of claim 1 , wherein the alumina cement is contained 10 to 70 parts by weight of 100 parts by weight of the composition, and the gypsum powder is contained 5 to 50 parts by weight of 100 parts by weight of the composition. 3. The solidifying-agent composition of claim 2 , further comprising, of the total of 100 parts by weight of the composition, 1 to 10 parts by weight of a resin powder, 0.01 to 3 parts by weight of a reaction accelerator, 0.01 to 5 parts by weight of a retention agent, 0.01 to 5 parts by weight of the defoaming agent, and 0.1 to 10 parts by weight of a fluidizing agent. 4. The solidifying-agent composition of claim 1 , comprising a compressive strength of at least 13.5 MPa after the solidifying agent is mixed with radioactive waste, sealed, and wet cured for 28 days.
Assignees
Inventors
Classifications
Inorganic materials not provided for in groups {C04B14/022 and} C04B14/04 - C04B14/34 · CPC title
- G21F9/165Primary
Cement or cement-like matrix (compositional aspects C04B) · CPC title
Calcium-sulfate · CPC title
Disposal of solid waste · CPC title
Aluminous cements (monolithic refractories or refractory mortars C04B35/66) · CPC title
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- What does patent US11200995B2 cover?
- This invention relates to a solidifying agent for solidifying radioactive waste, and more particularly to a solidifying-agent composition for solidifying radioactive waste, including alumina cement and a gypsum powder. The solidifying-agent composition including alumina cement and a gypsum powder is capable of effectively minimizing an increase in the volume of a solidified radioactive waste pr…
- Who is the assignee on this patent?
- Cho Nam Chan, Ju Young Jong, Kim Jeong Myeong, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification G21F9/165. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 14 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).